Zeitschriftenartikel: „Clarias batrachus“

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Satpathi*, Manisha, und Ravinder Singh. „Toxic effects of sub lethal concentration of dioctyl phthalate on the histology of liver of Clarias batrachus (Linn.).“ International Journal of Bioassays 5, Nr. 09 (31.08.2016): 4874. http://dx.doi.org/10.21746/ijbio.2016.09.0017.

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Dioctyl phthalate (DOP) commonly used as plasticizer enters into aquatic environment from the industries manufacturing plastic products, PVC resins, cosmetics and many other commercial products. Therefore, this study was designed to evaluate the acute toxicity effects of Dioctyl phthalate on fresh water fish Clarias batrachus. The 96 hour LC50 of Dioctyl phthalate in Clarias batrachus was estimated as 14.5ml/L. Histopathological changes in liver of Clarias batrachus were determined by exposing them to a fraction of LC50(1/5th) dose with every change of water for 30 days.The liver of Clarias batrachus was excised at every interval of 30 days and histological changes of liver were studied under light microscopy. Liver tissues showed abnormalities. Centrilobular vacuolation, necrosis, eccentric nuclei and enlarged nuclei, Centrilobular degeneration of hepatocytes were observed in liver tissue of fish.

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Olufeagba, Samuel Olabode, und Victor Tosin Okomoda. „Cannibalism and Performance Evaluation of Hybrids between Clarias batrachus and Clarias gariepinus“. Croatian Journal of Fisheries 74, Nr. 3 (01.09.2016): 124–29. http://dx.doi.org/10.1515/cjf-2016-0019.

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AbstractCannibalism is an important characteristic of African catfish that significantly reduces the number of stocked fish at harvest. This study evaluates the effect of reciprocal hybridization of Clarias batrachus and Clarias gariepinus on cannibalism and growth performance of their progenies in an indoor rearing system. The result obtained reveals excellent performance of hybrids of C. gariepinus ♂ and C. batrachus ♀ over the purebreds in terms of growth. However, the reciprocal hybrids between C. gariepinus ♀ and C. batrachus ♂ all died few hours after hatching. Cannibalism was significantly reduced in the crosses between C. gariepinus ♂ and C. batrachus ♀ with 100% survival after five months of culture. Hence, this could be exploited in commercial production of catfish to reduce cannibalism and increase harvest size of fish farmers.

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Tamam, Muhammad Badrut, Aisyah Hadi Ramadani und Fitri Sil Valen. „Clarias batrachus linnaeus, 1758 (siluriformes, clariidae): new records of threatened catfish from Bawean Island, Indonesia“. Genbinesia Journal of Biology 1, Nr. 1 (03.11.2021): 30–34. http://dx.doi.org/10.55655/genbinesia.v1i1.5.

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Clarias batrachus Linnaeus, 1758 is one of catfish in Indonesia. The spread of Clarias batrachus in Indonesia have generally in mainland of Sumatra, Borneo and Java. In 2019 we report for the first time the presence of C. batrachus on Bawean, a small, isolated island, conservation area in the middle of Java Sea. A description of morphological characters of a specimen are provided. Presence of C. batrachus on Bawean Island caused by the geographical reason and human introduction factors.

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B., Theresia Indah, Bambang Sumaryono, Ketut Suardita und Amelia Putri R. „BMP-2 Expression of Post Tooth Extraction that Catfish Oil Application“. KnE Life Sciences 3, Nr. 6 (03.12.2017): 69. http://dx.doi.org/10.18502/kls.v3i6.1116.

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Catfish (Clarias batrachus) oil contain the highest amount of omega-3-PUFA among other freshwater fish. The omega-3-PUFA in fish oil produced eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). It is known that EPA and DHA in essentials fatty acid (EFA) could improve BMP-2 expression. Bone morphogenetic protein-2 (BMP-2) is bone stimulator which capable of inducing differentiation of mesenchymal cells into osteoblast, stimulating bone formation in wound healing process of dental extraction. Purpose: To prove the increasing expression of BMP-2 after catfish (Clarias batrachus) oil application. Methods: We have used the post test only design in this research. There have been 21 Rattus novergicus as research samples, and those were divided into 3 groups, group KK as control, group KP1 was given catfish (Clarias batrachus) oil in 5% concentration, and group KP2 was given catfish (Clarias batrachus) oil in 10% concentration. Catfish (Clarias batrachus) oil were applied into the socket of dental extraction. Rat was decapulated 7 days after fish oil application and the jaw in the treated regions and control group were cut for immunohistochemistry examination to observe BMP-2 expression. Data was analyzed using one-way ANOVA test. Result: There is significant difference increased of BMP-2 expression between control and treatment group. In samples given with 10% concentration of catfish oil had the most significant increase of BMP-2 expression. Conclusion: Catfish (Clarias batrachus) oil in 10% concentration could increase the expression of BMP-2 post dental extraction.Key words: Catfish oil, BMP-2, dental extraction.

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Fitrian, Andry, Dzulfikri Ali Mubarok, Like Audia, Della Nurmalita und Nazwa Aulia Khania. „Pelatihan Budidaya Lele Jenis Clarias Batrachus dengan Sistem Bioflok bagi Karang Taruna Kecamatan Kalideres“. PUNDIMAS: Publikasi Kegiatan Abdimas 2, Nr. 2 (13.07.2023): 74–79. http://dx.doi.org/10.37010/pnd.v2i2.1158.

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Pelatihan Budidaya Lele Jenis Clarias Batrachus dengan Sistem Bioflok bagi Karang Taruna Kecamatan Kalideres dilatarbelakangi dengan adanya gagal panen dari budidaya lele yang dialami oleh salah satu anggota Karang Taruna RW.005 Kecamatan Kalideres Kota Jakarta Barat dikarenakan minimnya pemahaman terkait cara membudidaya dan faktor alam yaitu letak geografis daerah tersebut yang rawan terhadap bencana banjir. Tujuan dilaksanakannya kegiatan ini adalah memberikan Pelatihan Budidaya Lele Jenis Clarius Batrachus (Lele Lokal) dengan sistem Bioflok Bagi Karang Taruna RW.005 Kecamatan Kalideres, Kota Jakarta Barat. Program ini dimulai dengan analisis faktor penyebab terjadinya permasalahan budidaya lele yang dilakukan oleh warga dan anggota Karang Taruna, kemudian menyusun materi yang disesuaikan dengan kemampuan, ketertarikan, dan kebutuhan masyarakat di lingkungan tersebut, kemudian disusul oleh penyusunan buku panduan, dan penyajiannya baik secara presentasi maupun secara cetak, kemudian dilakukan pelatihan selama lima hari dan diakhiri dengan evaluasi dan monitoring. Kegiatan ini sudah terlaksana penuh, dengan peningkatan pemahaman budidaya lele jenis Clarias Batrachus (lele lokal) dengan sistem bioflok sebesar 60% setelah pelatihan dan angket kepuasan terhadap budidaya lele jenis Clarias Batrachus dengan sistem bioflok sebesar 96% dengan hasil dapat meningkatkan efektivitas waktu panen dan dapat terhindar dari bencana banjir diambil dengan metode survei awal dan akhir yang diukur dengan metode pengisian angket kepuasan. Keberlanjutan program dapat terus dilaksanakan dengan melakukan monitoring perkembangan hasil panen dari budidaya, penambahan kolam baru, dan menambah bibit lele agar keberlangsungan dan kebermanfaatan pelatihan budidaya ini dapat dirasakan masyarakat luas.

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Bharathkumar, Goondi, und Thangapalam Jawahar Abraham. „Oxytetracycline resistant bacteria in Clarias gariepinus and Clarias batrachus larvae and the environment“. Journal of Fisheries 3, Nr. 1 (30.04.2015): 217–20. http://dx.doi.org/10.17017/j.fish.94.

