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Thematische Bibliographien / Siri Cattle / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Siri Cattle“

Autor: Grafiati

Veröffentlicht am 18. Mai 2024

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1

ROY, RAKESH, RUPASI TIWARI, and TRIVENI DUTT. "Productive and reproductive performance of Siri cattle under field condition in West Bengal." Indian Journal of Animal Sciences 90, no. 11 (2021): 1528–30. http://dx.doi.org/10.56093/ijans.v90i11.111565.

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A study was undertaken with an objective to assess productive and reproductive performance of Siri cattle in West Bengal. The study was conducted among 80 farmers rearing either Siri-Pure or Siri-Graded cattle in the hilly region. Equal numbers of respondents either rearing Siri-Pure or Siri-Graded cattle were randomly selected from Darjeeling and Kalimpong districts for the study. The study on productive performance of Siri-Pure and Siri- Graded cattle shows that mean first lactation milk yield was 469.7 and 497.2 litres, daily milk yield was 3.2 and 3.7 litres, peak milk yield was 3.8 and 4.

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Tantia, M. S., P. K. Vij, RK Vijh, et al. "SIRI: THE CATTLE OF EASTERN HIMALAYAS." Animal Genetic Resources Information 19 (April 1996): 37–43. http://dx.doi.org/10.1017/s1014233900000778.

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SUMMARYA pilot survey was conducted in the western d.istrict of Sikkim to monitor the status of the Siri cattle breed. Data was recorded on certain morphological characters, management practices and performance of Siri animals. Measurements were recorded of body length, heart girth, body height, paunch girth, hip width, pin width, face length, face width, ear length and horns on 89 animals of age groups up to 1 year,1 to 3 years and adult. It was noted that pure Siri animals were reared only in the remote inaccessible areas. Extensive crossbreeding with Jersey semen/bulls is progressively erod

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PUNDIR, R. K., P. K. SINGH, P. S. DANGI, and H. ZELIANG. "Characterisation and evaluation of Tho-Tho cattle of Nagaland." Indian Journal of Animal Sciences 88, no. 4 (2018): 434–37. http://dx.doi.org/10.56093/ijans.v88i4.78810.

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Surveys were conducted in 24 villages of 4 districts of Nagaland, i.e. Kohima, Phek, Zuhneboto and Dimapur to characterise Tho-Tho cattle of Nagaland. A total of 242 cattle of different age and sex including 186 Tho-Tho and 56 desi/non-descript were recorded for physical and ten different morphometric traits. To know management and performance of Tho-Tho cattle, 76 farmers were interviewed form these districts. It was observed that Tho-Tho cattle was mainly reared for beef as people preferred beef over pork. Cattle population of the state showed sharp decline of 51% during the years 2007–2012

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Phanchung and J. A. Roden. "Characterisation of the Siri breed and the Mithun cross Siri in Bhutan." Animal Genetic Resources Information 20 (April 1996): 27–34. http://dx.doi.org/10.1017/s1014233900000857.

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SummaryThe authors describe the evolution, morphological characteristics, body weights, body measurements and production performance of three indigenous cattle breeds in Bhutan, namely the Siri, Mithun cross Siri (Jatsha for male and Jatsham for female) and first backcross hybrids (Yangka for male and Yangkum for female). The data was collected through a sample survey which was conducted in Lobesa block of Thimphu district in April/May 1995 near the Natural Resources Training Institute (NRTI). Observations were recorded from 44 Siri (22 bulls and 22 cows), 10 Mithun cross Siri (5 Jatshas and 5

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Gorkhali, Neena Amatya, Chhiring Sherpa, Aashish Dhakal, et al. "Genetic Diversity of Nepalese Indigenous Cattle Breeds Based on D-Loop Mitochondrial DNA." Nepal Journal of Science and Technology 19, no. 2 (2021): 103–8. http://dx.doi.org/10.3126/njst.v20i1.39440.

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Nepalese cattle are known for their genetic potentiality concerning inhabitant in extreme climatic conditions, surviving in the scarce food supply, and resistant to several diseases. We aimed to assess Nepal’s ancestral origin and genetic diversity of indigenous cattle breeds based on hyper-variable D loop mtDNA sequences. Three cattle breeds (Siri, Achammi, & Lulu) comprising the total sample population (n= 75) were employed in the study where the mt DNA information of two breeds (Achammi & Lulu) were retrieved from the published source. Hyper-variable D loop (910bp) of Siri cattle wa

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Sharma, R., A. K. Pandey, Y. Singh, B. P. Mishra, P. K. Singh, and G. Singh. "Estimation of genetic diversity in Siri cattle from India." Russian Journal of Genetics 44, no. 11 (2008): 1331–37. http://dx.doi.org/10.1134/s1022795408110124.

