Articles de revues : « Bos gaurus »

1

Ahrestani, Farshid S. « Bos frontalis and Bos gaurus (Artiodactyla : Bovidae) ». Mammalian Species 50, n^o 959 (17 août 2018) : 34–50. http://dx.doi.org/10.1093/mspecies/sey004.

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Duc, Le Hoang, Pham Thanh Tung, Nguyen Trung Nam, Chu Hoang Ha, Le Xuan Tham et Le Van Son. « STUDY ON INSPECTION OF THE PUTATIVE HYBRIDS BETWEEN TRACK-LACKING WILD MALE GAUR (BOS GAURUS) AND DOMESTIC FEMALE COW (BOS TAURUS) IN PHUOC BINH NATIONAL PARK, VIETNAM ». Vietnam Journal of Biotechnology 15, n^o 4 (14 décembre 2018) : 633–40. http://dx.doi.org/10.15625/1811-4989/15/4/13403.

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Hybridization between wild and domestic bovine occurs widely due to the overlapping of the natural habitat of the wild and human farm animals. Due to the loss of habitat, the number of wild gaur (Bos gaurus) in Vietnam was in serious decline. Since 2009, a male wild gaur (Bos gaurus) has appeared and incorporated with female domestic cows (Bos taurus) in buffer zone Phuoc Binh National Park, on the border with Lam Dong and Ninh Thuan provinces. Then, several calves were born that carried some traits of wild gaur including physical characteristics and behaviors. These calves were supposed to be offspring between wild gaur and domestic cows. In previous study, the karyotypes of putative calves were identified with 2n = 58 and non-homologous chromosome 28 and 29 in these hybrids. In this study, we characterized the putative hybrids between track-lacking Bos gaurus and Bos taurus for breeding and preservation using Cytochrome b analysis, microsatellites and a novel marker growth hormone factor 1 (POU1F1). Cytochrome b analysis indicated the maternal lineage of the putative hybrids, with 100% nucleotide sequence identity. Microsatellite BM861 and sequence of ZFY gene region reveal Bos taurus chromosome Y origin was among the male putative hybrids. Importantly, the analysis of POU1F1 gene sequence on 1 chromosome showed efficacy in determining both Bos gaurus and Bos taurus lineage in the putative hybrids. The karyotyping results were confirmed by molecular analysis and our results provide a feasible way for detecting the putative hybrids between wild and domestic cattle in case of lacking the wild trace.

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Conry, Paul J. « Gaur Bos gaurus and development in Malaysia ». Biological Conservation 49, n^o 1 (1989) : 47–65. http://dx.doi.org/10.1016/0006-3207(89)90112-2.

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Farah, Sameera, Ashwin Atkulwar, Rakshanda Nahid, Yashashree Gadhikar et Mumtaz Baig. « Recent population expansion in wild gaur (Bos gaurus gaurus) as revealed by microsatellite markers ». Mammalian Biology 101, n^o 5 (8 juillet 2021) : 695–707. http://dx.doi.org/10.1007/s42991-021-00145-y.

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Hopkins, Steven M., Douglas L. Armstrong, Sharon K. C. Hummel et Sarah. « Successful Cryopreservation of Gaur (Bos gaurus) Epididymal Spermatozoa ». Journal of Zoo Animal Medicine 19, n^o 4 (1988) : 195. http://dx.doi.org/10.2307/20094887.

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Atkulwar, Ashwin, Sameera Farah, Yashashree Gadhikar et Mumtaz Baig. « Mitochondrial DNA diversity in wild gaur (Bos gaurus gaurus) : evidence from extant and historical samples ». Mitochondrial DNA Part B 5, n^o 2 (25 mars 2020) : 1556–60. http://dx.doi.org/10.1080/23802359.2020.1742589.

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Mamat-Hamidi, K., M. Hilmi, I. Idris, D. Di Berardino et L. Iannuzzi. « Chromosome evolution of the Malayan gaur (Bos gaurus hubbacki) ». Caryologia 65, n^o 1 (mars 2012) : 34–39. http://dx.doi.org/10.1080/00087114.2012.678085.

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Tyler, Jeff W., Donald G. Cheatham, George D'Andrea, Joseph S. Spano, Craig Flickinger et Michael Schwitala. « Malignant catarrhal fever in a gaur (Bos gaurus) cow ». Journal of the American Veterinary Medical Association 203, n^o 2 (15 juillet 1993) : 226–29. http://dx.doi.org/10.2460/javma.1993.203.02.226.