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Antibiotics and several other chemicals are used in catfish aquaculture as a remedy for various diseases. Reports on the distribution of different groups of bacteria especially the antibiotic resistant bacteria in catfish nursery system are scanty. The present study quantified motile aeromonads, pseudomonads and antibiotic (oxytetracycline) resistant bacteria in Clarias gariepinus and C. batrachus larvae and the rearing water from five catfish nurseries of West Bengal, India between March 2007 and July 2007. The C. gariepinus and C. batrachus larvae recorded mean counts of log 7.26±0.18/g and log 6.24±0.64/g, log 6.37±0.41/g and log 4.93±0.51/g, log 5.46±0.22/g and log 4.38±0.53/g and, log 6.27±0.64/g and log 5.57±0.12/g, respectively for total viable bacteria (TVCs), motile aeromonads (MACs), presumptive pseudomonads (PPCs) and oxytetracycline resistant bacteria (ARBCs). The levels of TVCs, MACs, PPCs and ARBCs were significantly high in C. gariepinus than in C. batrachus larvae. The rearing water recorded comparatively low bacterial counts than in larvae. The difference between the TVCs of larvae and larval rearing water of C. gariepinus was statistically significant, where as it was insignificant for C. batrachus. The mean proportion of motile aeromonads of C. gariepinus larvae and rearing water was about 4-5 fold higher than in C. batrachus.

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Bharathkumar, Goondi, und Thangapalam Jawahar Abraham. „Oxytetracycline resistant bacteria in Clarias gariepinus and Clarias batrachus larvae and the environment“. Journal of Fisheries 3, Nr. 1 (30.04.2015): 217. http://dx.doi.org/10.17017/jfish.v3i1.2015.48.

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Antibiotics and several other chemicals are used in catfish aquaculture as a remedy for various diseases. Reports on the distribution of different groups of bacteria especially the antibiotic resistant bacteria in catfish nursery system are scanty. The present study quantified motile aeromonads, pseudomonads and antibiotic (oxytetracycline) resistant bacteria in Clarias gariepinus and C. batrachus larvae and the rearing water from five catfish nurseries of West Bengal, India between March 2007 and July 2007. The C. gariepinus and C. batrachus larvae recorded mean counts of log 7.26±0.18/g and log 6.24±0.64/g, log 6.37±0.41/g and log 4.93±0.51/g, log 5.46±0.22/g and log 4.38±0.53/g and, log 6.27±0.64/g and log 5.57±0.12/g, respectively for total viable bacteria (TVCs), motile aeromonads (MACs), presumptive pseudomonads (PPCs) and oxytetracycline resistant bacteria (ARBCs). The levels of TVCs, MACs, PPCs and ARBCs were significantly high in C. gariepinus than in C. batrachus larvae. The rearing water recorded comparatively low bacterial counts than in larvae. The difference between the TVCs of larvae and larval rearing water of C. gariepinus was statistically significant, where as it was insignificant for C. batrachus. The mean proportion of motile aeromonads of C. gariepinus larvae and rearing water was about 4-5 fold higher than in C. batrachus. The catfish nurseries recorded high prevalence of oxytetracycline resistant bacteria ranging from 3.58-35.71% in larval rearing water and 2.05-37.89% in larvae.

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Jagyanseni, Subhashree, Saswati Mishra und Satya Narayan Sahoo. „A Study on Genotoxic Potential of Acephate in Clarias batrachus“. Journal for Research in Applied Sciences and Biotechnology 2, Nr. 1 (03.02.2023): 22–25. http://dx.doi.org/10.55544/jrasb.2.1.5.

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Acephate is an insecticide made up of organophosphates. It is applied to food crops, citrus trees, on golf courses, in commercial or institutional buildings, and as a seed treatment. Products containing acephate can be purchased as tablets, liquids, granules, powders, and water-soluble packs. Acephate 75% brand name-Asataf insecticide manufactured by TATA RALLIS was used for the test. The solvent used was glass double distilled (g.d.d.) water. Fresh water catfish Clarias batrachus were collected from local water bodies of Cuttack district. All the fishes were acclimatized for fifteen days in laboratory aquaria containing 30L dechlorinated tap water prior to the initiation of the experiment. The peripheral blood smear slides were prepared from the blood collected by caudal incision in accordance with Al-Sabti (1986) and Das and Nanda (1986) with some modifications which were prepared animals were sacrificed after 24, 48 and 72 hours of Exposure and were used for each treatment group in both types of administrations (IP and dermal). The increased concentration of acephate directly affects our biological fish sample i.e. Clarias batrachus. Acephate is causing serious problems in fish as per our genotoxicity study of acephate on Clarias batrachus. Clarias batrachus is a commonly found fish species in fresh water habitat which includes ponds, ditches, wetlands and rice fields of India specially in Odisha.The irrational use of pesticides containing acephate in agriculture cause harmful effects on Clarias batrachus, which is a most important species of fish for maintaining the aquatic diversity.

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Muhammad Zakiyul Fikri, Ahmad Fauzan Lubis, Ayu Diana und Elvi Suardi. „Pengaruh Lama Pemasakan Terhadap Karakteristik Ikan Lele (Clarias batrachus) Asap Cair“. JURNAL RISET RUMPUN ILMU HEWANI 1, Nr. 2 (22.10.2022): 91–104. http://dx.doi.org/10.55606/jurrih.v1i2.967.

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Ikan asap merupakan salah satu produk olahan yang digemari konsumen baik di Indonesia maupun di mancanegara karena rasanya yang khas dan aroma yang sedap spesifik. Penelitian ini bertujuan untuk mengetahui pengaruh lama pemasakan terhadap karakteristik ikan lele (Clarias batrachus) asap cair dan mengetahui penerimaan konsumen melalui uji hedonik serta mengetahui hasil uji proksimat terhadap produk ikan asap cair. Metode yang digunakan dalam penelitian ini terdiri dari tiga tahapan. Tahapan I merupakan tahap preparasi bahan baku. Tahapan II yaitu tahap pembuatan ikan lele (Clarias batrachus) asap menggunakan asap cair dengan tiga perlakuan terhadap lama pemasakan yaitu ( A1 = 12 jam, A2 = 24 jam, A3 = 36 jam), selanjutnya tahapan III adalah tahap pengujian. Pengujian yang dilakukan dalam penelitian ini adalah pengujian hedonik dan pengujian proksimat ikan lele (Clarias batrachus) asap. Data dianalisis menggunakan Analysis of Variance (ANOVA) pada tingkat kepercayaan 95%. Hasil penelitian menunjukkan lama pemasakan memberikan pengaruh yang nyata (p<0,05) terhadap karakteristik ikan lele (Clarias batrachus) asap cair. Hasil terbaik adalah perlakuan A3 dengan lama pemasakan selama 36 jam pada suhu 65 ℃ dengan nilai kadar air 10,5%, kadar abu 2,8%, kadar lemak 17,2%, kadar protein 37,47%, karbohidrat 32,03%, kenampakan 6,31, aroma, 6,31, rasa 5,29 dan tekstur 5,71.

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Yesmin, Sabina, und Hamida Khanum. „Biochemical analysis of different nutritional components of Clarias batrachus (Linnaeus) and Clarias gariepinus (Burchell) in relation to parasitic infestation“. Bangladesh Journal of Zoology 47, Nr. 1 (27.06.2019): 27–39. http://dx.doi.org/10.3329/bjz.v47i1.42018.