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Asnawi, Aslina, A. Amidah Amrawaty, and Nirwana Nirwana. "Persepsi Peternak Sapi Potong Terhadap Budaya Lokal Suku Bugis Terkait Aksesibilitas Pembiayaan." Jurnal Agripet 17, no. 2 (2017): 132–38. http://dx.doi.org/10.17969/agripet.v17i2.8070.

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ABSTRAK. Pembiayaan pada peternak sapi potong masih merupakan determinan berkembangnya usaha peternakan.Cukup banyak penilaian yang ditentukan oleh pemberi pinjaman terutama lembaga formal yang menyulitkan peternak untuk mengaksesnya. Namun salah satu penilaian yang melekat pada diri peternak adalah karakter yang baik.Artikel ini menganalisis persepsi peternak sapi potong terhadap budaya lokal suku Bugis dan dikaitkan dengan dengan aksesibilitas pembiayaannya. Hal ini penting mengingat nilai-nilai budaya yang dianut oleh masyarakat sangat menentukan pembentukan karakter seseorang.Karakter perl

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Malewa, Amirudin Dg, and Nur Al Mu'min. "PO Cattle Population Dynamics In Sigi." Jurnal Ilmiah AgriSains 22, no. 3 (2021): 126–35. http://dx.doi.org/10.22487/jiagrisains.v22i3.2021.126-135.

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Penelitian ini bertujuan untuk mengetahui dinamika populasi Sapi PO di Kabupaten Sigi. Metode yang digunakan dalam penelitian ini adalah menggunakan metode survey. Data penelitian diperoleh dari 90 responden yang memelihara Sapi PO di Kecamatan Dolo Induk, Kecamatan Dolo Barat dan Kecamatan Marawola dengan sampel 578 ekor. Teknik pengambilan sampel yang digunakan yaitu metode pruposive sampling pada kecamatan dan metode random sampling pada desa dan peternak di Kabupaten Sigi dimana setiap anggota populasi mempunyai kesempatan yang sama untuk dimasukkan sebagai sampel. Variabel yang dihitung d

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GEARHEART, W. W., M. E. DAVIS, and W. R. HARVEY. "THE EFFECT OF ADJUSTING FOR YEARLY SELECTION TRENDS ON VARIANCE COMPONENT ESTIMATES." Canadian Journal of Animal Science 69, no. 2 (1989): 487–90. http://dx.doi.org/10.4141/cjas89-055.

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Computer-generated beef cattle data were used to investigate the effect of accounting for the yearly selection of parents on the bias and precision of sire and error variance component estimates. The adjustment for yearly selection reduced the biases of estimated sire variance components, but resulted in losses of precision of up to 25%. Key words: Beef cattle, variance component, selection

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Adeyanju, S. A., O. Akinokun, and O. O. Ariyibi. "Preweaning Performances of Ndama Cattle." Nigerian Journal of Animal Production 3, no. 2 (2021): 117–23. http://dx.doi.org/10.51791/njap.v3i2.2521.

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Data on birth weight, preweaning daily rate of gain and weaning weight of Ndama beef cattle were obtained from routine records kept on the Fashola Livestock Farm between 1959 and 1964 and subjected to least-squares analysis to determine the effects of sex, month, year and sire on the performance characteristics. The results indicated that the Ndama weighed 16.95 kg at birth and 97.61 kg at weaning when adjusted to 205 days with a preweaning daily weigh gain of 0.38 kg. The bulls were significantly heavier at birth and weaning and also had a significantly higher preweaning daily weight gain tha

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Thrift, F. A., and D. K. Aaron. "The Crossbred Sire: Experimental Results for Cattle." Journal of Animal Science 65, no. 1 (1987): 128–35. http://dx.doi.org/10.2527/jas1987.651128x.

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Morek-Kopeć, M., and A. Zarnecki. "Genetic evaluation for functional longevity in Polish Simmental cattle." Czech Journal of Animal Science 62, No. 7 (2017): 276–86. http://dx.doi.org/10.17221/87/2016-cjas.

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The Weibull proportional hazards model was applied for genetic evaluation of functional longevity in Polish Simmentals. Data consisted of production and disposal records for 12 527 Simmental cows, daughters of 294 sires, calving for the first time from 1995 to 2014 in 286 herds. Length of productive life of cows was calculated as number of days from the first calving to culling or censoring. Average length of productive life of 4462 cows with complete (uncensored) survival records was 1198 days (39.3 months); mean censoring time for the remaining 8065 cows was 1093 days (35.8 months). Function

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Nilforooshan, M. A., A. Khazaeli, and M. A. Edriss. "Effects of missing pedigree information on dairy cattle genetic evaluations (short communication)." Archives Animal Breeding 51, no. 2 (2008): 99–110. http://dx.doi.org/10.5194/aab-51-99-2008.

