Effect of Combined Vitamin C and Vitamin E Supplementation on Reproductive Performance and Hatching Rate in Japanese Laying Quail

This study was carried out to evaluate the effect of vitE(Vitamin E)supplementation in combination with vitC(Vitamin C)on reproductive performance and hatching rate of Japanese quail at the age of 59-114 days.A total of 132 laying quails were arranged in a completely randomized design with 3 treatments and 4 replicates,each replicate being 9 female quails and 2 male quails at 59 days of age.The experimental treatments were as follows:control fed the basal diet(KPCS),E125C75 including KPCS supplemented with 125 mg vitE/kg feed combined with 75 mg vitC/kg feed and E125C125 including KPCS supplemented 125 mg vitE/kg feed combined with 125 mg vitC/kg feed.Research results showed that the highest WG(Weight Gain)was in E125C125(30.32 g)and lowest in E125C75(17.37 g).There were no statistically significant differences between treatments in terms of laying rate,feed conversion ratio,egg mass and egg weight.However,hatching rate and bodyweight of quails at 1 day of age were significantly different between treatments,the highest was E125C125(74.37%and 7.43 g),followed by E125C75(70.02%and 7.03 g)and the lowest was control(65.89%and 6.82 g).It can be concluded that E125C125 not only improved laying rate but also increased hatching rate and bodyweight of quail chick.

Effect of Bee Pollen on Reproductive Performance of Broiler Breeders

[Objective]The paper was to verify whether chestnut bee pollen can be used as feed for breeding chickens and its appropriate addition proportion.[Method]A total of 92444-week-old Ross 308 broiler breeders of parent generation with a male to female ratio of 1∶10 were randomly divided into 4 groups,with 3 replicates in each group and 7 cocks and 70 hens in each replicate.The broiler breeders in the control group were fed with the basal diet,and those in experimental groups were fed with the diets supplemented with 0.5%,1.0%and 1.5%chestnut bee pollen.The feeding trial lasted 35 d.[Result]Addition of chestnut bee pollen at different proportions improved the laying rate of breeder hens in different degrees.The experimental group supplemented with 1.5%chestnut bee pollen increased the laying rate by 9.1%,reduced the rate of unqualified eggs(broken eggs,cracked eggs,thin shelled eggs and hard shelled eggs)by 71.4%,increased the fertilization rate of hatching eggs and healthy chick rate by 4.4%and 5.2%,and improved the concentrations of testosterone(T),follicle stimulating hormone(FSH)and luteinizing hormone(LH)in breeder cocks by 60.8%,32.3%and 61.4%,respectively.Statistical analysis showed that the results were significantly different.[Conclusion]Addition of chestnut bee pollen at certain concentration can improve the reproductive performance of breeder cocks and breeder hens,and improve the body immunity.