The effect of different variants of pig introductory crossing on the variability of blood protein metabolism

Abstract

The article considers the issues of changing the variability of protein metabolism in blood serum, namely indicators. Purebred Poltava meat breed main boars of different genotypes were studied: group I (control) – individuals obtained without the use of introductory crossing, group II (experimental) – individuals obtained by introductory crossing with the Finnish Landrace breed, group III (experimental) – individuals obtained by introductory crossing with the Early-maturing meat breed. In boars of all these examined groups, the obtained average values of protein metabolism indicators did not differ significantly from each other, however, some features of the indicators depending on the genotype were revealed. In boars obtained using various variants of introductory crossing (experimental groups), the average value of total protein in blood serum exceeded the limits of reference values. The introduction of the Finnish Landrace blood to the Poltava meat breed boars in order to improve meat qualities leads to the formation of a genetically determined higher level of biosynthetic processes in the body, manifested in the stabilization of protein anabolism in the body and an increase in the intensity of its catabolism processes. The introduction of the Early-maturing meat breed to the Poltava meat breed boars in order to improve adaptive qualities leads to stabilization of protein metabolism indicators characterizing both anabolism and catabolism.