Justification of the duration of the periods of rearing, rearing and fattening piglets, taking into account the peculiarities of postnatal immunophysiological development

Scientific, production and laboratory experiments were carried out on 2 groups of piglets-analogues of 15 heads each. From the age of 1 to 60 days, they were kept in a mother pigsty, then after castration (borovki) up to 300 days of life (duration of studies) - in a fattening pigsty. The Borovki of group 2 against the background of OR were used trepel in combination with iodomidol according to the scheme developed by us. The peers of group 1 served as a control. The assessment of the age dynamics of the intensity of growth, metabolic and immune factors in experimental animals was carried out in the phases of newborn, lactic feeding, sexual and physiological maturation. In this context, the immunophysiological expediency of the duration of technological periods of keeping piglets (suckling - rearing, rearing and fattening) in the range from 1 to 30-45 days, from 31-46 to 180-200 and from 181-201 to 210-230 days of life, respectively, is scientifically substantiated.