TEMPERATURE AND THE GROWTH OF BROILERS
TEMPERATURE AND THE GROWTH OF BROILERS
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DOI：
10.1079/wps19870015
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发表时间：
1987-10-01
影响因子：
2.7
通讯作者：
ROSE, SP
中科院分区：
文献类型：
--
作者：
HOWLIDER, MAR;ROSE, SP
对17篇已发表论文、1篇未发表论文和1篇未发表报告的数据进行了线性和非线性回归方程拟合。在不同温度下饲养的鸡的生长、摄食量、食物转化率和体成分用保持在21℃的肉鸡的生产性能的百分比来表示。在所考察的整个数据范围内(7.2-37.8℃)，混合性群的生长和摄食反应是曲线的。在7.2-21摄氏度的温度范围内，环境温度每升高一摄氏度，其生长和摄食量分别减少0.12%。男性生长速度的下降速度比女性更大。温度每升高一度，屠体脂肪和腹脂分别增加0.8%和1.6%。屠体水分随温度升高而降低，但对屠体蛋白质(以体重百分比表示)无显着影响。
Linear and non-linear regression equations were fitted to the data obtained from 17 published papers and one unpublished papers and one unpublished report. The growth, food intake, food conversion ration and body composition of the birds kept at different temperatures was expressed as a percentage of the performance of the broilers kept at 21.degree.C. Over the whole range of the data examined (7.2-37.8.degree.C) the growth and food intake responses of the mixed sex flocks are curvilinear. Within a range of 7.2-21.degree.C there is a linear response with growth and food intake decreasing by 0.12% respectively for each degree rise in environmental temperature. The rate of decline in growth rate is greater in males than females. Total carcass fat and abdominal fat increases by 0.8% and 1.6% respectively with each degree rise in temperature. Carcass moisture declined with increasing temperature but there is no significant effect on carcass protein (expressed as % of liveweight).