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Abstract. Estimating genetic merit of livestock closest to their true genetic merit is a preliminary goal in animal breeding. The accuracy of genetic evaluations depends on the recording system and the method of evaluation. Whereas applying more complicated models may improve the accuracy of evaluations inconsiderably, improving data quality is more effective. The data were on pedigree and milk performances (milk yield, fat yield and fat percentage) of 9834 dairy cows in Isfahan, Iran, with both known parents. Genetic parameters were estimated by derivative-free restricted maximum likelihood m

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Brade, W., and E. Groeneveld. "Wechselwirkung zwischen Vater und Mutter in der Milchrinderzüchtung." Archives Animal Breeding 42, no. 6 (1999): 527–34. http://dx.doi.org/10.5194/aab-42-527-1999.

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Abstract. Title of the paper: Interaction between sire and dam in dairy cattle breeding The traditional animal model in genetic evaluation has been extended by a sire * dam interaction component demonstrating the computational feasibility. The expected additional information response from including a sire * dam component is small, however, this effect come larger with an increase in the number of animals produced by biotechnical means which will likely get special treatments.

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Hurst, Caleb W., R. Mark Enns, Craig Huffhines, Kim R. Stackhouse-Lawson, and Scott E. Speidel. "138 Sire Differences for Blood Urea Nitrogen (BUN) in Hereford Cattle." Journal of Animal Science 101, Supplement_3 (2023): 31–32. http://dx.doi.org/10.1093/jas/skad281.038.

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Abstract Excess Nitrogen excretion is a growing concern worldwide within animal agriculture, and blood urea nitrogen (BUN; mg/dL) is known as a predictor of nitrogen excretion in cattle. The objective of this study was to determine sire differences in BUN within a population of Hereford steers. Steers (n = 74) were born between March and June of 2021 from a reference sire herd for The American Hereford Association in Western Nebraska. Sixteen different Hereford sires from The American Hereford Association reference sire program produced offspring used in this study. The steers entered an on-si

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Morris, C. A., R. L. Baker, A. H. Carter, and S. M. Hickey. "Evaluation of eleven cattle breeds for crossbred beef production: carcass data from males slaughtered at two ages." Animal Science 50, no. 1 (1990): 79–92. http://dx.doi.org/10.1017/s0003356100004487.

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ABSTRACTAn experiment was carried out to compare sire breeds for carcass traits and to estimate heritabilities and phenotypic and genetic correlations. There were 1908 male cattle from 5 birth years. The sire breeds, each evaluated over three locations, were Blonde d'Aquitaine, Charolais, Chianina, Limousin, Maine Anjou, Simmental (four strains: Austrian, French (Pie Rouge), Swiss and West German) and South Devon (i.e. seven imported breeds) and Angus, Friesian, Hereford and Jersey (four local breeds), with a total of 161 sires represented. Each location contained Angus cows and additionally o

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RAHNEFELD, G. W., G. M. WEISS, H. T. FREDEEN, J. A. NEWMAN, and J. E. LAWSON. "GENETIC EFFECTS ON POSTWEANING GROWTH OF THREE-WAY CROSS BEEF CATTLE." Canadian Journal of Animal Science 68, no. 3 (1988): 647–54. http://dx.doi.org/10.4141/cjas88-074.

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Genetic effects on postweaning growth traits were evaluated for 3592 crossbred steers and heifers fed at two locations, Brandon, Manitoba and Lacombe, Alberta during a 6-yr period (1973–1978). The calves were sired by Chianina (Chi), Charolais (C), Limousin (L) and Simmental (S) bulls mated to 10 F1 dam-crosses representing the Hereford × Angus (HA) and nine dam-cross combinations produced by mating C, S and L sires with H, A and Shorthorn (N) females. Progeny rankings by terminal sire breed for weight on-test were C = Chi = S > L. For the trait 140-d postweaning average daily gain, progeny

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Jaborek, Jerad, Francis L. Fluharty, and Alejandro E. Relling. "PSVII-18 Fatty acid composition of the longissimus muscle from Angus and Wagyu sired cattle at the 6th and 12th rib location." Journal of Animal Science 98, Supplement_3 (2020): 211–12. http://dx.doi.org/10.1093/jas/skaa054.366.

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Abstract The fatty acid (FA) composition of the longissimus muscle (LM) of Angus and Wagyu sired cattle raised to a similar body weight (612 kg) were compared at the 6th and 12th rib locations. Angus sired steers represented T1, cattle from a Wagyu sire selected for growth represented T2, and cattle from a Wagyu sire selected for marbling represented T3. Data were analyzed mixed model with repeated measurements on animal (LM location); the model include the fixed effect of treatment, LM location, and their interaction, and random effect of sex. The percentage of 16:0, 18:1cis9, 18:3, and monou

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Bellamy, HJ, R. A. Mrode, and G. J. T. Swanson. "Estimation of genetic parameters for conformation traits assessed on a linear scale in ayrshire cattle." Proceedings of the British Society of Animal Production (1972) 1992 (March 1992): 125. http://dx.doi.org/10.1017/s0308229600022364.

