ВОЗРАСТНЫЕ И ПОРОДНЫЕ ОСОБЕННОСТИ ЭРИТРОЦИТАРНЫХ ПОКАЗАТЕЛЙ У ХРЯКОВ-ПРОИЗВОДИТЕЛЕЙ

Abstract

The age variability of red blood parameters, especially their correlations with cortisol in boars of different breeds, was studied. The work was performed on the basis of the pig breeding cluster of LLC "Agrofirma Ariant" in 2017-2020. The object of research was the boars-producers of the Duroc, Yorkshire and Landrace breeds. It was found that the number of red blood cells, hemoglo-bin, hematocrit and ESR increased by 8.67; 15.01; 12.03 and 46.48 % of the Duroc breed, by 6.67; 11.85; 5.53 and 27.51 % – Yorkshire and 2.23; 8.89 in pigs by 3 years of age, compared with 1 year of age; 7.79 and 48.85 % - Landrace, initiating an increase in the volume of red blood cells by 4.41-5.65 % and the degree of their volume heterogeneity by 7.47-11.94 %; the average content of he-moglobin in the red blood cell increases by 4.88-6.70 % while maintaining the average concentration of hemoglobin in the red blood cell (28.65-29.80 g/DL); the number of platelets fluctuates in the range of 203.91-249.36 thousand/ml. with age, it decreases by 18.58-29.11 %. The level of the hor-mone negatively correlates with 59.26-66.67 % of red blood cell indicators, determining the non-genomic nature of its impact. It is reliably correlated with the number of red blood cells. The value of the correlation coefficients for durks is r= -0.35±0.12 – -0.74±0.23; Yorkshires r= -0.70±0.21 – -0.87±0.30 and landraces r= -0.61±0.19 – -0.90±0.28.