Breeding and genetic parameters in Russian dual-purpose cattle population
https://doi.org/10.31043/2410-2733-2019-2-63-70
Abstract
The article is aimed to the assessment and analysis of breeding and genetic parameters of milk production for first-calving cows in Russian dual-purpose cattle population. As initial information, SELEX software databases for breeding animal of five regions in Russian Federation were used: Belgorod, Orel, Kursk and Voronezh regions, as well as the Altai Territory. The total amount of records was 72394, including 21078 individuals of the Simmental breed and 51316 of the Red-and-White breed. To determine the differences and similarity of the variability values and their relationship for milk production traits in each breeds and the common data set have been studied. Based on the obtained results, the breeding equations indices of animals in the combined population of dual-purpose cattle, as well as separately in the Simmental and Red-and-White breeds were constructed. Revealed a significant advantage of the Red-and-White cattle breed for milk yield with a lower content of fat percentage. Evaluation of phenotypic and genetic values of variability and correlations between studied traits revealed same values in the compared breeds, as well as the equal directionality of correlations between them. At the same time, the structures for constructing selection indices differed significantly, which was due not so much to the absolute values of variability (covariance) of traits in the Red-and-White and Simmental breeds, but to differences in their relative values. As a preliminary assessment, a comparative analysis was carried out based on the sires’ estimated breeding values (5 best individuals in milk yield selection index and 5 best individuals in terms of fat percentage), assessed by the developed indices. The analysis showed that the rank correlation coefficients of bulls, estimated by different structures of indices were very high (r= + 0.94…+0.95 by comparing breeds under the whole population and r= + 0.99 in comparing between Simmental and Red-and-White populations). The results obtained provide actual information for choosing the optimal way for breeding control and management in Russian dual-purpose cattle in the future.
About the Authors
S. Kharitonov
Federal Science Center for Animal Husbandry named after Academy Member L. K. Ernst
Russian Federation
Russian Federation
Dr. Habil. (Agr. Sci.), Professor, Leading Researcher
Dubrovitsy 60, Podolsk Municipal District, Moscow Region, 142132
A. Sermyagin
Federal Science Center for Animal Husbandry named after Academy Member L. K. Ernst
Russian Federation
Russian Federation
PhD (Agr. Sci.), Leading Researcher, Head of Population Genetics and Animal Breeding Department
Dubrovitsy 60, Podolsk Municipal District, Moscow Region, 142132
L. Ignatieva
Federal Science Center for Animal Husbandry named after Academy Member L. K. Ernst
Russian Federation
Russian Federation
PhD (Agr. Sci.), Leading Researcher
Dubrovitsy 60, Podolsk Municipal District, Moscow Region, 142132
E. Melnikova
Federal Science Center for Animal Husbandry named after Academy Member L. K. Ernst
Russian Federation
Russian Federation
PhD (Agr. Sci.), Leading Researcher, Head of Analysis and Modeling of Breeding Processes in Animal Husbandry Laboratory
Dubrovitsy 60, Podolsk Municipal District, Moscow Region, 142132
O. Osadchaya
Federal Science Center for Animal Husbandry named after Academy Member L. K. Ernst
Russian Federation
Russian Federation
PhD (Agr. Sci.), deputy director
Dubrovitsy 60, Podolsk Municipal District, Moscow Region, 142132
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Review
For citations:
Kharitonov S., Sermyagin A., Ignatieva L., Melnikova E., Osadchaya O. Breeding and genetic parameters in Russian dual-purpose cattle population. Genetics and breeding of animals. 2019;(2):63-70. (In Russ.) https://doi.org/10.31043/2410-2733-2019-2-63-70
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