[Objective]This study was conducted to explore the effects of compound traditional Chinese medicine supplementation on production performance and reproductive function of forced molting laying hens.[Method]A total of 600 forced molting Lohmann Pink laying hens at 980 days were randomly divided into 4 groups with 5 replicates per group and 30 laying hens per replicate,which were blank group(group C)and low-dose(L),medium-dose(M)and high-dose(H)compound traditional Chinese medicine groups,respectively.The hens in group C were fed a basal diet,and the hens in groups L,M and H were fed the basal diet supplemented with 0.25％,0.5％and 1％compound traditional Chinese medicine,respectively.The experiment lasted for 42 days.Laying rate,egg weight,feed intake and feed to egg ratio were recorded every day during the experiment.Blood,ovary and oviduct tissues of laying hens were collected on day 21 and 42,serum reproductive hormone levels were detected,reproductive organ index was calculated,and tissue sections of ovary and oviduct tissues were made to observe the tissue morphology.[Result]After different dosages of compound traditional Chinese medicine were added to the basic diet,compared with group C,the laying rate of forced molting laying hens in all dosages of compound traditional Chinese medicine groups was significantly increased(P＜0.05),and the ratio of feed to egg was significantly decreased(P＜0.05).Day 42 of the test,the phenomenon of heterophil cell infiltration in the ovary of L and H groups was reduced,and the ovary index of each dose compound traditional Chinese medicine group was significantly increased on day 21(P＜0.05),and the ovary and oviduct index of H group was significantly increased on day 42 of the test(P＜0.05).The contents of progesterone and prolactin in M and H groups were significantly increased on day 21(P＜0.05),the contents of progesterone,prolactin and follicle-stimulating hormone in M group were significantly increased on day 42(P＜0.05),and the contents of follicle-stimulating hormone in H group were significantly increased(P＜0.05).[Conclusion]Dietary addition of compound traditional Chinese medicine could improve the production performance and reproductive function of forced molting laying hens.
关键词
复方中药/强制换羽/蛋鸡/生产性能/生殖功能
Key words
compound traditional Chinese medicine/forced molting/laying hens/production performance/reproductive function
维普
万方数据