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Two catfish: Clarias batrachus (Linnaeus) and C. gariepinus (Burchell) were selected for examination during June, 2014 to May, 2016. The percentage (g/100 g) of nutrients such as moisture, ash, fat, protein, carbohydrate contents (mg/100 g) and energy (K cal) in C. batrachus and C. gariepinus was determined. Analyses were done to measure the nutrition value of edible body parts (flesh) of C. batrachus and C. gariepinus. The effects of modifying factors such as, season, sex, length, and diet of the hosts on the abundance of parasites were also studied. Present observation on biochemical analysis showed small variation in nutrient contents between C. batrachus and C. gariepinus. Protein, fat, moisture, carbohydrate levels were higher in non-infected C. batrachus (moisture 78.25 ± 0.06 g/100 g, ash 1.42 ± 0.09 g/100 g, fat 1.20 ± 0.04 g/100 g, protein15.05 ± 0.19 g/100 g, carbohydrate 5.53%) and non-infected C. gariepinus (moisture 78.62 ± 0.01 g/100 g, ash 1.22 ± 0.10 g/100 g, fat 1.19 ± 0.03 g/100 g, protein 14.69 ± 0.07 g/100 g, carbohydrate 4.95% than those of infected C. batrachus and C. gariepinus. In both species the highest presence of most of the nutrient components was observed in winter. Bangladesh J. Zool. 47(1): 27-39, 2019

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Sinha, Gunjita. „HAZARDOUS EFFECT OF ARSENIC TRIOXIDE ON FRESH WATER CAT FISH CLARIAS BATRACHUS AT GARGA DAM, BOKARO“. INTERNATIONAL JOURNAL OF HUMANITIES, ENGINEERING, SCIENCE AND MANAGEMENT 4, Nr. 1 (30.06.2023): 23–28. http://dx.doi.org/10.59364/ijhesm.v4i1.234.

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Arsenic trioxide contamination has increased due to anthropogenic activities such as urbanisation, industry, and transportation. As is contaminated by mining and mountain erosion. In this study, numerous changes were observed in the blood serum protein of catfish (Clarias batrachus) in the biochemical parameter of the fish caused by As2O3. By monitoring Clarias batrachus in As2O3 contaminated water inside the allotted period, arsenic trioxide has lowered its protein content, indicating that As2O3 decreases content of protein.

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Ganguly, Arindam, Amrita Banerjee, Asish Mandal und Pradeep K. Das Mohapatra. „Probiotic-based cultivation of Clarias batrachus: importance and future perspective“. Acta Biologica Szegediensis 62, Nr. 2 (30.01.2019): 158–68. http://dx.doi.org/10.14232/abs.2018.2.158-168.

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Clarias batrachus (Linn.) is widely recognized in Indian sub-continent for its nutritional and economic significance. At present, it remains at a merely vulnerable state. Pathogenic infections, diminution of natural habitats and introduction of allied exotic fishes are the causes of productivity constraint, particularly in Southern Asia. Conversely, African cat fish Clarias gariepinus has been significantly identified as a potential threat to biodiversity, despite being its large scale cultivation across the world. Thus emphasis on indigenous C. batrachus farming is becoming inevitable. Currently, screening of autochthonous probiotic organisms for the cultivation of C. batrachus in semi-intensive manner is getting importance. At the same time, molecular omics-based technologies are also gaining considerable attention to identify potential probiotic markers. This review provides an overall concept of probiotics, its application and future perspectives in relation to the cultivation of C. batrachus.

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Khanum, Hamida, Farjana Easmin, Md Showket Hasan und Rimi Farhana Zaman. „Hemlninth and Parasitic Arthropod Prevalence in Catfish Clarias batrachus (L.) from Ponds in Savar“. Bangladesh Journal of Zoology 43, Nr. 2 (01.07.2016): 269–77. http://dx.doi.org/10.3329/bjz.v43i2.27397.

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A total of 115 Clarias batrachus were investigated for parasitic infestation. Out of 1504 parasites recovered from Clarias batrachus, 761 (50.59%) were cestodes, 34(2.26%) trematodes, 58(3.85%) nematodes and 12(0.79%) crustaceans ectoparasite. Cestodes showed the highest prevalence (66.09%) and the collected parasites were Bovienia serialis, Caryophyllaeus laticeps, Balanotaenia bancroftii, Djombangia penetrans, Orientocreadium batrachoides, Orientocreadium clariae, Procamallanus slomei, Spirocamallanus olsenia and ectoparasite Lernaea cyprinacea. Among the 9 species of parasites, P. slomei (28.69%) showed the highest prevalence. The moderate prevalence showed by Bovienia serialis and S. olsenia (21.74), lowest by O. batrachoides (10.43%) and Lernaea cyprinacea (10.43). The overall prevalence and mean intensity of parasite infection were 82.61% and 15.83 respectively. The highest parasitic infestation was found (88.43%) in intestine. Cestodes B. serialis, B. bancroftii and D. penetrans were recovered from stomach and intestine. P. slomei were collected from three regions viz. oesophagus, stomach and intestine, while Lernaea cyprinacea from gill. Seasonally the highest prevalence (90%) and mean intensity (24.27%) was recorded during summer.Bangladesh J. Zool. 43(2): 269-277, 2015

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Mallick, Anusaya. „Study of Glucose-6 Phosphatase activity in Clarias batrachus (Linn.) after feeding the probiotic fish feed“. INTERNATIONAL JOURNAL OF EXPERIMENTAL RESEARCH AND REVIEW 12 (30.08.2017): 14–23. http://dx.doi.org/10.52756/ijerr.2017.v12.002.

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Glucose-6 Phosphatase activity was studied in the air breathing fresh water catfish (Clarias batrachus) by giving the probiotic feed. The experiment was conducted in laboratory condition with glass jar aquarium. Bacteriological and different biochemical tests like cytochrome oxidase, fermentative and catalase test were analysed along with certain physiological parameters of water samples. Clarias batrachus was fed by prepared four diets, F1, F2, F3 and F4. The diets were prepared using fishmeal, soyabean meal, groundnut oil cake, rice bran, vitamin mineral mixture and different concentration of probiotics. The Clarias batrachus in experimental treatments were fed by the prepared diets upto six weeks. The significant amount of Lactic acid bacteria (LAB) was found in the gut microflora of the experimental fish. Glucose 6- phophatase activity was decreased in liver with increase in probiotic concentration in feed. But the enzyme activity in kidney, gill and stomach did not follow any trend. The water quality parameters like pH, CO2, DO, alkalinity, ammonia concentrations of the experimental tanks were varied significantly with treatment time.

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Mallick, Anusaya. „Study of Glucose-6 Phosphatase activity in Clarias batrachus (Linn.) after feeding the probiotic fish feed“. INTERNATIONAL JOURNAL OF EXPERIMENTAL RESEARCH AND REVIEW 12 (30.08.2017): 14–23. http://dx.doi.org/10.52756/ijerr.2017.v12.002.

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Glucose-6 Phosphatase activity was studied in the air breathing fresh water catfish (Clarias batrachus) by giving the probiotic feed. The experiment was conducted in laboratory condition with glass jar aquarium. Bacteriological and different biochemical tests like cytochrome oxidase, fermentative and catalase test were analysed along with certain physiological parameters of water samples. Clarias batrachus was fed by prepared four diets, F1, F2, F3 and F4. The diets were prepared using fishmeal, soyabean meal, groundnut oil cake, rice bran, vitamin mineral mixture and different concentration of probiotics. The Clarias batrachus in experimental treatments were fed by the prepared diets upto six weeks. The significant amount of Lactic acid bacteria (LAB) was found in the gut microflora of the experimental fish. Glucose 6- phophatase activity was decreased in liver with increase in probiotic concentration in feed. But the enzyme activity in kidney, gill and stomach did not follow any trend. The water quality parameters like pH, CO2, DO, alkalinity, ammonia concentrations of the experimental tanks were varied significantly with treatment time.

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Giri, Abhishek. „A Review on Conservation Strategies of A Wonder Fish Asian Catfish Clarias Batrachus (Linnaeus, 1748) By Artificial Propagation Method“. Aquaculture & Fisheries 7, Nr. 4 (15.10.2023): 1–5. http://dx.doi.org/10.24966/aaf-5523/100072.

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Sari Wahyu Waryani, Rika Silvia und Farida Hanum. „PEMANFAATAN KITOSAN DARI CANGKANG BEKICOT (Achatina fulica) SEBAGAI PENGAWET IKAN KEMBUNG (Rastrelliger sp) DAN IKAN LELE (Clarias batrachus)“. Jurnal Teknik Kimia USU 3, Nr. 4 (08.01.2015): 51–57. http://dx.doi.org/10.32734/jtk.v3i4.1656.

