اثر کاربرد چربی تو کاهش سطح پروتئین بر بازده اقتصادی جوجه های گوشتی

اثر منابع مختلف چربی بر عملکرد جوجه های گوشتی

Effect of different sources of fat on performance of broiler chicks was studied. Three hundred and thirty six chicks were divided into 42 groups of 8 chicks per group. Seven isoenergetic and isonitrogenous diets, mainly based on corn and soybean meal were prepared and fed. These treatments were as follows: corn + soybean meal + (5% tallow, 5% cotton seed crude oil, 5% cotton seed soapstock, 2.5...

اثر منابع مختلف چربی بر عملکرد جوجه های گوشتی

Effect of different sources of fat on performance of broiler chicks was studied. Three hundred and thirty six chicks were divided into 42 groups of 8 chicks per group. Seven isoenergetic and isonitrogenous diets, mainly based on corn and soybean meal were prepared and fed. These treatments were as follows: corn + soybean meal + (5% tallow, 5% cotton seed crude oil, 5% cotton seed soapstock, 2.5...

تعیین سطح مطلوب انرژی و پروتئین و اثر کاربرد چربی در جیره جوجه های گوشتی در شرایط استرس گرمایی بلندمدت

به منظور ارزیابی مهمترین عوامل تغذیه ای موثر در جیره جوجه های گوشتی تحت شرایط استرس گرمایی دو آزمایش انجام شد. در هر آزمایش 200 جوجه نر و 200 جوجه ماده یکروزه در حرارت بالا و مداوم (32 c) بر روی بستر پرورش یافتند. هر دو آزمایش بصورت فاکتوریل (2×2×2) در قالب طرح بلوکهای کامل تصادفی با 5 تکرار و 10 جوجه نر یا ماده در هر تکرار انجام گرفت . تیمارهای آزمایشی در آزمایش اول شامل دو سطح انرژی (2900 و 3...

تأثیر پروبیوتیک تپاکس و سطح پروتئین جیره بر عملکرد جوجه های گوشتی

This experiment was conducted to compare the effect of probiotic thepax® in diets with different quantities of protein on the performance of Cobb-500 broiler chickens and their serum antibody level against Newcastle disease vaccine (NDV). Two basal diets were formulated based on NRC (1994) recommendations which had NRC (sufficient protein diet) and 90% NRC (low protein diet) for protein. The ba...

تأثیر پروبیوتیک تپاکس و سطح پروتئین جیره بر عملکرد جوجه های گوشتی

This experiment was conducted to compare the effect of probiotic thepax® in diets with different quantities of protein on the performance of Cobb-500 broiler chickens and their serum antibody level against Newcastle disease vaccine (NDV). Two basal diets were formulated based on NRC (1994) recommendations which had NRC (sufficient protein diet) and 90% NRC (low protein diet) for protein. The ba...

اثر تغذیه سطوح مختلف پروتئین و ترئونین بر پاسخ¬های ایمونولوژیک جوجه¬های گوشتی