PECULIARITIES OF MUSCULAR, ADIPOSE AND OSSEOUS TISSUE GROWTH IN BOTH PUREBRED AND MIXED BRED BULL-CALVES
- Authors: Prohorov IP1, Nikitchenko DV2
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Affiliations:
- Russian State Agrarian University - Moskov state agricultural akademy named after K.A. Timiryazev
- RUDN University (Peoples’ Friendship University of Russia)
- Issue: Vol 12, No 3 (2017)
- Pages: 261-271
- Section: Morphology and ontogenesis of animals
- URL: https://agrojournal.rudn.ru/agronomy/article/view/17109
- DOI: https://doi.org/10.22363/2312-797X-2017-12-3-261-271
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Abstract
Data on morphological carcass composition study in both purebred and mixed bred bull-cal-ves, obtained from crossing black-and-white cows with Aberdeen-Angus and Charolais bulls, are provided in the article. It has been discovered that the carcasses mass of bull-calves increased with age due to more intensive. Lean part growth and skeleton to a lesser degree, Bull-calves, genotype has an important influence on muscu-lar system growth. Inherited potential in musculature growth is better realized in Charolais mongrel bull-calves, the degree of muscular component being 253.6 kg at the age of 18 months, which is by 31.5% bigger than in they black-and-white herdmates. There are no big differences in carcass muscular tissue weight between Aberdeen-Angus crossbreeds and black-and-white Bull-calves. The greatest adipopexis growth by the end of the experiment is a characteristic feature of Aberdeen-Angus crossbreeds. The skeleton growth rate of young animals by comparison during the experimental period is practically the same, but with age the skeleton growth rate decreases significantly in bull-calves.
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About the authors
I P Prohorov
Russian State Agrarian University - Moskov state agricultural akademy named after K.A. Timiryazev
Author for correspondence.
Email: v.e.nikitchenko@mail.ru
Прохоров Иван Петрович - доктор сельскохозяйственных наук, профессор кафедры мясного и молочного скотоводства Московской государственной академии имени К.А. Тимирязева
Timiryazevskaya st., 49, Moscow, Russia, 127550D V Nikitchenko
RUDN University (Peoples’ Friendship University of Russia)
Email: dvnikitchenko@mail.ru
Никитченко Дмитрий Владимирович - доктор биологических наук, профессор департамента ветеринарной медицины Аграрно-технологического института Российского университета дружбы народов
Miklukho-Maklaya st., 6, Moscow, Russia, 117198References
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