Activity of natural resistance factors in serum of suckling and weaned piglets' blood at different zinc level in ration

I. M. Martynyshyn

Data about influence of 30, 60, 75, 100, 120, 150 mg/kg zinc additions in composition of ration for piglets, fed during 35 days, on natural resistance factors activity in serum are presented in this article. It was established, that bactericyde, lysocyme and complementary activities of serum of suckling and weaned piglets are directly dependent on ration zinc level, decreased in piglets after weaning from sows and after 10 days returned to preweaning level.

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