تأثير أنظمة الإضافة و التقنين الغذائي الزمني في نسبة التصافي و بعض صفات الذبائح لطائر السمان الياباني (Coturnix japonica)‎

Abstract EN

In this study, 960 birds from quail Japanese (576 female and 384 male), were randomly treated to four groups represent lighting systems transactions (continuous lighting, 12, 16 and 18 Lighting hour per day) and four levels of food rationing schedule (ad libitum 6, 9 and 12 feed) hours/day and with three replicates per treatment and by 20 birds (12 females and 8 males) for each replicate for the purpose of studying the effect of different systems of lighting and feed restriction schedule in dressing percentage and some characteristics carcasses of Japanese quail (Coturnix japonica), study results indicated no significant effect of the lighting systems in dressing percentage and the relative weight of breast and thigh for both females and males and study results indicated that the highest relative weight of the liver in females and males reared under continuous lighting effect, which was not significantly different with my treatment lighting 16 and 18-hour light/per day in females, while there was no significant different of lighting systems in the relative weight of the heart and gizzard in females and males and recorded the treatment of continuous lighting the highest percentage abdominal fat pad in females and males, either for the impact of feed restriction schedule factor has been found that of female quail reared under ad libitum feeding and nutrition for 12 hours/day higher carcass for females and males were recorded carcass of birds that gave her fodder for 6 and 9 hours/day higher relative weight of deterministic thigh in the carcass of female and male, while there were no significant differences for the relative weight of the breast in females were observed while of male quail recorded reared under ad libitum feeding higher relative weight to the breast, and male and female registered reared under free feeding highest relative weight of the liver and gizzard while there were no significant differences in the relative weight of the heart, spleen and bursa gland although higher relative weight to abdominal fat pad record in females and males reared under ad libitum feeding effect.