E. I. Serdyukov

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The results of monitoring the main productivity indices of pigs bred for a long time in the Stavropol krai and presently imported breeds are given. The adaptation level of natural resistance, which indicates better survival of progeny of local genotypes, is established.
The results of analyzing the reproductive qualities of purebred and crossbred pigs obtained from regionalized and imported animals are given. The best two- and three-breed crosses with a high heterotic effect with respect to fattening and meat qualities are revealed.
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