Abstract
The indicators of growth and development, fattening and meat qualities of pigs of the breeding center “Lozovoe” CJSC “Plemzavod-Yubileyny” of the Tyumen region were evaluated. The indicators that characterize the growth and development of young animals were taken into account: live weight, age, average daily growth. When the live weight of 100 kg was reached, an ultrasound device was used to evaluate the thickness of bacon, the depth of muscles and the yield of lean meat, which are in the database of breeding records for 2011-2020. To characterize the meat qualities, 1144 Landrace piglets were slaughtered, 275 - large white breed, 129 - Pietren breed, 339 hybrids (LxKB), 159 hybrids (LxD), 460 hybrids obtained from boars of foreign selection. A comparative analysis of commercial hybrids of various variants of crossing pigs of domestic and foreign selection is carried out. Processing of the research results was carried out in the laboratory of Molecular diagnostics and Biotechnology of the Don State Agrarian University. The influence of the breed is established.
Highlights
A large number of imported livestock from various countries of Europe and North America are imported to the Russian Federation at pig breeding complexes, the analysis of their adaptation and use is of great importance for the development of regional hybridization systems. [3,4,5]In this regard, one of the important areas of research is the study of the growth, development and formation of meat qualities of domestic and foreign genetic material and the possibility of its further use.Scientific research by many authors and the production practice of the complexes show that improving the quality of meat largely depends on the rational use of the genetic potential of pig breeds
Analyzed meat samples of purebred gilts and commercial hybrids obtained from various breed combinations, the results are shown in table 8
Analysis of slaughter indicators for commercial hybrids over a nine-year period revealed a decrease in live weight of hybrids by 9.7 kg, which affected a decrease in carcass weight by 7.6 kg, fat thickness by 6.8 mm
Summary
A large number of imported livestock from various countries of Europe and North America are imported to the Russian Federation at pig breeding complexes, the analysis of their adaptation and use is of great importance for the development of regional hybridization systems. [3,4,5]. [3,4,5] In this regard, one of the important areas of research is the study of the growth, development and formation of meat qualities of domestic and foreign genetic material and the possibility of its further use. Scientific research by many authors and the production practice of the complexes show that improving the quality of meat largely depends on the rational use of the genetic potential of pig breeds. In this regard, the study of the quality of the imported livestock in the conditions of domestic complexes is of particular importance. Education: “Increasing the genetic potential of farm animals, the effectiveness of its use”, “Determining the effectiveness of using various domestic and imported breeds, types and lines in industrial crossing and hybridization in the breeding system pigs"
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