The interior indicators of pig productivity in crossbreeding
DOI:
https://doi.org/10.31548/dopovidi2020.01.010Keywords:
blood, protein, ALT, AST, enzymes, pigs, crossbreedingAbstract
The extensive use of foreign-born pig breeds in crossing and hybridization systems are the prerequisite for continued studies of the connection between blood constituents and productive qualities of crossbred animals. The aim of this article was to investigate the biochemical serum parameters and to determine the correlation between productive qualities and biochemical blood parameters in order to identify the possibility of their early prediction for pigs of mixed breeds.
The studies were conducted at the Freedom Farm Bacon LLC, Kherson region. The purebred pigs ♀LW×♂LW (control group) and two variants of crossbred animals ♀(LW×L) ×♂(D×P) and ♀(LW×L) ×♂(P×D) were used in these studies.
Feeding and keeping conditions were identical for all animal groups according to zootechnical standards. Type of feeding – concentrate. The interior features were studied on 4 month old pigs using the method of Reitman and Frankel. Blood for the study was taken in the morning before feeding by puncturing the orbital venous sinus of the eye. The results of the studies indicate a higher level of protein in the serum of animals with blood of durok and pietraine breeds. Groups ♀(LW×L)×♂(D×P) and ♀(LW×L)×♂(P×D) exceeded the control group on this parameter by 4.80 g/l and 3.0 g/l respectively.According to the ALT level the pigs of genotype ♀(LW×L)×♂(D×P) exceeded the purebred animals by 0.33g/l. In crossbreeding, using meat genotypes, the level of aminotransferases and total serum protein increase. This confirms the higher maturity of such pigs. Correlation relationship between protein content in the serum of 4 month old pigs and age of reaching of living mass 100 kg is established. Levels of protein and blood enzymes determined at an early age make it possible to predict the future productivity of animals.
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