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Information on the conformation of Ayrshire cattle has been collected by the Ayrshire Cattle Society (ACS) since 1985. Seventeen traits are recorded on a scale of 1 to 9 where 1 and 9 represent the biological extremes of the population. Approximately 2000 records are collected annually and analysed by the Milk Marketing Board using Best Linear Unbiased Prediction to provide sire evaluations on Ayrshire bulls, fitting a sire model. In the past there have been insufficient records to produce reasonable estimates of heritabilities for the traits and those from the Holstein/Friesian population hav

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G GIRIMAL, DHANRAJ, D. KUMAR, B. N. SHAHI, A. K. GHOSH, and SUNDIP KUMAR. "Sire evaluation using conventional methods and animal models in Sahiwal cattle." Indian Journal of Animal Sciences 92, no. 4 (2022): 492–96. http://dx.doi.org/10.56093/ijans.v92i4.124181.

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Sire evaluation is one of the most important aspects of dairy cattle genetic improvement programme which involves the estimation of breeding value of the bulls on the basis of first lactation 305-day milk yield. The present study was undertaken to evaluate the Sahiwal sires on the basis of observed and predicted first lactation 305-days milk yield. The study was conducted utilizing 19 Sahiwal sires with three or more daughters per sire which were evaluated and ranked on the basis of first lactation 305-day milk yield. Three different sire evaluation methods, viz. Simple daughter average, Least

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Chanda Nimbkar and Naomi Wray. "An investigation of the use of sire referencing in genetic improvement in beef cattle." Proceedings of the British Society of Animal Production (1972) 1991 (March 1991): 29. http://dx.doi.org/10.1017/s0308229600019814.

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Sire referencing schemes were first introduced in Australian sheep breeds with the aim, as the name suggests, of referencing sires used In different flocks, where the flocks tended to be large and sires tended to be selected from within the flock. However, sire referencing schemes can provide additional benefits when flock or herd size is small, since In this situation sires at least must be purchased from outside from other breeders to avoid problems of inbreeding; sire reference schemes help ensure that superior stock from other breeders can be identified objectively.

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LIU, M. F., and M. MAKARECHIAN. "COMPARISON OF PHENOTYPIC VARIATION WITHIN PATERNAL HALF SIB FAMILIES FOR WEANING WEIGHT IN A PUREBRED AND A SYNTHETIC BEEF CATTLE POPULATION." Canadian Journal of Animal Science 70, no. 2 (1990): 703–6. http://dx.doi.org/10.4141/cjas90-083.

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Records of 1487 adjusted weaning weights expressed as deviations from year means in a multibreed Beef Synthetic and a purebred Hereford population raised and managed together under the same selection program from 1968 to 1978 were used to examine the behavior of the phenotypic variation within sire families in the two populations and to further test the conventional common error variance assumption imposed on a sire model. The results indicated that on the average there was no difference in the phenotypic variation within sire families between the purebred and the synthetic populations. Within

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Richardson, E. C., R. M. Herd, I. G. Colditz, J. A. Archer, and P. F. Arthur. "Blood cell profiles of steer progeny from parents selected for and against residual feed intake." Australian Journal of Experimental Agriculture 42, no. 7 (2002): 901. http://dx.doi.org/10.1071/ea01098.

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This study examined whether a single generation of divergent selection for residual feed intake was accompanied by differences in red and white blood cell parameters that could assist in the early identification of animals likely to perform well in a test for residual feed intake. Two cohorts of steer progeny born in 1996 (n = 74) and 1998 (n = 120) of parents selected for low residual feed intake (high efficiency) and high residual feed intake (low efficiency) were used. The steers grazed on pasture before feedlot entry and subsequent feed intake test. Blood samples were collected from the 19

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El Berbri, Ikhlass, Anne Françoise Petavy, Gerald Umhang, et al. "Epidemiological Investigations on Cystic Echinococcosis in North-West (Sidi Kacem Province) Morocco: Infection in Ruminants." Advances in Epidemiology 2015 (April 19, 2015): 1–9. http://dx.doi.org/10.1155/2015/104025.

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Despite alarming statistics on cystic echinococcosis (CE) in humans and the importance of dog and ruminant populations, no epidemiological investigations have been performed on CE in Sidi Kacem Province (North-West of Morocco). A part of large research project was devoted to determine the status of CE in ruminants. This paper reports the results of the investigations carried out in the 10 abattoirs of this region, over four successive years (April 2009–March 2013). A total of 1,302 sheep, 652 head of cattle, and 136 goats were postmortem examined and hydatid cysts were collected and examined.