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The efforts that should be made to maintain the quality of fish is by using antimicrobial compounds, one of which is chitosan. In this research, characterization of chitosan from shell snail (Achatina fulica) has a water content of 5.07%, ash content of 1.8% and the degree of deacetylation (DD) 75.13%. The use of chitosan in this study was to determine the optimal conditions on chitosan concentration and storage time of mackerel (Rastrelliger sp) and catfish (Clarias batrachus) from the microbiological and organoleptic aspects. This research used a variation of the concentration of chitosan was 1%, 1.5%, 2% and 2.5% dissolved in 1% acetic acid. Observations were do with variation the storage time 10 hours, 15 hours, 20 hours and 25 hours and the provision of chitosan solution by soaking and spraying with the observation parameters Total Volatile Base (TVB), organoleptic and pH of fish. Based on the analysis, the results showed that the maximum concentration of chitosan on mackerel (Rastrelliger sp) and catfish (Clarias batrachus) is 1,5% and treatment by means of immersion is the best treatment. The use of chitosan solution on mackerel (Rastrelliger sp) survived 20 hours while catfish (Clarias batrachus) survived 15 hours.

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Parvez, Imran, Rukaya Akter Rumi, Purnima Rani Ray, Mohammad Mahbubul Hassan, Shirin Sultana, Rubaiya Pervin, Suvit Suwanno und Siriporn Pradit. „Invasion of African Clarias gariepinus Drives Genetic Erosion of the Indigenous C. batrachus in Bangladesh“. Biology 11, Nr. 2 (06.02.2022): 252. http://dx.doi.org/10.3390/biology11020252.

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The African catfish Clarias gariepinus has been introduced for aquaculture in Bangladesh due to the scarcity of indigenous C. batrachus fingerlings. However, the government of Bangladesh has banned the farming of C. gariepinus due to the carnivorous nature of this species. Recently C. gariepinus has been reported by fish farmers and consumers in Bangladesh, and unplanned hybridization between native and exotic species has been suspected. This study attempts to know the purity of C. batrachus by analyzing mitochondrial genes. Both directly sequenced and retrieved Cytochrome C Oxidase subunit I (COI) and cytochrome b (Cytb) genes from C. gareipinus and C. batrachus were analyzed by MEGA software. The morphologically dissimilar C. batrachus showed the least genetic distance (0.295) from C. gariepinus, which provided evidence of hybridization between the two species. Maximum likelihood (ML) phylogenetic trees showed that C. batrachus from Bangladesh did not cluster with C. batrachus of other countries, instead C. batrachus clustered with the exotic C. gariepinus. The suspected hybrid formed sister taxa with the exotic C. gariepinus. The study corroborates the genetic deterioration of C. batrachus by unplanned hybridization with the invasive C. gariepinus. Unplanned hybridization has deleterious consequences; therefore, immediate action is necessary for aquaculture sustainability and biodiversity conservation in Bangladesh.

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Padhi, Bhaja K., Sudip K. Ghosh und Radha K. Mandal. „Characterization of MboI satellites in Cirrhina mrigala and Clarias batrachus (Pisces)“. Genome 41, Nr. 1 (01.02.1998): 34–39. http://dx.doi.org/10.1139/g97-096.

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We have cloned and characterized two highly reiterated, tandemly repeated, and A + T rich MboI DNA fragments, one in Cirrhina mrigala (Cyprinidae), with a monomer size of 266 bp, and one in Clarias batrachus (Clariidae), with a monomer size of 227 bp. The MboI fragment in C. mrigala is species-specific and absent in other carps, such as Catla catla and Labeo rohita. The MboI fragment in C. batrachus was also present in two other catfishes tested, namely Clarias gariepinus and Heteropneustes fossilis. In C. mrigala xC. catla and C. mrigala x L. rohita hybrids, the C. mrigala specific MboI fragment is inherited uniparentally. In the reciprocal hybrids of C. batrachus xH. fossilis, the satellite ladder contains the bands of both parental species. The MboI satellite of carp may be useful in genetic introgression analysis and that of catfish in distinguishing between gynogenetic progeny and true hybrids.

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RADHAKRISHNAN, M. V., und E. SUGUMARAN. „EFFECT OF A BIODEGRADABLE SUBSTRATE SUGARCANE BAGASSE ON EGG AND SPERM QUALITY OF THE CATFISH, CLARIAS BATRACHUS (LINN.)“. Scientific Temper 3, Nr. 1&2 (09.02.2012): 69–72. http://dx.doi.org/10.58414/scientifictemper.2012.03.1.13.

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The present investigation has been conducted to evaluate the egg and sperm quality of thecatfish, Clarias batrachus (Linn.) cultured in sugarcane bagasse substrate medium. Adult Clariasbatrachus (av. wt. 196 g for males and 215 g for females) were reared at 20 per tank. No feed wasprovided to the fish in 3 of the substrate-added tanks (T1), while a pelleted diet was fed to the fish inthe remaining 3 substrate-added tanks (T2) and the other 3 tanks without substrate (T3). Five pairs ofmatured male and female Clarias batrachus were bred by hypophysation using OVAPRIM. Spawningsubstrates made from cut nylon mosquito nets were spread inside the tank to a depth of 10cm for thepurpose of incubation. Fertilized eggs obtained by mixing stripped eggs and spermatozoa fromOvaprim-induced brood fish were immediately spread thinly on the substrate for between 24-36hours for incubation and hatching. The brood fish fed the fishmeal-based diet and diet with sugarcanebagasse substrate had significantly higher (p<0.05) oocyte diameter, milt density, milt volume,sperm motility, higher percentage of egg fertilization, hatching and crude protein and lipid contents.These results showed that sugarcane bagasse can effectively be use as a substrate for the culture ofthe catfish Clarias batrachus.

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Monir, Md Shirajum, Nazneen Bagum, SM Lutful Kabir, Shuvho Chakra Borty und Mohammad Ashaf Ud Doulah. „Evaluation of pathogenicity of motile Aeromonas species in air-breathing catfish Magur (Clarias batrachus)“. Asian-Australasian Journal of Food Safety and Security 1, Nr. 1 (21.11.2017): 45–50. http://dx.doi.org/10.3329/aajfss.v1i1.55760.

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The present study was carried out to evaluate the comparative capability of producing infections and causing mortality of the experimental Magur (Clarias batrachus) with motile Aeromonas species. A total of 200 apparently healthy C. batrachus were acclimatized to the laboratory conditions for experimental study. Nine different groups (each group consisting of 20 fish) of healthy C. batrachus was injected with nine motile Aeromonas isolates (A. hydrophila-3, A. sobria-3 and A. caviae-3). Experimental C. batrachus were infected with motile A. hydrophila, A. sobria and A. caviae to groups 1-3, 4-6 and 7-9, respectively while group 10 was injected with sterile physiological saline (0.85% NaCl) and served as the control. The selected motile bacterial species via intramuscularly were injected at the rate of 4.5 × 105 cfu/fish for pathogenicity study on C. batrachus and monitored up to two weeks. The highest clinical infections were noticed 90% in group-3 whereas only 35% in group-8 within the experimental period. After two weeks of the experiment, the cumulative mortality rate was also found highest (60%) in group-3 but lowest (15%) in group-9 while no infection or mortality showed in group-10 (control group). The development of infection and mortality to the injected C. batrachus was associated more severely by Aeromonas hydrophila than A. sobria and A. caviae used in this study. However, the isolates motile Aeromonas species could serve as the primary cause of skin lesions as well as mortality in cultured C. batrachus. Asian Australas. J. Food Saf. Secur. 2017, 1 (1), 45-50

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Suryanti, Yanti, Agus Priyadi und Ningrum Suhenda. „PENAMBAHAN VITAMIN C DAN PENGGUNAAN ARGON DALAM PAKAN LELE LOKAL (Clarias batrachus) DI KOLAM TADAH HUJAN“. Jurnal Penelitian Perikanan Indonesia 3, Nr. 2 (06.04.2017): 91. http://dx.doi.org/10.15578/jppi.3.2.1997.91-95.