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Parida, Sangram, S. K. Sajan, S. Debata, G. C. Das, S. D. Rout et H. K. Sahu. « Group Size and Age-sex Composition of Gaur (Bos gaurus) in Kuldhia Wildlife Sanctuary, Eastern Ghats, India ». AMBIENT SCIENCE 2, n^o 2 (octobre 2015) : 25–30. http://dx.doi.org/10.21276/ambi.2015.02.2.ra03.

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Khaewphakdee, Supawat, Achara Simcharoen, Somphot Duangchantrasiri, Vijak Chimchome, Saksit Simcharoen et James L. D. Smith. « Weights of gaur ( Bos gaurus ) and banteng ( Bos javanicus ) killed by tigers in Thailand ». Ecology and Evolution 10, n^o 11 (16 avril 2020) : 5152–59. http://dx.doi.org/10.1002/ece3.6268.

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AHRESTANI, Farshid S., Subramaniam IYER, Ignas M. A. HEITKÖNIG et Herbert H. T. PRINS. « Life-history traits of gaur Bos gaurus : a first analysis ». Mammal Review 41, n^o 1 (20 octobre 2010) : 75–84. http://dx.doi.org/10.1111/j.1365-2907.2010.00166.x.

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Dindot, Scott V., Peter W. Farin, Charlotte E. Farin, Juan Romano, Shawn Walker, Charles Long et Jorge A. Piedrahita. « Epigenetic and Genomic Imprinting Analysis in Nuclear Transfer Derived Bos gaurus/Bos taurus Hybrid Fetuses1 ». Biology of Reproduction 71, n^o 2 (1 août 2004) : 470–78. http://dx.doi.org/10.1095/biolreprod.103.025775.

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Chaveerach, Arunrat, Wanpen Kakampuy, Alongkoad Tanomtong et Wiwat Sangpakdee. « New Robertsonian Translocation Chromosomes in Captive Thai Gaur (Bos gaurus readei) ». Pakistan Journal of Biological Sciences 10, n^o 13 (15 juin 2007) : 2185–91. http://dx.doi.org/10.3923/pjbs.2007.2185.2191.

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Lanza, Robert P., Jose B. Cibelli, Francisca Diaz, Carlos T. Moraes, Peter W. Farin, Charlotte E. Farin, Carolyn J. Hammer, Michael D. West et Philip Damiani. « Cloning of an Endangered Species (Bos gaurus) Using Interspecies Nuclear Transfer ». Cloning 2, n^o 2 (8 octobre 2000) : 79–90. http://dx.doi.org/10.1089/152045500436104.

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Sekar, Mahadevan, Thangavel Rajagopal et Govindaraju Archunan. « Influence of Zoo Visitor Presence on the Behavior of Captive Indian Gaur (Bos gaurus gaurus) in a Zoological Park ». Journal of Applied Animal Welfare Science 11, n^o 4 (18 septembre 2008) : 352–57. http://dx.doi.org/10.1080/10888700802330093.

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Sankar, K., H. S. Pabla, C. K. Patil, Parag Nigam, Qamar Qureshi, B. Navaneethan, Manas Manjreakar, Preeti S. Virkar et Krishnendu Mondal. « Home Range, Habitat Use and Food Habits of Re-Introduced Gaur (Bos Gaurus Gaurus) in Bandhavgarh Tiger Reserve, Central India ». Tropical Conservation Science 6, n^o 1 (mars 2013) : 50–69. http://dx.doi.org/10.1177/194008291300600108.

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CHOUDHURY, B., R. MAZUMDER et A. BHATTACHARYA. « Foot and mouth disease in gayals (Bos gaurus frontalis) in Calcutta Zoo ». Revue Scientifique et Technique de l'OIE 11, n^o 3 (1 septembre 1992) : 797–98. http://dx.doi.org/10.20506/rst.11.3.618.

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CHOUDHURY, ANWARUDDIN. « Distribution and conservation of the Gaur Bos gaurus in the Indian Subcontinent ». Mammal Review 32, n^o 3 (septembre 2002) : 199–226. http://dx.doi.org/10.1046/j.1365-2907.2002.00107.x.

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Ding, Chenchen, Yiming Hu, Chunwang Li et Zhigang Jiang. « Distribution and habitat suitability assessment of the gaur Bos gaurus in China ». Biodiversity Science 26, n^o 9 (2018) : 951–61. http://dx.doi.org/10.17520/biods.2018012.

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Srinivasulu, C. « The Gaur Bos gaurus Smith, 1827 in Kawal Wildlife Sanctuary, Andhra Pradesh ». Zoos' Print Journal 18, n^o 2 (21 janvier 2003) : 1025–26. http://dx.doi.org/10.11609/jott.zpj.18.2.1025-6.