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Notter, D. R., B. Tier, and K. Meyer. "Sire × herd interactions for weaning weight in beef cattle." Journal of Animal Science 70, no. 8 (1992): 2359–65. http://dx.doi.org/10.2527/1992.7082359x.

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Amer, P. R., R. Crump, and G. Simm. "A terminal sire selection index for UK beef cattle." Animal Science 67, no. 3 (1998): 445–54. http://dx.doi.org/10.1017/s1357729800032859.

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AbstractA selection index which incorporates estimated breeding values of traits recorded in the United Kingdom pedigree beef cattle breeds is described. The breeding objective is made up of commercial carcass, calving difficulty and gestation length traits. Economic values for these breeding objective traits are summarized from related studies, while partial genetic regression estimates of breeding objective traits on recorded traits are derived mainly from the literature.The selection index is described in terms of the reduction in expected genetic response from selection on the index when i

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NAGAMINE, Yoshitaka, Keijiro NIRASAWA, Hideaki TAKAHASHI, and Ken SUZUKI. "Progeny Testing for Japanese Black Sire Using Crossbred Cattle." Nihon Chikusan Gakkaiho 68, no. 10 (1997): 965–69. http://dx.doi.org/10.2508/chikusan.68.965.

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Wood, B. J., J. H. J. van der Werf, and P. F. Parnell. "Valuing DNA marker tested bulls for commercial beef production." Australian Journal of Agricultural Research 55, no. 8 (2004): 825. http://dx.doi.org/10.1071/ar03268.

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This paper quantifies the benefits of using a sire genotyped for a single recessive gene in a commercial beef herd. A modified gene-flow method was used to account for changing allele frequency over time. The benefits to a commercial breeder of using a genotyped sire were highest when initial allele frequency was moderate and when the sire was used in a self-replacing herd that had increased allele frequency over time. An example of the thyroglobulin gene affecting marbling in beef cattle was used. The value to a self-replacing herd of a sire homozygous for the favourable allele of the thyrogl

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Zabolewicz, T., U. Czarnik, J. Strychalski, C. S. Pareek, and M. Pierzchała. "The association between microsatellite Bm6438 and milk performance traits in Polish Holstein-Friesian cattle." Czech Journal of Animal Science 56, No. 3 (2011): 107–13. http://dx.doi.org/10.17221/1299-cjas.

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The objective of this study was to verify the hypothesis postulating the location of QTL linked marker for milk performance traits in the proximal section of chromosome BTA1 by analyzing the microsatellite BM6438 alleles from heterozygous sires and the milk performance traits of the investigated cattle. The experiment covered 484 Polish Holstein-Friesian primiparous cows, the progeny of three unrelated sires, including 317 cows ‒ the progeny of two sires with 256/268 genotype and 167 cows &ndash; the progeny of a sire with 258/268 genotype. BM6438 polymorphism was determined by PCR and pol

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Gupta, Rohit, S. K. Sahoo, Simarjeet Kaur, S. K. Dash, and Puneet Malhotra. "Modelling Lactation Curve for Genetic Evaluation of Crossbred Cattle." International Journal of Bio-resource and Stress Management 14, May, 5 (2023): 677–82. http://dx.doi.org/10.23910/1.2023.3443.

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The present study was conducted on first lactation 4415 monthly test-day milk yield records of 466 crossbred (CB) cattle sired by 89 bulls during 2000–2018 (19 years) maintained at Directorate of Livestock Farms, GADVASU, Ludhiana, Punjab, India. The crossbred cattle with lactation length of minimum 100 days were considered for the study. The aim was to develop the best lactation curve model and to compare the breeding values of sires based on actual and predicted first lactation 305-day milk yield (FL305DMY). The data were classified and coded according to different season and age at first ca

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Wang, S., G. L. Roy, A. J. Lee, et al. "Genetic line × concentrate level interactions for milk production and feed efficiency in dairy cattle." Canadian Journal of Animal Science 72, no. 2 (1992): 227–36. http://dx.doi.org/10.4141/cjas92-029.

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Early first lactation data from 2230 cows of five research herds of Agriculture Canada were used to study the interactions of genetic line by concentrate level, and sire by concentrate level and to estimate breeding values of sires. The genetic lines were defined as Holstein (H), Ayrshire (A), and H × A or A × H (C). The interactions of sire by concentrate level were studied separately using progeny of five different mating groups: G1, H sires mated to H cows; G2, H sires mated to H, A and C cows; G3, A sires mated to A cows; G4, A sires mated to H, A and C cows; and G5, C sires mated to C cow

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Kilian, Levi R. "146 Effect of Sire on Methane Production." Journal of Animal Science 101, Supplement_3 (2023): 33. http://dx.doi.org/10.1093/jas/skad281.040.

