Inbreeding depression of simmental cattle in the system of genetic and environmental factors assessment
Автор: Shendakov A.I.
Журнал: Вестник аграрной науки @vestnikogau
Рубрика: Сельскохозяйственные науки
Статья в выпуске: 6 (69), 2017 года.
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The article is devoted to the problems of inbreeding depression minimization in a herd of Simmental cattle. The author analyses the data received during the experimental research of the evaluation of the intensity of Simmental calves growth using different degrees of inbreeding, including in-and-inbreeding, bottom crossing, top-cross inbreeding, in-breed-line-crossing. The results of the experiment showed that at bottom crossing, top-cross inbreeding, in-breed-line-crossing the influence of genetic factors on live weight from birth to 6 months in bulls increases to 73.7-75.8, also in 7, 8, 9 and 10 months heifers with Fx=25.0% left behind heifers with Fx= 0.781% and 24.8, 31.0, 41.7 and 43.2 kg, respectively (p
Genetic factors, in-and-inbreeding, bottom crossing, top-cross inbreeding, in-breed-line-crossing, inbreeding depression, simmental cattle
Короткий адрес: https://sciup.org/147124489
IDR: 147124489 | DOI: 10.15217/ISSN2587-666X.2017.6.83
Список литературы Inbreeding depression of simmental cattle in the system of genetic and environmental factors assessment
- Abe H, Masuda Y, Suzuki M. Relationships between reproductive traits of heifers and cows and yield traits for Holsteins in Japan//J. Dairy Sci. 2009. № 92. Р. 4055-4062.
- Eyre-Walker A., Keightley P.D. The distribution of fitness effects of new mutations//Nature Publishing Group, 2007. № 8. P. 610-618.
- Effects of inbreeding in the dam on dystocia and stillbirths in US Holsteins/V. Adamecet al.//J. Dairy Sci. 2006. № 89. Р. 307-314.
- Heritabilities, genetic correlations, and genetic change for female fertility and protein yield in Norwegian dairy cattle/I.M. Andersen-Ranberg et al.//J. Dairy Sci. 2005. № 88. Р. 348-355.
- Biffani S., Samoré A.B., Canavesi F. Inbreeding depression for production, reproduction and functional traits in Italian Holstein cattle//In: Proc. World Congr. Genet. Montpellier, France: Applied to Livest. Prod., 2002. p. 183-186.
- Bijma P.J., van Arendonk A.M., Woolliams J.A. Prediction rates of inbreeding for livestock improvement schemes//J. Anim. Sci. 2001. № 79. Р. 840-853.
- Genetic parameters of milk coagulation properties and their relationships with milk yield and quality traits in Italian Holstein cows/M. Cassandro et al.//J. Dairy Sci. 2008. № 91. Р. 371-376.
- Inbreeding depression for global and partial economic indexes, production, type and functional traits/C. Croquet et al.//J. Dairy Sci. 2006. № 89. Р. 2257-2267.
- De Roos A.P.W., Hayes B.J., Goddard M.E. Reliability of genomic predictions across multiple populations//Genetics. 2009. № 183. Р. 1545-1553.
- Effects of genomic selection on genetic improvement, inbreeding, and merit of young versus proven bulls/A.P.W. De Roos et al.//J. Dairy Sci. 2011. № 94. Р. 1559-1567.
- Gholap P.N., Kale D.S., Sirothia A.R. Genetic Diseases in Cattle: A Review//Research Journal of Animal, Veterinary and Fishery Sciences. 2014. Vol. 2(2). Р. 24-33.
- König S., Simianer H. Approaches to the management of inbreeding and relationship in the German Holstein dairy cattle population//Livest. Sci. 2006. № 103. Р. 40-53.
- Evaluation of inbreeding in laying hens by applying optimum genetic contribution and gene flow theory/S. König et al. Poult. Sci. 2010. № 89. Р. 658-667.
- Wiggans G.R., Van Raden P.M., Zuurbier J. Calculation and use of inbreeding coefficients for genetic evaluation of United States dairy cattle//J. Dairy Sci. 1995. № 78. Р. 1584-1590.
