摘要
本试验采用单因子试验设计,选择10日龄健康樱桃谷肉鸭240只,按性别相同,公母各半,体重相近的原则随机分为4个处理,每个处理4个重复,每个重复15只,根据玉米-杂粕型日粮中不同烟酸含量(40ppm、60ppm、80ppm及100ppm)分别饲喂试验肉鸭至31日龄。10～17日龄以烟酸含量为60ppm日增重较好,以烟酸含量为100ppm日粮的料肉比较好;10～24日龄以烟酸含量为60ppm日粮日增重较好,烟酸含量为40ppm的料肉比较好;10～31日龄以烟酸含量为80ppm日粮日增重和料肉比较好。
It was a simple factor experiment. This trial was conducted to determine the niacin suitable requirement of meat-type duck with dietary niacin of 40ppm, 60ppm, 80ppm and 100ppm of miscellaneous meals which would gain the optimal performance. It was corn-mixed meal type diet. According to the sex and weight, 240 healthy cherry valley ducks with 10 days was randomly divided into four groups, each group with four replicates （male： female =1：1） and each replicate with 15 ducks. The results showed： the optimal niacin requirement with 10-17 days to gain weight was 80ppm and to get the feed conversion ratio was 100ppm,with 10-24 days to gain weight was 60ppm and to get the feed conversion ratio was 40ppm,with 10-31 davs to gain weight and to get the feed conversion ratio was 80ppm
关键词
烟酸
杂粕
肉鸭
生产性能
niacin miscellaneous meals meat-type duck requirement