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Naeem, Zara, Amina Zuberi, Muhammad Ali, Ammar Danyal Naeem und Muhammad Naeem. „An approach to optimizing dietary protein to growth and body composition in walking catfish, Clarias batrachus (Linneaeus, 1758)“. PLOS ONE 19, Nr. 5 (03.05.2024): e0301712. http://dx.doi.org/10.1371/journal.pone.0301712.

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Clarias batrachus is a commercially important food fish. In the present study, effect of varying dietary protein levels was evaluated on the survival, growth parameters and proximate composition of C. batrachus. Diets comprising 25%, 30%, 35%, 40%, 45%, and 50% crude protein (CP) were supplied to fish in T1, T2, T3, T4, T5, and T6, respectively, at the rate of 5% of fish body weight for the entire 90 days, twice daily. Size of each stocked C. batrachus was recorded after 15 days. Results revealed 100% survival rate of C. batrachus in all treatments. Significantly highest (P<0.001) mean value of weight gain (g/fish), percent weight gain, daily growth rate, specific growth rate and protein efficiency ratio (PER) in C. batrachus were recorded, reared in T4 by feeding 40% CP in diet. The best FCR value (1.90±0.02) for C. batrachus was obtained in T4 by feeding 40%CP in diet. Mean value of water, ash, fat and protein contents (wet mass) were ranged 74.10–79.23%, 3.12–4.68%, 3.90–4.43% and 13.09–16.79% for C. batrachus in the studied treatment groups. Water content (%) was found significantly (P<0.05) higher in the body of C. batrachus for T1, T2, T3 and T6 than for T4 and T5. Ash was found significantly (P<0.05) higher in the fish reared in T4 and T5. Fat content in the wet body mass of C. batrachus was found significantly higher in T4 and T1. While, significant higher (P<0.05) values of mean protein content was noted in C. batrachus reared in T4 and T5. Body composition of C. batrachus was also categorically affected by body size, however, condition factor showed non-significant correlation in most of the relationships in the present study. Overall, results indicated that feeding appropriate diet (containing 40% CP) to the fish resulted good growth performance, lower FCR and higher protein content in the fish. Present study provides valuable knowledge of optimal dietary protein level in C. batrachus which will help in commercial success of aquaculture.

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Hafeez, Shifali, und Fauzia Anwar Sherwani. „Effect of Handling Stress on Primary and Secondary Stress Responses of the Catfish, Clarias batrachus“. Biosciences Biotechnology Research Asia 20, Nr. 1 (30.03.2023): 135–45. http://dx.doi.org/10.13005/bbra/3076.

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Cortisol is a major hormone directly associated with stress in fish and is a reliable physiological indicator of primary stress response in fish, whereas glucose and osmolality are the indicators of secondary stress response in fish. This study explored the stress levels in the catfish, Clarias batrachus (Magur) by measuring the cortisol, glucose, and osmolality levels in plasma by exposing the fish to three different kinds of interventions namely, non-anaesthetized, anaesthetized, and stressed. No statistically significant changes were reported in the plasma cortisol, plasma glucose, and plasma osmolality levels when the blood samples were collected after the three interventions. These results indicated that Clarias batrachus is a sturdy fish, which can withstand routine laboratory handling, and that the blood samples can be collected without anaesthetization.

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Priyanka Tiwari und Newton Paul. „Observation of morphometric characteristics in fish Clarias batrachus (Linnaeus, 1758) from Lucknow, Uttar Pradesh“. International Journal of Science and Research Archive 9, Nr. 2 (30.07.2023): 349–54. http://dx.doi.org/10.30574/ijsra.2023.9.2.0591.

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The walking catfish (Clarias batrachus Linnaeus, 1758) is an omnivorous bottom feeder, incorporating various food sources in its diet, such as insects, insect larvae, crustaceans, and vegetable matter. It is primarily nocturnal. However, it can adapt to pond conditions and readily switch to a more carnivorous diet. During observation, the main focus is to examine the morphometric relationship of Clarias batrachus for that total ten morphometric characters were measured for each specimen. Notably, a linear relationship was observed between the total length and other morphometric characters. The results highlight a strong correlation between most morphometric parameters and the total length of the catfish. However, it was found that the anal length does not show a significant correlation with the total length.

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Sari, Dwi Inda, Siti Hanggita, Herpandi Herpandi und Reistha Warayu. „Karakteristik Sensoris Chikuwa dengan Perbedaan Bahan Baku Surimi Ikan“. Jurnal FishtecH 10, Nr. 1 (23.08.2021): 53–66. http://dx.doi.org/10.36706/fishtech.v10i1.13117.

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Increased production of aquacultured freshwater fish, such as Pangasius pangasius, Oreochromis niloticus, and Clarias batrachus, wich have low commercial value as potential alternative raw materials for surimi. This study aimed to determine the sensory characteristics of chikuwa produced using different raw materials of surimi and increase the diversity of processed fishery products that are highly nutritious with recommended physical quality. This research used the randomized block design (RBD) method with three repetitions. The treatment used were the difference in raw materials of surimi, P1 (Pangasius pangasius), P2 (Oreochromis niloticus) and P3 (Clarias batrachus). Parameters in this research included physical analysis of surimi (gel strength), chemical analysis of surimi (protein content and moisture content), and chikuwa sensory analysis. The results showed that Pangasius pangasius had a significant effect on surimi gel strength, surimi protein content and surimi water content, but had no significant effect on Oreochromis niloticus and Clarias batrachus. Based on the chemical analysis results, all raw materials for surimi have met the standard of SNI 01-2694-2013 except for Pangasius pangasius surimi protein (11,94%). Different raw materials of surimi had a significant effect on the appearance, taste, color, and texture of the organoleptic test. However, it had no significant effect on the chikuwa aroma parameters. Chikuwa (P1) produced the best characteristics from an organoleptic.

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Swarup, Krishna, Shyan P. Srivastav, Sunil K. Srivastav und Ajai K. Srivastav. „Corpuscles of Stannius of freshwater catfish, Clarias Batrachus“. Boletim de Zoologia 10, Nr. 10 (26.10.1986): 41. http://dx.doi.org/10.11606/issn.2526-3358.bolzoo.1986.122339.

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O presente artigo estuda o número, localização e estrutura citológica dos corpúsculos de Stannius do bagre de água doce Clarias batrachus. Ocorre apenas um tipo celular e as células são eosina +, AF + e PAS +.

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Ng, Ee Leng, Norfarhan Mohd Assaad, Herryawan Ryadi Eziwar Dyari, Mohd Shazrul Fazry Sa’ariwijaya und Nur Hidayah Jamar. „Mengenalpasti Kepelbagaian Spesies Hidupan Akuatik Menggunakan Analisis Taksonomi di Tasik Ghazali, UKM“. Malaysian Applied Biology 51, Nr. 5 (26.12.2022): 179–85. http://dx.doi.org/10.55230/mabjournal.v51i5.2357.

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Kajian mengenai kepelbagaian hidupan akuatik air tawar adalah penting untuk memelihara dan memulihara ekosistem mereka. Pelbagai pembangunan infrastruktur telah dijalankan di sekitar kawasan UKM sejak kebelakangan tahun ini boleh menjejaskan keseimbangan ekosistem dan kawasan persekitaran tersebut. Tujuan kajian ini dilakukan adalah untuk mengenalpasti taburan hidupan akuatik di Tasik Ghazali, UKM yang ditangkap menggunakan tiga alatan tangkapan ikan aktif dan pasif. Sebanyak 1,268 sampel hidupan akuatik air tawar berjaya dikumpulkan pada lima aktiviti persampelan yang berbeza. Hasil pencerapan morfologi mengkategorikan hasil tangkapan ini kepada lapan spesies iaitu Poecilia reticulata, Gambusia affinis, Puntius sp., Betta pugnax, Clarias batrachus, Macrobrachium lanchesteri, Macrobrachium malayanum dan Gyraulus sp.. Daripada jumlah ini, spesies ikan yang paling banyak ditangkap adalah Puntius sp.(464) manakala Clarias batrachus merupakan spesies ikan yang paling kurang ditangkap (7). Akhir sekali, jumlah tangkapan hidupan akuatik lain adalah Macrobrachium sp. (294) dan Gyraulus sp. (7).

