Effects of Chinese herb feed additives on sperm quality and plasma reproductive hormone in breeder cocks

80 fifty-week-old Nick T breeder cocks were randomly divided into Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴ groups,16 cocks every group.Ⅰ and Ⅱ groups were control groups.Two control groups were fed with basic diets and basic diets with eggs respectively.Ⅲ,Ⅳ and Ⅴ groups were treatment groups.Three treatment groups were fed with basic diets added at doses of 1%,2%,3% Chinese herb feed additives respectively to study effects of Chinese herb feed additives on sperm quality and plasma reproductive hormone in breeder cocks.The results showed that:the diets added with herb feed additives can improve sperm quantity and sperm activity of breeder cocks significantly,and the levels of testosterone,luteinizing hormone and follitropin in plasma of test cocks improved significantly;the increase trend of abnormality rate of sperm was controlled,and 2% group was the best.So it could improve sperm quality and reproduction hormone levels of breeder cocks significantly when added Chinese herb feed additives in diets.The sperm quantity had a significant positive correlation with sperm activity,sperm density and the concentration of T,LH,FSH in plasma(P0.05).The sperm activity had a significant positive correlation with the concentration of T,LH,FSH in plasma(P0.05).The concentration of T in plasma was correlated significantly positive with the concentration of LH,FSH in plasma(P0.05).