Abstract: In order to study the effects of compoud additive on reproductive performance of minks, the 36 female breeder mink and 6 male mink were selected and assigned to control and experiment groups. The control group minks were fed with basic diet for 120 days, while experimental group eat the compoud additive (3 g/d) except with basic diet. The reproductve performance indicators of both two groups were meatured, including male mink sperm activity, conception rates, averagenumber ofpiglets, weaned survival rates and weaned average weight. The results showed that compared with control group of the same age, the number of male mink sperm activity, conception rates, averagenumber of piglets, weaned survival rates and weaned average weight all increased obviously. The results showed that the compoud additives could improve reproductive performance obviously. The increasing rates of above reproductve performance of experiment group were respectively 2.44%,3.93%,13.04%,2.49% and 1.86% compare with control group.

Key words: additive; mink; reproductive performance