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Abstract The objective of this study was to determine if sires have a significant effect on methane (CH4) production in a feedlot setting. To reduce the emission of greenhouse gases from cattle, evaluating variables that are easy to manage and change becomes important for a solution. If sires influence methane production, selection can be used to reduce methane production in cattle as sire differences are indicative of a genetic influence. The data used in this study were obtained from Colorado State University (CSU), with animals from John E. Rouse Beef Improvement Center. Animals with methan

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Goyache, F., and J. P. Gutierrez. "Heritability of reproduetive traits in Asturiana de los Valles beef cattle breed." Archives Animal Breeding 44, no. 5 (2001): 489–96. http://dx.doi.org/10.5194/aab-44-489-2001.

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Abstract. Heritability was estimated for four reproductive traits in the Asturiana de los Valles breed in order to evaluate the possibility of include this information in the breed's current improvement program. The estimations were done using an animal model except for calving ease score. For this last trait, a threshold model under a sire model was fitted, with the sire effect as the only random effect in the model besides the residual. Estimated heritabilities for calving interval age at first calving, gestation length, as dam traits, and calving ease were 0.12, 0.27, 0.15 and 0.42, respect

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Baker, R. L., A. H. Carter, C. A. Morris, and D. L. Johnson. "Evaluation of eleven cattle breeds for crossbred beef production: performance of progeny up to 13 months of age." Animal Science 50, no. 1 (1990): 63–77. http://dx.doi.org/10.1017/s0003356100004475.

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ABSTRACTEleven sire breeds were evaluated in New Zealand from the performance of their calves at two sites using Aberdeen-Angus cows, and at a third site using Angus and Hereford cows. The experiment was carried out over 5 years, generating a total of 4519 calves by 161 different sires. There were seven recently imported sire breeds, Blonde d'Aquitaine, Charolais, Chianina, Limousin, Maine Anjou, Simmental (including strains from four countries) and South Devon, and four local breeds, Angus, Friesian, Hereford and Jersey. Overall, 92% of calves survived at birth and through to weaning, with a

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Siddo, S., N. Moula, I. Hamadou, et al. "Breeding criteria and willingness to pay for improved Azawak zebu sires in Niger." Archives Animal Breeding 58, no. 2 (2015): 251–59. http://dx.doi.org/10.5194/aab-58-251-2015.

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Abstract. In Niger, the growth in local demand for milk and meat makes it necessary to consider genetic improvement of the indigenous cattle. At the Toukounous breeding station, the Azawak zebu has undergone over 50 years of line breeding for milk and meat production traits. To understand the adoption potential of improved Azawak sires in Niger, this study proposes to estimate the values that cattle keepers ascribe to different breeding criteria. In a first participatory stage, the breeding criteria used by cattle keepers were first listed and their relative importance was semi-quantified in t

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Wayan Wariata, Sulaiman N Depamede, Made Sriasih, Anwar Rosyidi, and Ryan Aryadin Putra. "Immunoblot analysis of antibodies obtained from rabbits immunized with a synthetic Binder of Sperm Protein-1 (BSP-1) epitope." World Journal of Biology Pharmacy and Health Sciences 17, no. 2 (2024): 029–32. http://dx.doi.org/10.30574/wjbphs.2024.17.2.0042.

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This study aims to analyze whether antibodies produced through multiple vaccinations of a synthetic Binder of Sperm Protein-1 (BSP-1) epitope to local rabbits, can react against BSP-1 found in the ruminant sperm. BSP-1 is one of the biomarkers suggested to authenticate sire fertility. The method used was immunoblot assay against frozen semen of Bali cattle and local buffalo, also against the extracts of the caput-, and cauda- epididymis, as well as the testis of the buffalo. Analyses showed that the antibodies reacted to antigens found in the frozen semen of cattle and buffalo. The most notabl

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Nagamine, Y., K. Nirasawa, and H. Takahashi. "Usage of crossbred cattle for the progeny testing of Japanese black cattle (Wagyu)." Proceedings of the British Society of Animal Science 1997 (1997): 146. http://dx.doi.org/10.1017/s1752756200595878.

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The Japanese black cattle (Wagyu) is well known for their high marbling and price meat. Usually purebred calves from Japanese black cattle are used for the station or field progeny testing. If genetic variance of particular traits of the dam breed is much smaller than that of the sire breed, breeding values of sires can be estimated accurately from their crossbred progeny because genetic difference among dams is relatively small and can be ignored. The objective of this study was to investigate the possibility of using crossbred for progeny testing of Japanese black sires. Since marbling score

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Meyer, Karin, and Bruce Tier. "Estimates of variances due to parent of origin effects for weights of Australian beef cattle." Animal Production Science 52, no. 4 (2012): 215. http://dx.doi.org/10.1071/an11195.

