Improvement of Pork Quality at Different Values of Pig Productivity
This article examines how to increase pork meat productivity and quality indicators through the use of crossbreeding. The aim is to increase the meat productivity of animals; reduce losses during production and processing; and improve the criteria for assessing the quality of meat and the organization of its rational use. The purpose of our research is to study the productive quality of the steppe type of pigs, used in the Rostov region in breeding and crossing systems, and the complex of biological and internal indicators in connection with the defects in the quality of pork. Four groups with 16 animals in each were formed: the first group – with the intensive cultivation technology, included pigs of the DM-1 breed, the second – SM-1, the third – the SM-1 × DM-1 crossbreed, the fourth – the DM-1 × SM-1 crossbreed. Analysis of the raw meat showed that the pork had a good ability to emulsify and gel, and had a high nutritional value. The toxicity index in the muscle and fat tissue samples corresponded to the first permissible toxicity group. The study shows the advantages of crossbred individuals over purebred ones, which can be explained by the consequences of heterosis. According to the research results, the use of pig breeding in the industrial production of pork can be recommended in order to improve feedstock and meat productivity, biological and interior indicators, as well as the quality of raw meat.
Keywords: pork, crossbreeding, meat productivity, meat quality, steppe type of pigs, interior indicators, fattening qualities, biological and nutritional value of pork
 Afanasyev, M. A., et al. (2007). A Comprehensive Assessment of Natural Resistance of Farm Animals and how to Increase it. Izvestiya Vuzov. North Caucasus Region. Natural Sciences, vol. 2, pp. 128-130.
 Kazantseva, N. P., Vasilyeva, M. I. and Sergeeva, I. N. (2019). Pig Productivity Indicators for Different Breeding Patterns. Perm Agrarian Bulletin., vol. 4, issue 28, pp. 99-106.
 Kazarovets, I. N. (2020). Feeding and Meat Qualities of Young Pigs of Various Genotypes Bred in the Republic of Belarus. Livestock and Veterinary Medicine, vol. 1, pp. 8-11.
 Lysenko, F. A., Kovalenko, V. N. and Skomorokh, V. N. (2011). Feeding and Meat Qualities of Pigs of Various Pedigree Combinations. Scientific and Technical Bulletin of the Institute of Animal Husbandry of the National Academy of Agrarian Sciences of Ukraine, vol. 104, pp. 123-127.
 Mamyshev, S. A. and Malakhanov, D. A. (2009). Reproductive, Fattening and Meat Qualities of Pigs. Bulletin of Veterinary Medicine, vol. 1, issue 48, pp. 56-60.
 Moroz, O. G., et al. (2019). Slaughter and Meat Qualities of Highly Productive Pig Hybrids. Innovations in Animal Husbandry - Today and Tomorrow. A Collection of Scientific Articles based on the Materials of the International Scientific-Practical Conference Dedicated to the 70th anniversary of the Republican Unitary Enterprise “Scientific Practical Center of the National Academy of Sciences of Belarus on Animal Husbandry” Minsk: Republican Unitary Enterprise “Belarusian Science Publishing House. pp. 103-107.
 Morozova, L. A., et al. (2018). Feeding and Meat Qualities of Purebred and Hybrid Young Pigs. Chief Livestock Specialist, vol.11, pp. 3-9.
 Perevoiko, Z. A. and Semenov, A. S. (2017). The Quality of Carcasses and Meat of Pigs, Depending on the Genotype and Live Weight during Slaughter. Presented at Collection of Scientific Papers on the Materials of the I International Scientific-Practical Perm Institute of the Federal Penitentiary Service (Perm) Conference, pp. 96-100
 Nisova, V. S. (2017). The Influence of the Genotype and Live Weight of Pigs on Meat Quality. In Collection Of Materials of the IV International Festival of Cadets, Students and Students. Perm Institute of the Federal Penitentiary Service (Perm)
 Sokolov, N. V. and Svistunov, A. A. (2016). Feeding and Meat Qualities of Pigs in Purebred Breeding and Crossbreeding. Effective Livestock, vol. 8, issue 129, pp. 14-15.
 Talalaev, D. V. (2008). Feeding and Meat Qualities, Quality of Meat of Young Pigs of Different Genotypes. Presented at Proceedings of Kuban State Agrarian University. (issue 15), pp. 133-138.
 Tarichenko, A. I. and Grishchenko, A. I. (2015). Nutritional and Biological Value of Pork. In Innovative Technologies Of Food Production Materials Of The International Scientific-Practical Conference. Don State Agrarian University. pp. 136-140.Minsk.
 Cherekaeva, E. A. (2011). Feeding and Meat Qualities of Pigs of Different Genotypes for the RYR1 Gene. Pig Breeding, vol. 5, pp. 14-17.
 Chernova, S. E. and Kazakov, V. S. (2016). Slaughter and Meat Qualities of Young Pigs with Purebred and Industrial Crossbreeding. Science and the World., vol. 10, issue 38, pp. 56-58.
 Sheiko, I. P., et al. (2015). Feeding and Meat Qualities of Young Pigs of Various Genotypes. In Collection of scientific papers of the North Caucasus Research Institute of Animal Husbandry. vol. 4, Issue 1, pp. 58-63