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Sahalan, Ahmad Zorin, Engku Sharmila und Nazahiyah Sulaiman. „The Epidermal Mucus Extract of Clarias Batrachus Inhibits Gram Negative Bacteria Growth“. Jurnal Sains Kesihatan Malaysia 16, si (15.01.2018): 83–87. http://dx.doi.org/10.17576/jskm-2018-12.

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Sahalan, Ahmad Zorin, Sharmila Engku und Nazahiyah Sulaiman. „The Epidermal Mucus Extract of Clarias Batrachus Inhibits Gram Negative Bacteria Growth“. Jurnal Sains Kesihatan Malaysia 16, Special Issue (15.01.2018): 83–87. http://dx.doi.org/10.17576/jskm-2018-16si-12.

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Prasad, Archana, und Rukmini Puri. „Agave americana (Ketuke) toxicity in the kidney of Clarias batrachus“. Journal of Natural History Museum 30 (01.12.2018): 244–47. http://dx.doi.org/10.3126/jnhm.v30i0.27573.

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Different parts of plant have been used since many decades by humans for catching fishes. In this investigation, ‘ketuke ‘leaf effect was observed on behavioral change and histological alterations in the kidney of Clarias batrachus. Few fishes were kept as control i.e. not exposed to plant piscicide. The other fishes were exposed to 3gm per 30 liters of water for 24 and 48 hrs. In exposed fish’s restlessness, vigorous movement, excessive secretion of slime and loss of appetite was seen. Histologically, glomerular contraction, clumping of melanomacrophages, degeneration of epithelial tissue along with the degeneration of renal tubules and others were seen. Increase in the Bowman’s space was one of the noticeable changes. Extract accumulation was seen in the tissues. Exposure to sub lethal concentrations of Ketuke (Agave americana), caused duration dependent histopathological alterations in the kidney of Clarias batrachus which is discussed in the paper.

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Bari, SM, SMI Khalil, MAA Mamun, MJ Islam, MA Baten und MM Hossain. „Seasonal Variation in Population Dynamics of Helminth Parasites in Clarias batrachus from Natural wetlands of Sylhet, Bangladesh“. International Journal of Natural Sciences 5, Nr. 2 (31.07.2016): 86–89. http://dx.doi.org/10.3329/ijns.v5i2.28617.

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A year round field investigations were conducted with the aim to examine the seasonal variation in population dynamics of helminth parasites in Clarias batrachus from different natural aquatic habitat of north-eastern region of Bangladesh, Sylhet. This article summarizes the percentage of prevalence, mean intensity, abundance and index of infestation of helminth parasites in the C. batrachus during different months and seasons of the year in accordance with temperature, humidity and rainfall. The investigation period were categorized into four seasons i.e. pre-monsoon (February-April), monsoon (May-July), post-monsoon (August- October) and winter (November- January). A total 180 C. batrachus host individuals were examined and among them 139 (67.87%) specimens were found to be infested with 2205 individuals of parasites of three different groups namely trematode, cestode and nematode. Almost (100%) prevalence of helminth infestation were recorded from both male and female C. batrachus during the winter (Nov-Jan), followed by (Feb-April) pre-monsoon (66.67-86.67%) and (Aug-Sep) post-monsoon (66.67-80.00%) while lowest (53.33-60.00%) in monsoon or rainy season (May-July). Lower range of environmental temperature (21.0525.050C), associated with moderate humidity (62.00-64.00%) and scarcity of rainfall increases the intensity of helminthes parasitic infestation in C. batrachus. In consistent to this, with the gradual increasing in ambient temperature (28.01- 30.010C) and humidity (75.00-89.00%) associated with moderate rainfall (33.40-790.90 mm) declining the intensity of helminthes infestation in C. batrachus of the study area.International Journal of Natural Sciences (2015), 5(2) 86-89

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Wibowo, Risky Hadi, Welly Darwis, Sipriyadi Sipriyadi, Reza Wahyuni, Dhea Amelia Sari, Elsi Silvia, Aulia Adriansyah, Aldy Trianda und Redo Setiawan. „Potency of Ketapang (Terminalia catappa L.) Leaves Methanol Extract Against Pathogenic Bacteria of Catfish (Clarias batrachus L.)“. JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS 8, Nr. 1 (07.03.2022): 82–92. http://dx.doi.org/10.36987/jpbn.v8i1.2475.

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Ikan lele (Clarias batrachus L.) merupakan salah satu spesies penting sebagai komoditas air tawar di Indonesia dengan produksi yang terus meningkat setiap tahunnya. Namun, ikan lele rentan terhadap beberapa infeksi bakteri, terutama bila dipelihara dalam kondisi kepadatan tinggi, salah satunya oleh bakteri patogen Bacillus cereus. Banyak sumber bahan baku lokal yang dapat dimanfaatkan sebagai pakan ikan untuk mengatasi masalah tersebut dan mengatasi penyakit yang muncul pada budidaya ikan, salah satunya adalah tanaman tradisional ketapang (Terminalia catappa L.) yang merupakan tanaman yang memiliki potensi sebagai zat antibakteri. Tujuan penelitian ini untuk mengetahui dan menguji aktivitas antibakteri ekstrak daun ketapang (T. catappa L.) terhadap bakteri patogen B. cereus dari isolat hati ikan lele (Clarias batrachus L.) penyebab penyakit pada budidaya. Metode yang digunakan yaitu maserasi dengan pelarut metanol perbandingan 1:10 yang dimaserasi 7 x 24 jam. Uji aktivitas antibakteri dengan metode cakram difusi dengan konsentrasi 45%, 52,5%, 60%, 67,5%, dan 75%. Hasil uji aktivitas antibakteri ekstrak daun ketapang mampu menghambat pertumbuhan bakteri B. cereus pada konsentrasi 45% dengan rata-rata diameter zona hambat sebesar 13,51 mm (kategori kuat). Dari hasil yang diperoleh, dapat disimpulkan bahwa ekstrak daun ketapang memiliki kemampuan dalam menghambat pertumbuhan bakteri patogen B. cereus penyebab penyakit pada hati ikan lele (C. batrachus L.)

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Lal, Sudhir Kumar. „Comparison of helminth infection between the sexes of Clarias batrachus (LINN.) from Rupandehi, Nepal“. International Journal of Applied Sciences and Biotechnology 1, Nr. 2 (15.06.2013): 71–73. http://dx.doi.org/10.3126/ijasbt.v1i2.8197.

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One hundred and twenty specimens of catfish Clarias batrachus were examined for parasites. They comprise sixty specimens each of males and females. 25(41.67%) males and 25(41.67%) females showed parasitic infection. A total of seventy six intestinal helminthes belonging to three taxonomic groups were recovered. They are cestodes – Lytocestus indicus, Pseudocaryophyllaeus clariae; nematodes – Paracamallanus sp., Procamallanus cancilus and acanthocephalan – Acanthocentis sp. Of these, twenty nine were recovered from males and forty seven from females. Total prevalence of infection was the same for both sexes but total intensity of infection was different. There was no statically significant difference in the infection between the two sexes.DOI: http://dx.doi.org/10.3126/ijasbt.v1i2.8197 Int J Appl Sci Biotechnol, Vol. 1(2): 72-74

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Juswono, Unggul P., Kusharto Kusharto, Yeni Cahyadi und Risalatul Latifah. „Insecticide Effects on Membrane Potential of Catfish Egg Cell (Clarias batrachus)“. Natural-B 1, Nr. 3 (01.04.2012): 248–53. http://dx.doi.org/10.21776/ub.natural-b.2012.001.03.9.