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Estimates of variances due to differential expression of paternally and maternally derived genes can be obtained from animal model type analyses by fitting appropriate gametic effects. This is feasible for large-scale analyses, because the inverse of the gametic relationship matrix can be set up directly from a list of pedigrees. We present a series of analyses applying such a model to large sets of records for birth, weaning, yearling and final weights of Australian Angus and Hereford cattle. On one hand, results show that maternal genetic effects on these traits are largely confounded with m

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Rocha, J. C. M. C., H. Tonhati, M. M. Alencar, and R. B. Lôbo. "Genetic parameters estimates for gestation length in beef cattle." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 57, no. 6 (2005): 784–91. http://dx.doi.org/10.1590/s0102-09352005000600013.

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Variance components were estimated for gestation length fitting the additive direct effect of calf, maternal genetic effect and sire effect as random effects. The statistical models also included the fixed effects of contemporary group, that included the date of breeding (AI), date of birth, and sex of calf, and the covariate age of dam at calving (linear and quadratic). Two different models were used, model 1 considering GL as a trait of the calf, and model 2 considering GL as a trait of the dam. The means of gestation length for the purebred animals were 294.55 days (males) and 293.34 days (

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Rattanaronchart, Suwat, M. Grossman, W. A. Mohammad, R. D. Shanks, and A. J. Lee. "Sire and Sire-Feeding Regimen Interaction Effects on Lactation, Growth, and Carcass Traits in Dairy Cattle." Journal of Dairy Science 68, no. 5 (1985): 1311–19. http://dx.doi.org/10.3168/jds.s0022-0302(85)80963-2.

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Pariyati, Pariyati, and Rukhayati Rukhayati. "UPAYA PENGEMBANGAN DAN PEMBERDAYAAN PETERNAK SAPI BALI POTONG SISTEM PERKANDANGAN DI KECAMATAN DOLO KABUPATEN SIGI." Sambulu Gana : Jurnal Pengabdian Masyarakat 1, no. 1 (2022): 1–6. http://dx.doi.org/10.56338/sambulu_gana.v1i1.2198.

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Beef cattle farming business can be said to be successful if the business contributes income and can meet the daily needs of farmers. Currently, beef cattle farming is mostly carried out by the community, so that it opens and absorbs workers. Livestock business can be the foundation of family income (source of income). handling livestock as a series of activities, through community service activities that are carried out independently, is expected to open up public insight through beef cattle farming. Food self-sufficiency in a broad sense is not only in rice, but includes the total food needs

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Bertrand, J. K., P. J. Berger, and R. L. Willham. "Sire × Environment Interactions in Beef Cattle Weaning Weight Field Data." Journal of Animal Science 60, no. 6 (1985): 1396–402. http://dx.doi.org/10.2527/jas1985.6061396x.

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Citek, J., V. Rehout, J. Hajkova, and J. Pavkova. "Monitoring of the genetic health of cattle in theCzechRepublic." Veterinární Medicína 51, No. 6 (2012): 333–39. http://dx.doi.org/10.17221/5553-vetmed.

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A screening was carried out for CVM, BLAD, DUMPS, bovine citrullinaemia, glycogen storage disease V, and Robertsonian translocations in the cattle population of the Czech Republic. In 406 Holstein sires and 146 Czech Pied (Czech Simmental) sires entering the AI programme in the Czech Republic from 2003&ndash;2005, no heterozygous sire for DUMPS, bovine citrullinaemia and BLAD was found. The heterozygote was not found also in the beef sires of Charolais, Limousine, Beef Simmental, Blonde d&rsquo;Aquitaine, Belgian Blue, Aberdeen-Angus, and Hereford breeds. In 111 elite Holstein females,

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Hanuš, O., J. Kučera, T. Yong, et al. "Effect of sires on wide scale of milk indicators in first calving Czech Fleckvieh cows." Archives Animal Breeding 54, no. 1 (2011): 36–50. http://dx.doi.org/10.5194/aab-54-36-2011.

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Abstract. The possible genetic impact of sire on cattle populations, herd milk yield and milk traits (fat and protein) have been described in the literature along with its impact on some milk indicators (MIs) as somatic cell count, urea and ketones. There is a dearth of information on the impact on a series of other MIs (physical, chemical, health, technological). The goal of this study was to assess the possible effect of sire on a wide range of MIs including technological properties in Czech Fleckvieh to suggest future possible breeding trends. A series of MIs (n=37) was investigated in indi

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Čítek, J., V. Řehout, and J. Hájková. "Congenital disorders in the cattle population of the Czech Republic." Czech Journal of Animal Science 54, No. 2 (2009): 55–64. http://dx.doi.org/10.17221/1668-cjas.

