Some biochemical indicators of blood and their variability in boars Poltava meaty breed depending on the genotype
The paper presents the materials of the authors ' own studies of the influence of the genotype on some biochemical parameters of the blood of purebred breeding boars of Poltava meat breed of the main herd. Animals of three breed groups were studied: 1) lines obtained by breeding "in clean" 2) lines obtained by the method of "bloodshed", using the Finnish Landrace 3) lines obtained by the method of "bloodshed", using precocious meaty breed. All boars were in the same conditions of feeding and keeping. In the blood serum of pigs, biochemical parameters were determined by conventional methods: the amount of total protein, the number of albumins, globulins, protein coefficient, urea level, aminotransferase activity (ALT and AST), de Ritis coefficient. In boars of different genotypes, the leveling of the difference in biochemical parameters is noted. However, boars of lines with blood of precocious meat breed have higher biological opportunities to activity in the given climatic and technological conditions, i.e. are more perspective for further selection work. According to the results of the study, pigs of this genotype are characterized by a more stable metabolism, the state of humoral mechanisms of natural resistance of the body, and, consequently, they have the potential for higher productivity. The use of blood shedding of precocious meat breed, to create new lines leads to the solution of problems associated with the reduction of the viability of genetically highly productive animals, adverse effects of unilateral breeding on productivity, adverse technological factors. The obtained data of boars will help to establish the average populational of biochemical status of the breed in these conditions, to monitor and adjust the status of pigs depending on gender and genotype in modern industrial technologies.