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Han, Chong, Qiang Li, Junqiu Xu, Xiufeng Li und Jianrong Huang. „Characterization of Clarias gariepinus mitochondrial genome sequence and a comparative analysis with other catfishes“. Biologia 70, Nr. 9 (01.09.2015): 1245–53. http://dx.doi.org/10.1515/biolog-2015-0145.

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Abstract Clarias gariepinus is an economically important fish belonging to Siluriformes. In order to understand the characterization of catfishes, the complete mitochondrial genome sequence of the African catfish C. gariepinus was determined using 17 pairs of primers. The complete mitogenome is 16,508 bp in length and contains 37 mitochondrial genes (13 protein-coding, two rRNA, and 22 tRNA genes) and a control region as in most other fishes. Moreover, a comparison of C. gariepinus with Clarias batrachus, Clarias fuscus and Clarias sp. NM-2010 indicated that the four mitogenomics were similar in length, total nucleotide compositions and codon usage patterns, but different in 13 protein-coding genes, control region and other aspects. The complete mitochondrial genome sequence of C. gariepinus would contribute to better understanding of population genetics, conservation, biogeography and evolution of this species.

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Islam, Md Sirazul, M. Mamnur Rashid, Mohammad Shamsul Arefin, Pronab Naha und Md Rokanuddula. „Performance of some growth promoters on hybrid walking catfish (Clarias batrachus × Clarias gariepinus)“. Asian Journal of Medical and Biological Research 3, Nr. 1 (14.04.2017): 103–8. http://dx.doi.org/10.3329/ajmbr.v3i1.32044.

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A study was conducted to determine the efficacy of three most commonly used growth promoters from different pharmaceutical companies on growth performance of hybrid walking catfish (Clarias batrachus × Clarias gariepinus). The experiment was done in the wet laboratory of the Department of Aquaculture, BAU, Mymensingh, with a total of 10 aquaria and 160 fish having mean initial weight of 6.3 ± 0.48 g. The three growth promoters, Charger gel from Fishtech (BD) Ltd., Growth gel from Advance Agrotech (BD) Ltd. and Hepaprotect-aqua from Renata Animal health Ltd., were used in separate nine (9) aquaria at recommended, lower dose and higher dose respectively. One aquarium was used as control (diet without any growth promoter). The fish were fed with paragon nursery floating feed at 20% of body weight in each aquarium for 28 days. Doses of Charger gel were given as 80, 60 and 100 mg/20 g feed/day, that of Growth gel, 0.14, 0.12 and 0.16 ml/20 g feed/day and of Hepaprotect-aqua, 30, 15 and 50 mg/20 g feed/day. Re-circulatory system was used throughout the experimental period. By applying recommended, lower and higher dose of Charger gel, mean final weights were found as 23.0, 21.9 and 35.9 g; average daily weight gain as 0.60, 0.56 and 1.06 g and specific growth rate (SGR) as 2.01, 1.93 and 2.70% respectively. For Growth gel, mean final weights were found as 22.8, 17.3 and 31.1 g; average daily weight gain as 0.59, 0.39 and 0.88 g and SGR as 1.99, 1.57 and 2.48 % respectively. For Hepaprotect-aqua, mean final weights were found as 24.2, 17.5 and 28.2 g; average daily weight gain as 0.64, 0.40 and 0.78 g and SGR as 2.09, 1.58 and 2.32% respectively. In all the cases survival rates were 100%. All the three growth promoters showed better results at their higher doses in comparison to their results in lower and recommended doses. However, in average Charger gel showed the best result than the other two growth promoters. This information on the efficacy study of growth promoters needs to be disseminated to the farmers for improved fish production.Asian J. Med. Biol. Res. March 2017, 3(1): 103-108

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Singh, Shivani, Abaidya Nath Singh, Rahul Singh und Neeta Raj Sharma. „Heavy Metal Pollution in the Aquatic System and Their Toxicological Effects on Clarias Batrachus“. International Journal of Membrane Science and Technology 10, Nr. 1 (11.10.2023): 496–506. http://dx.doi.org/10.15379/ijmst.v10i1.2613.

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Heavy metal pollution has emerged as a prominent environmental concern, particularly in aquatic ecosystems. This study delves deep into the impact of such pollutants on Clarias batrachus, a species intrinsic to the health and balance of freshwater habitats. By assessing variations in behaviour, physiology, and survival rates, the research underscores the peril these pollutants pose to C. batrachus. Furthermore, the study elucidates various mitigation strategies, emphasizing their significance in not just salvaging the populations of this species but also in reinstating the holistic well-being of our aquatic ecosystems. The findings underscore the urgent need for interdisciplinary interventions to combat the looming threat of heavy metal pollution.

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Gandhewar, S. S., S. B. Zade und S. R. Sitre. „Assessment of toxic potential of three different heavy metals to Clarias batrachus (Linn.) utilizing static acute bioassay“. Journal of Applied and Natural Science 6, Nr. 1 (01.06.2014): 117–20. http://dx.doi.org/10.31018/jans.v6i1.385.

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Acute toxicity bioassay of three different heavy metals copper (Cu), lead (Pb) and cadmium (Cd) for the freshwater catfish, Clarias batrachus were conducted for evaluation of the toxicity. The 96h LC50 values recorded for Cu, Pb and Cd were 15 ppm, 29 ppm and 35 ppm respectively. The results of this study indicate that the order of toxicity of these heavy metals is Cu>Pb>Cd in short duration acute toxicity experiments. The toxicity was found to be dependent on dose and duration of experiment for all these heavy metals. Cu was found to be much more toxic than Pb and Cd to C. batrachus.

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Laboni, NN, KJ Chandra und MS Chhanda. „Effects of caryophyllaeid cestode infestations of Clarias batrachus (Linn.)“. Journal of the Asiatic Society of Bangladesh, Science 38, Nr. 2 (06.07.2013): 135–44. http://dx.doi.org/10.3329/jasbs.v38i2.15594.

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Effects of caryophyllaeid cestode infestations on Clarias batrachus was conducted during the period from August 2010 to July 2011. Fish samples collected from K.R. market, BAU campus came from various waterbodies. Sex, total length (cm), standard length (cm), head length (cm) and weight (g) were recorded. Five different species of caryophyllaeid namely Djombangia penetrans, Lytocestus indicus, L. birmanicus, L. parvulus and Bovienia serialis were identified from the host. Severe infestations of caryophyllaeid cestodes were found in C. batrachus. Changes in the nature of growth and loss of weight as a result of parasitic infestation were noticed. Accordingly length, weight and condition factors were found to be greatly affected. Loss of total length (8.73%) and the highest loss of mean head length (4.49%) were found in smaller infested length group fish. Loss of weight (1.63%) and the highest percentage loss of weight (26.38) were noticed in the small length group while it was 7.44 in large length group. The highest condition factor (1.13) was found in uninfested fish and lowest (0.85) in infested fish. Suggestions were made for further investigation on blood composition and gonadal development of infested host. DOI: http://dx.doi.org/10.3329/jasbs.v38i2.15594 J. Asiat. Soc. Bangladesh, Sci. 38(2): 135-144, December 2012

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DION, ALDY, MICHELLE CHRISTINA PRAYOGO, HINDRI MUFTI YUANA und HEBERT ADRIANTO. „Kajian Predasi Catfish terhadap Larva Nyamuk Aedes aegypti Sebagai Upaya Pencegahan Penyebaran Demam Berdarah Dengue“. Hang Tuah Medical Journal 19, Nr. 1 (29.11.2021): 41–53. http://dx.doi.org/10.30649/htmj.v19i1.64.