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MD-ZAIN, BADRUL MUNIR, AQILAH ABDUL-AZIZ, NUR SYAFIKA MOHD-YUSUF, ROSLI NORSYAMIMI, JEFFRINE JAPNING ROVIE-RYAN et KAYAL VIZI KARUPPANNAN. « Sequence variation of captive Malayan Gaur (Bos gaurus hubbacki) based on mitochondrial D-loop region DNA sequences ». Biodiversitas Journal of Biological Diversity 19, n^o 5 (21 septembre 2018) : 1601–6. http://dx.doi.org/10.13057/biodiv/d190501.

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Md-Zain BM, Abdul-Aziz A, Aifat NR, Mohd-Yusof NS, Norsyamimi R, Rovie-Ryan JJ, Karuppannan KV, Zulkifli NA, YaakopS. 2018. Sequence variation of captive Malayan Gaur (Bos gaurus hubbacki) based on mitochondrial D-loop region DNA sequences.Biodiversitas 19: 1601-1606. Malayan gaur (Bos gaurus hubbacki) can only be found in Peninsular Malaysia and southern Thailand.The International Union for Conservation of Nature (IUCN) has listed Malayan gaur in the Red List as vulnerable. The main objectiveof this study was to investigate sequence variation in the mitochondrial D-loop region of B. g. hubbacki from two captive centers. Wecollected 30 DNA samples of Malayan gaur from Jenderak Selatan Wildlife Conservation Center in Pahang and the Sungkai WildlifeReserve in Perak. Polymerase chain reactions were performed to amplify all the samples. DNA sequences were analyzed usingNeighbor-Joining (NJ) and Maximum Parsimony (MP) methods. Based on the 652 base pairs obtained, we found only seven variablecharacters with a value of 1% and a genetic distance between the two captive centers of 0.001. Haplotype analyses using DnaSPsoftware detected only four haplotypes between these two captive centers. Both NJ and MP trees portrayed all Malayan gaur individualsin Jenderak Selatan and Sungkai captive centers as belonging to the same clade. Genetic variation of Malayan gaur in these centers isconsidered low due to individuals possibly sharing the same common parent. This sequence variation information is of paramountimportance for the proper breeding and conservation management program of Malayan gaur in the future.

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Khadka, N. B., P. Acharya et C. N. Chaudhary. « Ecology and conservation of Bos gaurus in Belaka forest of Udaypur District, Nepal ». Banko Janakari 7, n^o 2 (28 août 2017) : 39–42. http://dx.doi.org/10.3126/banko.v7i2.18114.

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23

Gad, Suman Digamber, et Soorambail Keshava Shyama. « Diet Composition and Quality in Indian Bison (Bos gaurus) Based on Fecal Analysis ». Zoological Science 28, n^o 4 (avril 2011) : 264–67. http://dx.doi.org/10.2108/zsj.28.264.

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Rosli, Norsyamimi, Frankie Thomas Sitam, Jeffrine Japning Rovie-Ryan, Han Ming Gan, Yin Peng Lee, Hartini Ithnin, Millawati Gani, Mohd Firdaus Ariff Abdul Razak, Badrul Munir Md-Zain et Mohd Tajuddin Abdullah. « The complete mitochondrial genome of Malayan Gaur (Bos gaurus hubbacki) from Peninsular Malaysia ». Mitochondrial DNA Part B 4, n^o 2 (3 juillet 2019) : 2535–36. http://dx.doi.org/10.1080/23802359.2019.1640085.

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Srikosamatara, Sompoad. « Density and biomass of large herbivores and other mammals in a dry tropical forest, western Thailand ». Journal of Tropical Ecology 9, n^o 1 (février 1993) : 33–43. http://dx.doi.org/10.1017/s026646740000691x.

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ABSTRACTDensity and biomass of four ungulate species, elephant (Elephas maximus) and seven other mammal species were estimated in an area of about 50 km2 in a dry tropical forest in Huai Kha Khaeng Wildlife Sanctuary, western Thailand. Density estimations employed line transects, using either direct sightings or indirect signs. Total biomass of these ungulates and elephant was 1450 kg km–2 which was lower than that found in a well protected and managed area of similar forest, Nagarahole National Park, in India. This is due to the intensive poaching activity and the lack of wildlife management in this study site. Three species of ungulate, banteng (Bos javanicus), gaur (Bos gaurus) and sambar deer (Cervus unicolor), contributed over 70% of the estimated herbivore biomass. This situation is similar to that found in other parts of Asia. The high biomass of a subterranean mammal, Cannomys badius, has not been documented elsewhere in Asia; this species probably influences the forest dynamics and ecology of small carnivores in this area.

