The results of toxicological evaluation of 'concentrate bardjanoj liquid' (CBL) a new fodder additive are presented. It was shown on one generation of rats that CBL at dose of 1 g and 10 g per 1 kg of body mass had no an embryotoxic, gonadotoxic and teratogenic effects. However long-term intake of CBL during 5 month with diet of rats caused the changes in rat body. It was found increasing of relative weights of kidney, spleen and heart, decreasing of contents of total lipids, phospholipids and cholesterol in rat liver. Also the desquamative enteritis in some cases with ulcers was found. These data did not allow to recommend CBL as fodder additive in studied doses.
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