determination of optimum levels of energy and protein in grower diet of japanese quail (coturnix coturnix japonica)

نویسندگان

محمد یازرلو

کارشناس ارشد گروه علوم دام و طیور، پردیس ابوریحان، دانشگاه تهران، پاکدشت ـ ایران داود شریفی

دانشیار گروه علوم دام و طیور، پردیس ابوریحان، دانشگاه تهران، پاکدشت ـ ایران فرید شریعتمداری

استاد گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران ـ ایران عبدالرضا صالحی

دانشیار گروه علوم دام و طیور، پردیس ابوریحان، دانشگاه تهران، پاکدشت ـ ایران

چکیده

in order to determine the optimal levels of energy and protein in grower diet of japanese quail, 360 dayold japanese quails were used in a 3×3 factorial arrangement of dietary treatments that comprised threelevels of metabolisable energy (2750, 2850, and 2950 kcal/kg) and three levels of crude protein (24, 26and 28 percent) with four replicates per treatment in a completely randomized design. feed intake andbody weight were measured weekly and feed conversion ratio was calculated. at 35 d of age, four birds(from both sexes) from each replicate were randomly selected and killed following blood sampling toevaluate carcass traits. the blood samples were assayed for the sera concentrations of growth hormone.results indicated that birds fed on diets containing 2850 kcal/kg metabolisable energy and 26 percentprotein had higher daily weight gain and better feed conversion ratio and carcass yield (p

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عنوان ژورنال:
تولیدات دامی

جلد ۱۵، شماره ۱، صفحات ۱-۱۰

کلمات کلیدی
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