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Aedes aegypti acts as a primary vector of the dengue virus which causes Indonesia to become a dengue-endemic country. Chemical and physical vector control methods to prevent the spread of DHF are considered less effective so that additional biological vector control is needed. The purpose of this paper is to examine the potential ability of catfish predation as Ae. aegypti vector controller. This paper was prepared by reviewing eight Indonesian research journals, eight international research journals, reports and regulations of the Ministry of Health of the Republic of Indonesia, the website of the World Health Organization (WHO), the Centers for Disease Control and Prevention (CDC), the University of Florida Entomology and Nematology, and one textbook. The results showed that the predation ability of African sharptooth catfish (Clarias garipenus) was 80.3% greater on average than Cyprinus carpio, Ctenopharyngodon idella, and Oreochromis niloticus as well as the predation ability of Walking catfish (Clarias batrachus) with an average of 79.6%. larger than Anabas testudineus, Oreochromis niloticus, and Poecilia reticulata. Further experimental research to deepen scientific information on the predation ability of various catfish species against Ae. aegypti mosquito larvae are still needed. Cooperation between fields and communities is also needed to prevent the spread of dengue disease properly. Mosquito larvae eating fish belonging to catfish species, namely African sharptooth catfish (Clarias garipenus) and walking catfish (Clarias batrachus) have the potential to be a new biological vector controller because they have very high predation power compared to other mosquito larvae eating fish.

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Mittal, Neetu. „A New Species of Caryophyllaeidae Tapeworm Pseudolytocestus Hunter, 1929 (Cestode) from Freshwater Catfish Clarias batrachus (Linn.) in Eastern Uttar Pradesh“. Scientific Temper 13, Nr. 02 (12.12.2022): 46–48. http://dx.doi.org/10.58414/scientifictemper.2022.13.2.07.

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During the course of study on morphotaxonomical studies of helminth parasites of economicallyimportant vertebrates of eastern Uttar Pradesh, the author collected many new and known formsof different genus of helminth parasites. This paper deals with a new species of the cestodegenus Pseudolytocestus Hunter, 1929. from the intestine of a piscian host Clarias batrachus(Linn.).

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Rabegnatar, I. Nengah Sweta, und Evi Tahapari. „FORMULASI PAKAN LENGKAP UNTUK PEMBESARAN BENIH LELE (Clarias batrachus)“. Jurnal Penelitian Perikanan Indonesia 8, Nr. 2 (20.03.2017): 31. http://dx.doi.org/10.15578/jppi.8.2.2002.31-43.

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Mahurpawa, Manju. „Behavioral Changes in Clarias batrachus Exposed to Lead Nitrate“. International Journal of Pure & Applied Bioscience 4, Nr. 3 (30.06.2016): 188–92. http://dx.doi.org/10.18782/2320-7051.2292.

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Argungu, L. A., A. Christianu, S. M. N. Amin, S. K. Daud, S. S. Siraj und M. Aminur Rah. „Asian Catfish Clarias batrachus (Linnaeus, 1758) Getting Critically Endangered“. Asian Journal of Animal and Veterinary Advances 8, Nr. 2 (15.02.2013): 168–76. http://dx.doi.org/10.3923/ajava.2013.168.176.

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Sahoo, Sangram Ketan, Shiba Shankar Giri und Suresh Chandra. „Threatened fishes of the world: Clarias batrachus (Linn. 1758)“. Environmental Biology of Fishes 88, Nr. 1 (25.02.2010): 85–86. http://dx.doi.org/10.1007/s10641-010-9627-8.

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Tokriya, R. K., und K. Billore. „HEMATOLOGICAL CHANGES INDUCED BY IMIDACLOPRID IN CLARIAS BATRACHUS (MAGUR)“. International Journal of Advanced Research 12, Nr. 01 (31.01.2024): 546–55. http://dx.doi.org/10.21474/ijar01/18153.

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Imidacloprid is a Neonicotinoid pesticide extensively utilized in Indian agriculture to manage insect pests.Its water solubility and systemic nature are widely acknowledged to present a risk of contaminating adjacent water bodies.The main objective of this study was to evaluate the effects of Imidacloprid pesticide on the hematological parameters of Clarias batracus. In a controlled experimental setting, various sub-lethal concentrations (3, and 4 ppm) of Imidacloprid were administered at different time intervals. The impact of the pesticide was more pronounced in the short-term experiments. Hematological alterations were observed in the fish blood, where the hemoglobin (Hb), Red blood cells (RBCs), Packed cell volume (PCV), Mean corpuscular volume (MCV) and Mean Corpuscular Haemoglobin(MCH) declined with increasing concentrations, while the white blood cells (WBCs) increased under the same conditions.The results demonstrate statistical significance at the P < 0.05 level. These findings demonstrate that Imidacloprid can lead to significant variations in the hematological characteristics and induce a certain level of stress in fish. Therefore, the hematological factors of fish could serve as a sensitive tool for assessing their health status.

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OLUFEAGBA, Samuel O. OL, und Victor Tosin OKOMODA. „PARENTAGE DETERMINATION OF THE HYBRID BETWEEN Clarias batrachus AND Clarias gariepinus USING CYTOCHROME B“. Banat's Journal of Biotechnology VII, Nr. 14 (26.10.2016): 53–59. http://dx.doi.org/10.7904/2068-4738-vii(14)-53.

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Yoretina, Zipora Silka, Anne Handrini Dewi, Hendri Susanto und Heribertus Dedy Kusuma Yulianto. „Kemampuan Pembasahan Saliva Buatan dengan Kandungan Ekstrak Mukus Lele (Clarias batrachus)“. Jurnal Perikanan Universitas Gadjah Mada 23, Nr. 2 (31.12.2021): 133. http://dx.doi.org/10.22146/jfs.62571.

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Xerostomia merupakan keluhan subyektif mulut kering yang sering berhubungan dengan adanya penurunan fungsi kelenjar saliva. Penanganan pasien xerostomia dapat dilakukan dengan pemberian saliva buatan. Mukus lele memiliki karakteristik dan kemampuan dalam menggantikan fungsi saliva, sehingga dengan konsentrasi yang tepat mampu berperan sebagai lubrikan yang baik. Penelitian ini bertujuan untuk mengetahui ada tidaknya kemampuan pembasahan antara saliva manusia dengan saliva buatan yang mengandung mukus lele (Clarias batrachus) pada permukaan hidrofobik. Mukus lele (Clarias batrachus) diekstraksi kemudian diformulasikan menjadi saliva buatan dengan menambahkan 0,1% methylparaben, 0,05% EDTA, 4,69% dekstrosa, dan aqua pro-injection. Pengujian dilakukan dengan mengukur kemampuan pembasahan saliva buatan menggunakan indikator besarnya sudut kontak sampel pada permukaan hidrofobik selama 5 menit. Data yang digunakan merupakan rerata nilai sudut kontak pada kedua sisi tetesan di menit ke-0, 0,5, 1, 1,5, 2, dan 5 yang dianalisis menggunakan aplikasi ImageJ. Hasil independent sample t-test menunjukkan sudut kontak saliva buatan mukus lele lebih kecil daripada saliva manusia (p<0,05) pada pengamatan menit ke-0, 0,5, 1, 1,5, 2, dan 5. Kemampuan pembasahan saliva buatan mukus lele memiliki perbedaan yang signifikan dibandingkan dengan saliva manusia, sehingga saliva buatan ini memberikan fungsi lubrikatif dan protektif yang tidak terlalu menyerupai saliva manusia.

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Jadhav, B. V., D. B. Bhure, N. D. Padwal und S. S. Nanaware. „Population dynamics of Caryophyllidean tapeworms from freshwater fish Clarias batrachus“. Environment Conservation Journal 10, Nr. 3 (21.12.2009): 93–95. http://dx.doi.org/10.36953/ecj.2009.100318.

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The present investigation deals with the population dynamics of Caryophyllidean tapeworms from freshwater fish Clarias batrachus from different places of Western Maharashtra during Jan., 2006 to Dec., 2006. Total 242.00 (57.61%) cestode parasites were recovered from 420.00 fishes. This report summarizes the percentage of incidence, intensity, density and index of infection. The high incidence was occurring in summer season as compared to other season due to the effect of environmental factors.

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