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The aim of the paper was to analyse congenital disorders in the Czech cattle population in 1986–2001. The offspring of 474 sires – 215 Czech Simmental, 236 Holstein, and 23 beef – were diagnosed with congenital disorders which were unevenly distributed because only 18 occurred in the progeny of 10 and more sires, in contrast to 88 occurring in the progeny of 1 sire only. Umbilical hernia was the most frequently noted disorder, and 136 sires fathered progeny with limb anomalies. The most frequent gestational accident was schistosomus reflexus, the results suggesting a familial burden. Three sir

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Fisher, A. V., G. R. Nute, and M. H. Davies. "A comparison of the carcass and meat quality characteristics of piemontese - and charolais-cross cattle at the same subcutaneous fat proportion." Proceedings of the British Society of Animal Production (1972) 1992 (March 1992): 187. http://dx.doi.org/10.1017/s0308229600022960.

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Since the early 1980's there has been a growing interest in the Italian Piemontese breed as a crossing sire breed for use on dairy cows in the United Kingdom. Early interest was centred on ease of calving, growth performance and carcass yields but more recently there have been claims that the Piemontese breed produces meat which ranks highly for tenderness. The aim of this study was to evaluate carcass and meat qualities of Piemontese - sired cattle out of the British dairy herd by comparing these characteristics with similar and contemporaneous Charolais - sired cattle.

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Manzi, Maximillian, Lotta Rydhmer, Martin Ntawubizi, Claire D’Andre Hirwa, Callixte Karege, and Erling Strandberg. "Milk production and lactation length in Ankole cattle and Ankole crossbreds in Rwanda." Tropical Animal Health and Production 52, no. 6 (2020): 2937–43. http://dx.doi.org/10.1007/s11250-020-02311-9.

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Abstract This study assessed daily milk yield (DMY), 100-day (MY100), and 305-day (MY305) milk yield, and lactation length (LL) in purebred Ankole cattle and Ankole crossbreds, and the influence of environmental factors on these traits. Milk yield data were obtained for 865 cows and 1234 lactations and analyzed using a mixed linear model. The overall least squares mean of DMY, MY100, and MY305 across breed groups was 2.7 L (N = 1234, SD = 1.7), 262 L (N = 959, SD = 176), and 759 L (N = 448, SD = 439), respectively, while the average lactation length was 256 days (N = 960, SD = 122). All factor

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Dobicki, A., P. Nowakowski, M. Kierzek, A. Zachwieja, and P. Baranowski. "Reproduction behavior and performance of beef cattle herd in free ranging environment of "Warta Mouth" national park." Biotehnologija u stocarstvu 23, no. 5-6-1 (2007): 253–60. http://dx.doi.org/10.2298/bah0701253d.

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The observations conducted on a herd of beef cattle, extensively free grazed, demonstrated that cows in oestrus, breeding bulls (sires) and young bulls showed a wide range of sexual behavior. In the cow-cow relation mutual mounting was a standard sexual behavior, confirmed by 88.9% of observations. In the relation between sire and cow in oestrus, of the four forms of activity initiated by the cow, rubbing against a sire and mounting him was recorded in 100% of observations. The evaluation of the activity of the sire in relation to a cow in oestrus covered seven behavioral forms, of which as st

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Strapáková, E., J. Candrák, P. Strapák, and A. Trakovická. "Genetic evaluation of the functional productive life in Slovak Simmental cattle." Archives Animal Breeding 56, no. 1 (2013): 797–807. http://dx.doi.org/10.7482/0003-9438-56-079.

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Abstract. Genetic evaluation of sires based on length of functional productive life of their daughters was carried out using a Weibull proportional hazard sire-maternal grandsire model. The data consisted of 214634 registered Slovak Simmental cows with censoring of 21.34%. Besides the random sire and maternal grandsire effects, the model included time dependent effects parity × stage of lactation interaction, within-herd standard deviations of milk production, herd × year × season interaction, change of herd size with respect to the previous year, and time independent effect age at first calvi

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TRUS, D., and J. W. WILTON. "GENETIC PARAMETERS FOR MATERNAL TRAITS IN BEEF CATTLE." Canadian Journal of Animal Science 68, no. 1 (1988): 119–28. http://dx.doi.org/10.4141/cjas88-011.

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Direct (D) and maternal (M) parameters for birth weight (BW), preweaning gain (WG) and calving ease (CE) were estimated for Angus (AN), Hereford (HE), Charolais (CH), Simmental (SM) and Shorthorn (SS). Data for the study were collected by Agriculture Canada from 1973 to 1983 for use in the National Sire Monitoring Program. Variances were estimated for each breed by a modified Method IV applied to a sire-maternal grandsire model with herd-year-seasons and age of dam × sex of calf as fixed effects. Genetic correlations (D/M) between D and M effects for WG in AN, HE, SS, CH and SM were −0.54, −0.

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