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Napier, Julia E., Naida M. Loskutoff, Lee G. Simmons et Douglas L. Armstrong. « Comparison of Carfentanil-Xylazine and Thiafentanil- Medetomidine in Electroejaculation of Captive Gaur (Bos gaurus) ». Journal of Zoo and Wildlife Medicine 42, n^o 3 (septembre 2011) : 430–36. http://dx.doi.org/10.1638/2010-0242.1.

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Riggs, P. K., K. E. Owens, C. E. Rexroad, M. E. J. Amaral et J. E. Womack. « Development and Initial Characterization of a Bos taurus B. gaurus Interspecific Hybrid Backcross Panel ». Journal of Heredity 88, n^o 5 (1 septembre 1997) : 373–79. http://dx.doi.org/10.1093/oxfordjournals.jhered.a023121.

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Soundararajan, Chinnaiyan, Ramakrishnan Ram Narendran, Palavesam Azhahianambi, Bhaskaran Ravi Latha et Kumaresan Nagarajan. « Morphological and molecular identification of Amblyomma integrum collected from an Indian Gaur (Bos gaurus) ». International Journal of Acarology 43, n^o 7 (1 août 2017) : 540–44. http://dx.doi.org/10.1080/01647954.2017.1360390.

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Mukherjee, Sabyasachi, Anupama Mukherjee, Sanjeev Kumar, Harendra Verma, Shivam Bhardwaj, Oshin Togla, Siddhartha Narayan Joardar et al. « Genetic Characterization of Endangered Indian Mithun (Bos frontalis), Indian Bison/Wild Gaur (Bos gaurus) and Tho-Tho Cattle (Bos indicus) Populations Using SSR Markers Reveals Their Diversity and Unique Phylogenetic Status ». Diversity 14, n^o 7 (7 juillet 2022) : 548. http://dx.doi.org/10.3390/d14070548.

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Mithun (Bos frontalis) or gayal and Indian Bison or wild gaur (Bos gaurus) are listed among the rare and endangered bovine species of India. The remote location of mithun in four North Eastern Hill states (Arunachal Pradesh, Nagaland, Manipur, and Mizoram), scattered population size, and non-availability of genetic diversity status are major limitations towards devising a suitable breeding and conservation policy of these species. Since several studies have demonstrated the successful applicability of microsatellite/SSR markers across related genera/families in both crop plants and animal species, 30 FAO recommended cattle microsatellites were utilized for the assessment of the genetic diversity of Indian mithun, bison, and local Tho-tho cattle. Mitochondrial transmembrane protein coding cytochrome B (CYTB) complete sequence data of 71 bovine samples from India were also used to reinforce the study. Population structuring clustered the all bovines into three subgroups as per geographical location and species. Bottleneck analysis indicated a mode shift in the allelic frequency distribution of gaur, indicating minor genetic bottleneck events in the past, while no bottleneck was found in mithun and Tho-tho cattle. To our knowledge, this study represents the first report of molecular genetic characterization showing the population structure and status of genetic diversity in rare Indian bovines, namely, Mithun, Gaur, and Tho-tho cattle.

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Srirattana, K., C. Laowtammathron, R. Devahudi, S. Imsoonthornruksa, A. Sangmalee, W. Tunwattana, C. Lorthongpanich et al. « 52 EFFECT OF TRICHOSTATIN A ON DEVELOPMENTAL POTENTIAL OF INTER-SPECIES CLONED GAUR (BOS GAURUS) EMBRYOS ». Reproduction, Fertility and Development 21, n^o 1 (2009) : 126. http://dx.doi.org/10.1071/rdv21n1ab52.

