Thesis (Ph.D.) - Cairo University - Institute of African Research and Studies - Department of Natural Resources

This study was conducted at Agriculture Experiments Station, belonging to Agriculture Faculty, Cairo University, Egypt. The chemical analysis was carried out at the laboratories of Animal Production Research Institute and Animal Health Research Institute. The aim of this work was to investigate the effect of addition of (Ginseng, Methionine, Vitamin E, Folic acid and Zinc) to conventional diet on the fertility and immunity of Japanese quail under hot environment stress during summer season (may -june-july) of Egypt. Birds were fed the basal diet with different additives from 6 to 20 week of age as follow:{control, 300 mg Ginseng, 0.3% Methionine , 200 mgVitamin E, 2 mg Folic acid, 60 mg Zinc / kg basal diet}. A total number of two hundred and sixteen birds of Japanese quail at 6 weeks of age, which distributed randomly into sex treatment groups. Thirty six birds were assigned to each group which divided into three replicates, each containing twelve birds (4 males and 8 females).The main results obtained from this study can be summarized as follows: all dietary supplementation exhibited that live body weight, feed consumption, feed conversion ratio, egg production (egg weight, egg mass, Fertility and Hatchability) (P{u2264}0.05) improved significantly compared to their counterparts in control group. But there was not significantly improved in egg quality compared to their counterparts in control group. Also the statistical analysis revealed that, the supplementation of Ginseng, Methionine, Vitamin E, Folic acid and Zinc exhibited no significant effect in each of blood biochemical measurements like Total Protein, Globulin, Total Lipid, Cholesterol, GPT, GOT, Urea, Creatinin, Calcium and Phosphorus or hormones like Progesterone and Testosterone at 20 wks of age comparing to its counterpart in Control group

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