Abstract
The objective of the study was to analyze the efficiency of selection of the maternal breed pigs based on their scores for the indices of complex traits. Databases of phenotypes in the Large White pigs (n = 23 753) for reproductive performance (farrowing performance) and meat and fattening productivity in progeny (n = 34 866) produced from the livestock population at OOO Selection and Hybrid Center (Verkhnyaya Khava, Voronezh oblast) were used. During the study, the economic values for reproductive traits, meat quality, and fattening performance were determined; their trait heritability coefficients were calculated. As a result, the selection index equations for estimating the animal breeding values have been derived to calculate the selection index based on productivity (SI1) and the overall selection index (SI2) for comprehensive evaluation of livestock population and subsequent selection of specimens in order to produce purebred or crossbred progeny. It is recommended to use the SI1 scores in selecting sows and boars for purebred breeding and the SI2 scores in crossbreeding to produce the replacement F1 gilts.
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This study is carried out within State Task AAAA-A19-119052190018-3, Ministry of Education and Science of the Russian Federation.
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Statement of the welfare of animals. All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.
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Translated by O. Zhiryakova
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Melnikova, E.E., Nikitin, S.A., Kabanov, A.V. et al. Selection Indices Used in Different Breeding Systems with Pigs of Maternal Breeds. Russ. Agricult. Sci. 46, 503–508 (2020). https://doi.org/10.3103/S1068367420050134
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DOI: https://doi.org/10.3103/S1068367420050134