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This study was carried out to investigate the effect of trichostatin A (TSA) treatment on interspecies cloned gaur (Bos gaurus) embryos development and implantation rate after transfer to bovine (Bos taurus) recipients. The bovine (Bos taurus) enucleated oocytes were used as recipient cytoplasm for male and female gaur fibroblasts. After electrical fusion, oocytes were separated into two groups, TSA treatment and control. For the TSA group, the oocytes were placed in EmCare (ICPbio, Ltd., Auckland, New Zealand) holding medium + 50 nm TSA for 1 h. The fused oocytes were activated by 7% ethanol + 50 nm TSA for 5 min at room temperature and 10 μg mL–1 cycloheximide + 1.25 μg mL–1 cytochalasin D + 50 nm TSA at 38.5°C under 5% CO2 in air for 5 h. Then the embryos were cultured in mSOFaa medium + 3 mg mL–1 bovine serum albumin (BSA) + 50 nm TSA up to 10 h. After 10 h, the reconstructed embryos were transferred to embryo culture medium without TSA and culture for 2 days at 38.5°C under 5% CO2, 5% O2, 90% N2. The control embryos were cultured with the same culture system without TSA supplementation. Eight-cell stage embryos were selected and co-cultured with bovine oviductal epithelial cells in culture medium at 38.5°C under 5% CO2 in air for 5 days. Half volume of the culture medium was replaced daily. Two blastocysts at days 7 or 8 derived from male fibroblasts of treated and non-treated TSA were non-surgically transferred to each synchronized estrous bovine recipients. The statistical analysis was done by ANOVA and the comparison of means by Duncan’s Multiple Range Test (DMRT). The development to blastocyst stage was not different among male and female, treated and non-treated TSA embryos which range between 34.8 to 39.3%. The pregnancy rate at 40 days after recipients received cloned embryos derived from male fibroblasts treated v. non-treated TSA was 11% (2/18) v. 10% (1/10) (Table 1). One recipient which received a non-treated embryo gave birth by C-section on March 4, 2008. The male gaur calf died from respiratory problem at 12 h after birth. Eight bovine microsatellite markers analysis confirmed that the newborn gaur was derived from the donor gaur fibroblast. In this study, TSA has no effect on pre-implantation cloned gaur embryos development either derived from male or female gaur fibroblasts. Cloned gaur calves could be produced by interspecies cloning using bovine oocytes as recipient cytoplasm. Table 1.Pregnancy and birth rates after transferred cloned gaur embryos derived from male fibroblasts to recipients This study was supported by National Center for Genetic Engineering and Biotechnology (BIOTEC) and Suranaree University of Technology.

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Uma Mahesh, Y., BS Rao, VC Katari, S. Komjeti, D. Christo, U. Lakshmikantan, RM Pawar et S. Shivaji. « Cell Cycle Synchronization of Bison (Bos Gaurus) Fibroblasts Derived from Ear Piece Collected Post-mortem ». Reproduction in Domestic Animals 47, n^o 5 (14 décembre 2011) : 799–805. http://dx.doi.org/10.1111/j.1439-0531.2011.01970.x.

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Mastromonaco, Gabriela F., Gianfranco Coppola, Graham Crawshaw, Dino DiBerardino et W. Allan King. « Identification of the homologue of the bovine Rob(1;29) in a captive gaur (Bos gaurus) ». Chromosome Research 12, n^o 7 (2004) : 725–31. http://dx.doi.org/10.1023/b:chro.0000045800.44911.67.

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Imam, Ekwal, et S. P. S. Kushwaha. « Habitat suitability modelling for Gaur (Bos gaurus) using multiple logistic regression, remote sensing and GIS ». Journal of Applied Animal Research 41, n^o 2 (juin 2013) : 189–99. http://dx.doi.org/10.1080/09712119.2012.739089.

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Iswadi, M., Z. Ann, M. Hafiz, M. Hafiz, F. Fahrul, H. Hajarian, H. Wahid, I. Zawawi et M. Mazni. « Collection, analysis and cryopreservation of semen from Malayan gaur (Bos gaurus hubbacki) : A preliminary study ». Open Veterinary Journal 5, n^o 2 (2012) : 109. http://dx.doi.org/10.5455/ovj.2012.v2.i0.p109.

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The Malayan gaur (Bos gaurus hubbacki) or Seladang is classified as vulnerable by the International Union for Conservation of Nature and Natural Resources (IUCN). The Malayan gaur is mainly distributed in the tropical woodlands of Peninsular Malaysia and Southern Thailand. The aim of this study was to collect, analyze and cryopreserve the semen of wild Malayan gaur. Transrectal massage (TM) and electroejaculation (EEJ) technique was applied in semen collection of the Malayan gaur. The semen was then cryopreserved in liquid nitrogen using slow freezing technique. Makler counting chamber was used to evaluate sperm concentration and motility, while the sperm viability and morphology of fresh and post-thaw sperm was determined using eosin-nigrosin staining protocol. As a result, we have successfully collected the Malayan gaur semen using EEJ technique. Sperm motility, viability and morphological changes of the post-thaw semen of Malayan gaur were found undesirable due to the complication of the cryopreservation process. On the basis of current study it can be concluded that Malayan gaur bulls semen can be obtain by EEJ with no evidence of rectal trauma. Optimization of the process of cryopreservation for Malayan gaur sperm is needed to maintain the cryoviability of the good sperm quality. The data generated in this study would be useful in conservation of genetic diversity program for Malayan gaur.

