Influence of preservatives on the histopathological picture of some internal organs of minks.

摘要

The study was conducted at the "scanbrown" mink breeding farm. After weaning, the animals were divided into two groups of 50 animals each (treatment, I, and control, II). Both groups were fed a diet with identical composition and energy level, but group I received a dietary preservative and antioxidant additives. Sodium pyrosulfite was added at a dose of 0.2-0.3% ready feed mass and Hadox antioxidant at a dose of 0.15-0.20 g per kg ready feed until November. The slaughtered animals (10 animals from each group) were subjected to postmortem and pathomorphological examinations. Histopathological examinations were carried out on sample specimens of the internal organs essential to the digestive and absorption processes and metabolism (stomach, duodenum, small intestine, large intestine, liver and kidneys). The feed preserved with sodium pyrosulfite and Hadox antioxidant did not show microbiological contamination at a level which would be hazardous to animal health. Supplementing the feed with a preservative and antioxidant resulted in variations within the histopathological changes in the liver of both groups of animals. The kidneys showed slight epithelial steatosis of the I order and convoluted tubules. No pathological changes were recorded in the sections of the mink's alimentary tract..