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The purpose of the search was to investigate the influence of feed additive “Butaselmevit-plus” on the biochemical indices of piglets blood when weaned. The experiments were conducted on the basis of Ltd. “KOSHET” of Mukachevo district, Transcarpathian region. Two groups of pigs were formed – control (C) and experimental (E), in the number of 10 individuals in each group, selected on the basis of analogues – age, breed and body weight. In the suckling period, pigletss were kept under sows in special machines, had constant access to the mother, and from 5 days of age – free access to concentrated feed. The research material was blood collected in the morning by puncture of the cranial vena cava on the 20th day of life (period before weaning), on the 25th day of life (period before weaning), on the 30th day of life (2 days after weaning), for 35 days of life (7 days after weaning), for 40 days of life (12 days after weaning). Weaning of piglets from sows at 28 days of age leads to a slight decrease in total protein and increased activity of aminotransferases. Increased activity of ALAT and ASAT in pigs' serum after weaning from sows reflects the nonspecific response of the organism to the action of stress factors and indicates an increased release of enzymes into the extracellular space. Feeding of piglets with feed additives “Butaselmevitplus” promotes to enhance the protein synthesizing function of the liver and reduce the activity of aminotransferases. The decrease in the activity of aminotransferases in the blood of piglets of the experimental group, indicates that the components of the feed additive counteract the influence of stress, and also contribute to the maintenance the integrity of cell membranes specific to these organ enzymes, which prevents their output from the cells.

Morphological and biochemical indices of piglets’ blood under the action of feed additive “Butaselmevit-plus”