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Bhandari, Shivish, Mukesh Kumar Chalise et Chiranjibi Prasad Pokharel. « Diet of Bengal Tigers (Panthera tigris tigris) in Chitwan National Park, Nepal ». European Journal of Ecology 3, n^o 1 (26 octobre 2017) : 80–84. http://dx.doi.org/10.1515/eje-2017-0008.

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AbstractWe studied the diet of the Bengal tigers (Panthera tigris tigris) in Chitwan National Park, Nepal, by identifying 109 prey items from 85 tiger scats. Tigers in this region fed upon eight different mammal species. Chital (Axis axis) was the major prey with a frequency of 45% of the Tigers’ diet. The occurrence of other prey species included sambar (Cervus unicolor, 23%), wild pig (Sus scrofa, 15%), hog deer (Axis porcinus, 9%), barking deer (Muntiacus muntjak, 4%), and gaur (Bos gaurus, 2%). Tigers also hunted livestock, but this prey comprised a small component of the relative biomass (buffalo 5% and cow 2%). Our study suggests that the tiger depends mostly upon wild prey for its subsistence in the Chitwan National Park, but will also sporadically hunt livestock.

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Duengkae, Prateep, Nattakan Ariyaraphong, Wanlaya Tipkantha, Waleemas Jairak, Sudarath Baicharoen, Dung Ho My Nguyen, Onjira Korboon et al. « Coincidence of low genetic diversity and increasing population size in wild gaur populations in the Khao Phaeng Ma Non-Hunting Area, Thailand : A challenge for conservation management under human-wildlife conflict ». PLOS ONE 17, n^o 8 (30 août 2022) : e0273731. http://dx.doi.org/10.1371/journal.pone.0273731.

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The gaur (Bos gaurus) is found throughout mainland South and Southeast Asia but is listed as an endangered species in Thailand with a decreasing population size and a reduction in suitable habitat. While gaur have shown a population recovery from 35 to 300 individuals within 30 years in the Khao Phaeng Ma (KPM) Non-Hunting Area, this has caused conflict with villagers along the border of the protected area. At the same time, the ecotourism potential of watching gaurs has boosted the local economy. In this study, 13 mitochondrial displacement-loop sequence samples taken from gaur with GPS collars were analyzed. Three haplotypes identified in the population were defined by only two parsimony informative sites (from 9 mutational steps of nucleotide difference). One haplotype was shared among eleven individuals located in different subpopulations/herds, suggesting very low genetic diversity with few maternal lineages in the founder population. Based on the current small number of sequences, neutrality and demographic expansion test results also showed that the population was likely to contract in the near future. These findings provide insight into the genetic diversity and demography of the wild gaur population in the KPM protected area that can inform long-term sustainable management action plans.

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Dindot, S. V., P. Farin, C. Farin, J. Alexander, E. Crosier, S. Walker, C. Long et J. A. Piedrahita. « 35ANALYSIS OF EPIGENETIC MODIFICATIONS AND GENOMIC IMPRINTING IN NUCLEAR TRANSFER DERIVED BOS GAURUS×B. TAURUS CONCEPTI ». Reproduction, Fertility and Development 16, n^o 2 (2004) : 140. http://dx.doi.org/10.1071/rdv16n1ab35.

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Somatic cell nuclear transfer in cattle is an inefficient process hindered by low pregnancy rates and fetal placental abnormalities. Improper or incomplete epigenetic reprogramming of the donor genome has been implicated as a cause for these aberrations and has been investigated extensively in mice. Here we report the use of a bovine interspecies model (Bos gaurus×B. taurus) for the assessment and characterization of epigenetic modifications and genomic imprinting in 40-day-old female nuclear transfer (NT)-derived fetuses and placentas. Previously, we identified genomic imprinting at the IGF2, GTL2 and XIST loci in the Bos gaurus×B. taurus fetuses. These results indicated maternal and paternal imprinting of the IGF2 and GTL2 loci, respectively, in the chorion, allantois, liver, lung and brain, whereas the XIST locus was maternally imprinted solely in the chorion of females. We extended this analysis to 40-day-old NT fetuses derived from a hybrid lung fibroblast cell line (female). Analysis of the donor cell line indicated conservation of imprinting of the IGF2 and GTL2 loci and bialleic expression of the XIST locus, presumably from the random patterns of X-chromosome inactivation. Analysis of three NT and three control pregnancies indicated disruption of genomic imprinting at the XIST locus in the chorions of all three clones compared to controls. In contrast, proper allelic expression of the IGF2 and GTL2 loci was observed in all fetuses and placentas. Quantification of maternal and paternal XIST transcripts in the chorion of clones and controls demonstrated a significant skewing from preferential paternal expression in controls (95.0±0.882, mean±S.E.) to mixed paternal and maternal expression in clones (73.6±5.2), (t-test; P<0.05). In an attempt to determine the cause for the abnormal allelic expression of the XIST locus in the chorion of the clones, methylation analysis of the XIST Differentially Methylated Region (DMR) was performed. Methylation-sensitive restriction digests and subsequent PCR of the XIST DMR indicated patterns were not different between controls and clones. However, when genome-wide and promoter-specific methylation analysis (bisulfite sequencing) was extended to the satellite I repeat element and epidermal cytokeratin promoter, hypermethylation was observed in the chorion of clones. These results demonstrate disruption of genomic imprinting in XIST locus in the placenta of 40-day-old clones independent of DMR methylation. They also indicate that cloning is associated with increased levels of methylation in selected genomic regions in the chorion.

