肉鸭不同季节、不同月份代谢能需要量及析因模型比较研究  

Study on metabolizable energy requirements and factorial model of cheery valley ducks in different seasons and months

作　　者：窦文洁[1] 杨在宾[1] 杨维仁[1] 姜淑贞[1] 张桂国[1] 

机构地区：[1]山东农业大学动物科技学院

出　　处：《饲料工业》2011年第15期27-30,共4页Feed Industry

摘　　要：研究结合生产实践,采用大群生产试验方法,对标准化饲养的8 540栋鸭舍,健康同源樱桃谷商品鸭苗3 094.4万只,按统一饲养方式和管理程序进行生产试验,结果表明,樱桃谷肉鸭地面平养饲养模式下,春、夏、秋、冬四个季节的代谢能维持需要为每千克代谢体重455.1、305.5、342.8、541.7 kJ,每增重1 kg需要代谢能为16.97、19.86、19.65、15.95 MJ。各季节之间代谢能维持需要量为冬季>春季>秋季>夏季;代谢能增重需要量为夏季>秋季>春季>冬季。按照月份统计,樱桃谷肉鸭代谢能维持需要8月份最低,5月份最高;增重需要8月份最高,5月份最低。研究结果表明,樱桃谷肉鸭地面饲养模式下,夏季代谢能维持需要最低,冬季最高;冬季代谢能增重需要最低,夏季最高。不同季节代谢能需要量可以用以下析因模型预测:春季:MER=16.97BGW+0.455W0.75;夏季:MER=19.86BGW+0.305W0.75;秋季:MER=19.65BGW+0.343W0.75;冬季:MER=15.95BGW+0.542W0.75。式中:MER为肉鸭代谢能需要量(MJ/d);BGW为活体增重(kg);W0.75为代谢体重(kg)。In this paper,a large group of 30.944 million cherry valley ducks were bred and managed in the same way in 8 540 standardized duck sheds in order to study metabolizable energy requirements and factorial model in different seasons and months.The results indicated that metabolizable energy maintenance requirements were 455.1、305.5、342.8、541.7 kJ/kgW0.75 in spring,summer,autumn,winter,respectively.The requirements of metabolizable energy on weight gain were 16.97、19.86、19.65、15.95 MJ/kgBGW.For different months,the metabolizable energy maintenance requirements were lowest in August and highest in May;while the requirements on weight gain were clashing.The factorial models of metabolizable energy maintenance requirements in different seasons of cherry valley ducks were predicted as follows,MER=16.97BGW ＋ 0.455W0.75 in spring,MER=19.86BGW ＋0.305W^0.75 in summer,MER=19.65BGW ＋0.343W^0.75 in autumn,and MER=15.95BGW ＋ 0.542W0.75 in winter.MER,BGW and W^0.75 in these equations indicated metabolizable energy requirements of cherry valley ducks（MJ/d）,live weight gain（kg/d） and metabolic body weight（kg）.

关 键 词：季节 肉鸭 代谢能 营养需要 析因模型 

分 类 号：S816.4[农业科学—饲料科学]