Olga M Sheveleva, Marina A Svyazhenina
Animal Husbandry and Fodder Production. 2023. Vol. 106, no. 4. Р. 40-56.
doi:10.33284/2658-3135-106-4-40
Original article
The influence of bulls on the productive qualities of progeny
Olga M Sheveleva1, Marina A Svyazhenina2
1,2 State Agricultural University of the Nothern Trans-Ural, Tumen, Russia
1olgasheveleva@mail.ru, https://orcid.org/0000-0002-1940-3964
2svyazhenina@gausz.ru, https://orcid.org/0000-0003-1571-2900
Abstract. Research has been carried out to study the influence of bulls on the quality of progeny, their impact on changes in the productive qualities of the Holstein herd. The article presents the results of a comprehensive analysis of daughters of different bulls in terms of growth and development indicators (in terms of live weight during the rearing process and indicators of reproductive maturity), and in terms of milk productivity for the first lactation. To identify the impact of bulls, a comparison of the productivity of daughters and mothers is given. The research revealed both the peculiarities of the influence of different sires on daughter cows and their similarities. The bulls were divided into three groups according to their influence on the weight of their daughters: those that produced relatively large heifers, relatively small and neutral ones. According to the reproductive qualities of the daughters of different bulls, early maturing animals were observed with the age of the first fertile insemination at 12-13 months and with an average fertilization period of 14-16 months. The impact of bulls on the milk production of daughter cows was greater; the daughters of Boston, Malibu and Samoa bulls were the most effective. However, comparing the productive qualities of daughters and mothers, the bull Safir turned out to be the most effective, giving the maximum increase in the production of milk fat and protein during a standard lactation. That is, the influence of bulls turned out to be very diverse, which reduces the rate of improvement of the herd. Therefore, selecting bulls it is necessary to take into account, among other things, whether they have been tested for the quality of their progeny in herds with similar productivity, or to carry out testing on a small number of their own herd, so that sires who turn out to be deteriorating do not reduce the overall productivity of the herd.
Keywords: dairy cattle, Holstein breed, sires, quality of progeny, milk productivity
For citation: Sheveleva OM, Svyazhenina MA. The influence of bulls on the productive qualities of progeny. Animal Husbandry and Fodder Production. 2023;106(4):40-56. (In Russ.). https://doi.org/10.33284/2658-3135-106-4-40
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Information of about the authors:
Olga M Sheveleva, Dr. Sci. (Agriculture), Professor, Head of the Department of Technology of Production and Processing of Livestock Products, State Agrarian University of the Northern Urals, 7 Republic Street, Tyumen region, Tyumen, 625007.
Marina A Svyazhenina, Dr. Sci. (Agriculture), Assistant Professor, State Agrarian University of the Northern Urals, 7 Republic Street, Tyumen region, Tyumen, 625007.
The article was submitted 13.11.2023; approved after reviewing 16.11.2023; accepted for publication 11.12.2023.
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