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Pelden Zangmo, Pelden, Dhan B. Gurung, Letro Letro et Singye Wangmo. « Distribution, Abundance and Occupancy of Gaur (Bos gaurus Smith) in the Royal Manas National Park, Bhutan ». Bhutan Journal of Natural Resources and Development 5, n^o 1 (30 novembre 2018) : 1–12. http://dx.doi.org/10.17102/cnr.2018.01.

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Hamidi, Mamat, I. Idris et M. Hilmi. « Karyotype of Malayan Gaur (Bos gaurus hubbacki), Sahiwal-Friesian Cattle and Gaur x Cattle Hybrid Backcrosses ». Pakistan Journal of Biological Sciences 12, n^o 12 (1 juin 2009) : 896–901. http://dx.doi.org/10.3923/pjbs.2009.896.901.

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Ariffin, N. A. T., M. A. Mustapha, T. M. Taher, N. F. Khodri, N. I. Abdullah et S. M. Nor. « Potential habitat connectivity for Malayan gaur (Bos gaurus) in a fragmented forest area in Peninsular Malaysia ». Journal of Environmental Biology 42, n^o 3(SI) (31 mai 2021) : 798–805. http://dx.doi.org/10.22438/jeb/42/3(si)/jeb-09.

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Aim: To predict the distribution of suitable habitats for Malayan gaur (Bos gaurus) at a highly fragmented forest area in Peninsular Malaysia and to identify the potential connectivity between suitable habitat patches. Methodology: Maximum entropy (MaxEnt) approach was used to predict the distribution of suitable habitats of the Malayan gaur. Gaur presence-only data and six environmental variables were collated for the habitat suitability modeling, and area under curve (AUC) value was used to estimate the performance of the model. The resulting model was then used to derive a potential connectivity map through least-cost analysis using Corridor Designer toolbox in ArcGIS 10.4. Results: The AUC value of the habitat suitability model was 0.84. Distance from urban areas indicated the highest relative contribution to the model (26.9%), followed by distance from water body (24.2%) land use (18.0%) elevation (14.3%), slope (14.0%) and lithology (2.6%). Predicted suitable habitats for gaur were found mostly in lowland forest areas, especially in the vicinity of rivers within forest reserves. A total of five wildland blocks were derived from the habitat suitability model, and several potential corridor swaths were identified connecting the wildland blocks. Interpretation: The absence of gaur occurrence in suitable habitats suggest that fragmented habitats greatly affected gaur distribution and population. Road network and agricultural lands are the major barriers of gaur movement as they are very sensitive towards disturbances and conflict. Thus, this research proposes potential connectivity at a regional scale for Malayan gaur for use in future planning in conservation, management and development.

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Murali, Gopal. « Use of Gaur (Bos gaurus) dung as a foraging site by Sarojamma's Leaping Frog (Indirana sarojamma) ». Reptiles & ; Amphibians 29, n^o 1 (9 janvier 2022) : 59–60. http://dx.doi.org/10.17161/randa.v29i1.16248.

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Johnston, L. A., J. J. Parrish, R. Monson, L. Leibfried-Rutledge, J. L. Susko-Parrish, D. L. Northey, J. J. Rutledge et L. G. Simmons. « Oocyte maturation, fertilization and embryo development in vitro and in vivo in the gaur (Bos gaurus) ». Reproduction 100, n^o 1 (1 janvier 1994) : 131–36. http://dx.doi.org/10.1530/jrf.0.1000131.

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Godfrey, R. W., D. D. Lunstra, J. A. French, J. Schwartz, D. L. Armstrong et L. G. Simmons. « Estrous synchronization in the gaur (Bos gaurus) : Behavior and fertility to artificial insemination after prostaglandin treatment ». Zoo Biology 10, n^o 1 (1991) : 35–41. http://dx.doi.org/10.1002/zoo.1430100105.

