The relationships of body temperature to weight gain, feed consumption, and feed utilization in broilers under heat stress
نویسندگان
چکیده
منابع مشابه
The relationships of body temperature to weight gain, feed consumption, and feed utilization in broilers under heat stress.
Commercial broiler males were used to evaluate body temperature response to heat stress and its relationship to gain, feed consumption, and feed conversion ratio. Individual gain, feed consumption, and feed conversion ratio were obtained from 28 to 49 d in a heat stress environment (32 C) and compared to a 21 C environment. Body temperatures were measured at 28, 35, and 42 d, then daily from 43...
متن کاملeffect of different levels of feed restriction on performance and body temperature of broiler chickens under heat stress conditions
0
متن کاملPrediction of genetic values for feed intake from individual body weight gain and total feed intake of the pen.
Records of individual feed intake (FI) and BW gain (GN) were obtained from the Germ Plasm Evaluation (GPE) program at US Meat Animal Research Center (USMARC). Animals were randomly assigned to pens. Only pens with 6 to 9 steers (n = 289) were used for this study (data set 1). Variance components and genetic parameters were estimated using data set 1. Estimated genetic values (EGV) for FI were c...
متن کاملتأثیر میزان پروتئین جیره و محدودیت غذایی بر عملکرد و دمای بدن جوجه‌های گوشتی تحت تنش گرمایی
The effect of dietary protein level and feed restriction on performance, body temperature and hematological values was evaluated, using Ross 308 broiler chicks under heat stress. For this purpose, three dietary treatments were fed to broilers during 21 to 42 days of age. Two treatments consisted of diets with protein levels recommended by NRC, 1994 and 85% of NRC recommendation and were fed ad-...
متن کاملتأثیر میزان پروتئین جیره و محدودیت غذایی بر عملکرد و دمای بدن جوجه‌های گوشتی تحت تنش گرمایی
The effect of dietary protein level and feed restriction on performance, body temperature and hematological values was evaluated, using Ross 308 broiler chicks under heat stress. For this purpose, three dietary treatments were fed to broilers during 21 to 42 days of age. Two treatments consisted of diets with protein levels recommended by NRC, 1994 and 85% of NRC recommendation and were fed ad-...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Poultry Science
سال: 1998
ISSN: 0032-5791
DOI: 10.1093/ps/77.2.237