INFLUENCE OF SELECTION AND GENETIC PARAMETERS ON THE ACCURACY OF INDEX ESTIMATION (BY THE EXAMPLE OF PIG BREEDING)
Abstract
In pig breeding, in contrast to dairy cattle breeding, the system of commercial production consists of different levels of breeding work: nucleus, multipliers and industrial producers. To optimize the calculation of economic value, it is necessary to use a methodology that allows us to divide the contribution of a particular level of breeding enterprise, breed and gender of pigs in the profit received from the production of a marketable animal. In this connection, the analysis of changes in the accuracy of the selection index depending on the initial selection and genetic parameters and aggregate genotype was carried out. A composite index, including two traits, was used for stud boars: average daily gain (ADG) and fat thickness (FT). A non-linear dependence of reliability and heritability coefficients was found, with reliability increasing from 5% to 13% as the heritability coefficients increased by 10%, indicating a more reliable estimate for traits with high heritability. It was found that the economic value of the traits had an impact only on the dimensionality of the developed index.
About the Authors
M. M. Khramchanka
Научно-практический центр национальной академии наук Беларуси по животноводству
Russian Federation
Russian Federation
A. V. Romanenko
Научно-практический центр национальной академии наук Беларуси по животноводству
Russian Federation
Russian Federation
K. V. Nevar
Научно-практический центр национальной академии наук Беларуси по животноводству
Russian Federation
Russian Federation
References
1. Oldenbroek, Kor. Textbook Animal Breeding: Animal Breeding and Genetics for BSc Students / Kor Oldenbroek, L. van der Waaij ; Centre for Genetic Resources and Animal Breeding and Genomics Group, Wageningen University and Research Centre. – 2014. – 311 p.
2. Design and optimization of animal breeding programmers / J. C. M. Dekkers [et al.] // Studylib [Electronic. resource]. – 2013-2023. – Access mode: https://studylib.net/doc/14354490/design-and-optimisation-of-animal-breeding-programmeslec...
3. Meuwissen, T. H. Estimation of effects of quantitative trait loci in large complex pedigrees / T. J. Meuwissen, M. E. Goddard // Genetics. – 1997. – Vol. 146. – P. 409–416.
4. Hazel, L. N. The selection index--then, now, and for the future / L. N. Hazel, G. E. Dickerson, A. E. Freeman // Dairy J. Dairy Sci. – 1994. – Vol. 77(10). – P. 3236-3251.
5. DeVries, A. G. A model to estimate economic values of traits in pig breeding / A. G. DeVries // Livestock Production Science. – 1989. – Vol. 21. – P. 49-66.
6. Tess, M. W. Simulation of Genetic Changes in Life Cycle Efficiency of Pork Production, II. Effects of Components on Efficiency / M. W. Tess, G. L. Bennett, G. E. Dickerson // Journal of Animal Science. – 1983. – Vol. 56, Issue 2. – P. 354–368.
7. Houska, L. Economic weights for production and reproduction traits of pigs in the Czech Republic / L. Houska, M. Wolfova, J. Jaromír // Livestock Production Science. – 2004. – Vol. 85. – P. 209-221.
8. Economic values for traits of pigs in Hungary / L. Houška [et al.] // Czech. J. Anim. Sci. – 2010. – Vol. 55. – P. 139-148.
9. Impact of crossing system on relative economic weights of traits in purebred populations. / M. Wolfova [et al.] // J. Anim. Breed. Genet. – 2001. – Vol. 118. – P. 389-402.
Review
For citations:
Khramchanka M.M., Romanenko A.V., Nevar K.V. INFLUENCE OF SELECTION AND GENETIC PARAMETERS ON THE ACCURACY OF INDEX ESTIMATION (BY THE EXAMPLE OF PIG BREEDING). Zootechnical Science of Belarus. 2023;58(1):119-129. (In Russ.)
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