PREDICTING RESPONSE TO INDEX SELECTION IN PIG BREEDING
Abstract
The research to be predict the effect of selection at different intensity of selection according to complex breeding indices. The effect of selection of population of pigs of maternal breeds of the republic at different intensity of selection and matching of prospective fathers and mothers based on index selection. Correlation between the index score and the actual indicators of the selected traits has been established. Use of the best boars (5-10%) and sows (10-30%) selected according to the complex indices makes it possible to obtain replacement young boars with the average daily weight gain of 11-27 grams higher than their parents, and backfat thickness of 0.12-0.14 mm less, with multiple pregnancy rate of 0.03-0.09 animals higher than the average values of the initial experimental population, with insignificant or zero growth in parameters of litter weight at birth and the average weight of piglets by weaning. The predicted superiority of gilts over the average indicators of parents will be 11-16 grams in average daily weight gain, in backfat thickness - (-0.12) mm, in multiple pregnancy rate - 0.01-0.03 animals annually.
About the Authors
N. M. Khramchanka
Research and Practical Center of the National Academy of Sciences of Belarus for Animal Breeding
Russian Federation
Russian Federation
A. V. Romanenko
Research and Practical Center of the National Academy of Sciences of Belarus for Animal Breeding
Russian Federation
Russian Federation
K. V. Nevar
Research and Practical Center of the National Academy of Sciences of Belarus for Animal Breeding
Russian Federation
Russian Federation
References
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Review
For citations:
Khramchanka N.M., Romanenko A.V., Nevar K.V. PREDICTING RESPONSE TO INDEX SELECTION IN PIG BREEDING. Zootechnical Science of Belarus. 2021;56(1):123-132. (In Russ.)
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