Phenotypic characterization of the immunological status cows of different genotypes
The aim of the study was to examine the constitutional resistance in dairy cattle according to their breeding and genetic affiliation and on the proportion of blood in Holstein black and white cattle using genetic-statistical methods of individual and group assessment. Defined immunological status in Black Pied golshtinizirovannogo holmogorskogo and dairy cattle, which manifests itself with a different degree of individual variability. Was an increase in the level of the studied parameters characterizing resistance in cows with a share krovnosti Holstein more than 75%, especially in immunoglobulin M (p>0.95).