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Griffith Michael G. et Joonu J. « Status and Distribution of Indian Gaur (Bos gaurus) in Reserved Forests of Tiruchirappalli, Tamil Nadu, India ». UTTAR PRADESH JOURNAL OF ZOOLOGY 45, n^o 4 (22 février 2024) : 131–36. http://dx.doi.org/10.56557/upjoz/2024/v45i43915.

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The importance of assessing the status and distribution of Gaur becomes vital for conservation. The Indian gaur presence and distribution often goes unnoticed in the reserved forests outside the national parks and sanctuaries, these often lead to human animal conflict, hence the study was designed to find the status and distribution of Indian gaur in reserve forest in Tiruchirappalli district, Tamil Nadu. The nocturnal survey and and line transect method was followed in the study, which resulted in overall Gaur abundance in Trichy district of 1.51 individual/km2 within the Reserved Forest Area in the southern ranges of Trichy that is Thuvarankuruchi and Manaparai. The Gaurs often stray into the human settlements in search of water and food which leads to conflicts between gaurs and humans. There is increasing trend of population of Indian gaur hence there is need of conservation measures in highly prone conflicts areas.

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Velho, Nandini, et William F. Laurance. « Hunting practices of an Indo-Tibetan Buddhist tribe in Arunachal Pradesh, north-east India ». Oryx 47, n^o 3 (juillet 2013) : 389–92. http://dx.doi.org/10.1017/s0030605313000252.

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AbstractHunting is a serious threat to Indian wildlife. We used semi-structured interviews to assess hunting practices, cultural contexts and village-level governance within a Buddhist Indo-Tibetan tribe in the biologically rich region of Arunachal Pradesh. A large majority (96%) of the 50 respondents preferred wild meat over domestic meat, and most hunted for recreation. Species such as the Asian elephant Elephas maximus are still considered taboo to hunters but other species that were once taboo (such as gaur Bos gaurus) are now hunted. A month-long ban was previously instituted to prohibit tribal hunting during the wildlife breeding season each year but this has now decreased to 16-days duration. A multi-level governance framework is needed to resolve a mismatch between national policy in India and grass-roots governance for managing wildlife hunting.

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Simeon, G. N. « Abnormal Head of a Mithun (<i>Bos gaurus</i>) Shot near Dhubri, Assam ». Indian Forester 149, n^o 9 (1 septembre 2023) : 981. http://dx.doi.org/10.36808/if/2023/v149i9/170210.

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Chandranaik, Basavegowdanadoddi Marinaik, Raveendra Hegde, Beechagondahalli Papanna Shivashankar, Papanna Giridhar, Handenahally Kaverappa Muniyellappa, Rajeshwar Kalge, Benamanahalli Raju Sumathi et al. « Serotyping of foot and mouth disease virus and Pasteurella multocida from Indian gaurs (Bos gaurus), concurrently infected with foot and mouth disease and haemorrhagic septicaemia ». Tropical Animal Health and Production 47, n^o 5 (19 avril 2015) : 933–37. http://dx.doi.org/10.1007/s11250-015-0811-x.

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Md-Zain, Badrul Munir, Aqilah Abdul-Aziz, Nor Rahman Aifat, Nur Syafika Mohd-Yusof, Nadiatur Akmar Zulkifli, Jeffrine Rovie Ryan Japning, Norsyamimi Rosli et Salmah Yaakop. « Sequence variation data of the mitochondrial DNA D-loop region of the captive Malayan Gaur (Bos gaurus hubbacki) ». Data in Brief 24 (juin 2019) : 103532. http://dx.doi.org/10.1016/j.dib.2018.11.117.

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Nguyen, Manh Ha. « The status of Vulnerable gaur Bos gaurus and Endangered banteng Bos javanicus in Ea So Nature Reserve and Yok Don and Cat Tien National Parks, Vietnam ». Oryx 43, n^o 01 (janvier 2009) : 129. http://dx.doi.org/10.1017/s0030605307000440.

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Shambhulingappa, Y. B., R. V. Prasad, K. V. Jamuna, H. D. Narayanaswamy, M. Narayana Bhat et V. Ramkrishna. « Histological characteristics of hair follicle pattern in Indian bison (Bos gaurus), black buck (Antelope cervicapra) and nilgai (Boselaphus tragocamelus) ». Veterinary World 7, n^o 3 (mars 2014) : 189–93. http://dx.doi.org/10.14202/vetworld.2014.189-193.

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