INFLUENCE OF AMBIENT-TEMPERATURE ON FEEDING-ACTIVITY PARAMETERS AND DIGESTIVE FUNCTION IN DOMESTIC-FOWLS
INFLUENCE OF AMBIENT-TEMPERATURE ON FEEDING-ACTIVITY PARAMETERS AND DIGESTIVE FUNCTION IN DOMESTIC-FOWLS
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DOI：
10.1016/0031-9384(86)90106-x
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发表时间：
1986-01-01
影响因子：
2.9
通讯作者：
SAVORY, CJ
中科院分区：
文献类型：
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作者：
SAVORY, CJ
为了更好地了解家禽在不同环境温度下调节摄食量的方式，对驯化(8℃)的未成熟母鸡的摄食活动参数、饮水量、食物通过率、表观消化率和肠道尺寸进行了测量。C)，中等(20度。C)和温暖(32度。C)环境。在8度。与摄氏20度相比，C度的鸟有更长的两餐间隔(p<；0.05)，吃更多的食物，餐内吃得更快，消化食物的效率更高。C.在32度。他们每天吃的食物更少，喝的水更多，水/食物的摄入量比20度时更高，进食速度更慢，食物通过速度更慢，腺胃、胃和盲肠比20度时小。C.得出的结论是，温度之间的每日食物摄入量的差异与用餐大小和用餐速度的差异比用餐频率的差异更密切地相关。温度对行为体温调节、饮酒和食物通过率的影响都会影响所显示的摄食活动模式。
In order to better understand the way in which domestic fowls regulate their food intake at different ambient temperatures, measurements were made of feeding activity parameters, drinking, rate of food passage, apparent digestibility and gut dimensions of immature female fowls acclimated to cool (8.degree. C), moderate (20.degree. C) and warm (32.degree. C) environments. At 8.degree. C birds had longer (p < 0.05) intervals between meals, ate larger meals, ate faster within meals and digested their food more efficiently than at 20.degree. C. At 32.degree. C they ate less food per day, drank more water, had a higher water/food intake ratio, ate slower within meals, had a slower rate of food passage, and had smaller proventriculi, gizzards and caeca than at 20.degree. C. It is concluded that differences in daily food intake between temperatures are associated more closely with differences in meal size and rate of eating within meals than with differences in meal frequency. Effects of temperature on behavioural thermoregulation, drinking and rate of food passage all influence patterns of feeding activity shown.