Izhevsk, Izhevsk, Russian Federation
Izhevsk, Izhevsk, Russian Federation
Izhevsk, Izhevsk, Russian Federation
The purpose of research is improving the efficiency of the breeding process with the planned inbreeding. Based on the works of Russian and foreign authors it is necessary to more closely approach the implementation of this method in practice. Many farms in the breeding of cattle meets application-related selection, often this phenomenon is spontaneous mean mass selection without studying the ancestry of individual animals or the proper documentation for the selection of the herd, and sometimes livestock-breeders deliberately form a related pair, despite the fact that in the literature there is still no clear conventional wisdom about the dangers of inbreeding or positive development. To properly assess the effectiveness of inbreeding it should be primarily studied the results of the use of inbred animals. The studies were conducted in a herd of Black-Motley breed cattle AIC «LUCH» Vavozhsky District of Udmurt Republic. The material for the study were pedigree card form 2-MOL, the data records, zootechnical and breeding records. Among outbreed animals were selected animals obtained by using the in-line selection and cross- line one. Inbreed individuals were classified depending on the degree and type of inbreeding. Cows resulting from the use of inbreeding, outbreeding outperform their half relative by yield of milk at 187.1 kg (3.5%). Between the calving, the longest period was detected in the group of cows resulting moderate inbreeding - 421.2 (R≥0.95) of the day, which is above the average for the group of outbreed and inbreed animals by 22.6 and 11.1 days, respectively.
inbreeding, outbreeding, selection, line, selection, genealogy, black and white, motley, bred
1. Baranov, S.D. The milk yield of cows of Black-motley breed of different origin / S. D. Batanov, G. Yu. Berezkina, E. I. Shkarupa // Niva Povolzhya. - 2011. - № 4. - P. 75-79.
2. Dunin, I. M. Use of inbreeding in dairy cattle / I. M. Dunin, V. G. Trufanov, D. V. Novikov // Husbandry. - 2012. - №9. - P. 2-3.
3. Kuznetsov, V. M. About restriction of inbreeding in small populations of dairy cattle / V. M. Kuznetsov, N. V. Vakhonina // Agricultural Biology. - 2010. - №4. - P. 55-58.
4. Lyubimov, A. I. Influence of inbreeding for reproductive performance of cows / A. I. Lyubimov, V. M. Yudin // Science of Udmurtia. - 2012. - №4 (62). - P. 164-168.
5. Lyubimov, A. I. An integrated approach to targeted consolidation of inbreeding / A. I. Lyubimov, V. M. Yudin // Husbandry. - 2014. - № 4. - P. 2-4.
6. Lyubimov, A. I. Evaluation of the integrated inbreeding in Black-and-white cattle breeding work / A. I. Lyubimov, V. M. Yudin // Agrarian Herald Urals. - 2013. - №2 (108). - P. 22-24.
7. Lyubimov, A. I. The results of the relative selection in the breeding of dairy cattle in pedigree farms of the Udmurt Republic and Sverdlovsk Region / A. I. Lyubimov, V. M. Yudin, K. P. Nikitin // Veterinary, Animal Science and Biotechnology. - 2015. - № 4. - P 22-29.
8. Lyubimov, A. I. The effectiveness of inbreeding in the process of improvement of Black-motley breed of cattle / A. I. Lyubimov, V. M. Yudin // Bulletin Samara SAA. - 2014. - № 1. - P. 66-69.
9. Ernst, L. K. Biological problems of livestock in the XXI century / L. K. Ernst, N. A. Zinovieva. - M. : RAAS, 2008. - 508 p.
10. Yudin, V. M. Experience in the use of inbreeding in the dairy cattle breeding / V. M. Yudin, A. I. Lyubimov // Husbandry. - 2015. - №8. - P. 6-7.
11. Yudin, V. M. Improving the productive qualities of Black and white cattle with inbreeding / V. M. Yudin, A. I. Lyubimov // Bulletin of the Samara State Agricultural Academy. - 2015. - № 1. - P. 163-168.
12. Yudin, V. M. Economically useful traits and genetic parameters of inbreed and outbreed Black-motley cattle : abstr. of diss. … cand. agricultural sci. / Yudin Vitalij Maratovich. - Keynel, 2013. - 18 p.
