摘要
选择同来源出壳１日龄的爱拔益加肉用雏鸡４４０只，随机分为４组，每组１１０只。１组为玉米日粮（无糙米），２、３、４组依次以糙米取代日粮中玉米５０％、７０％、１００％。采用对比饲养试验，试验期４５ｄ。试验结果：１、２、３和４组鸡试验期末平均体重分别为１９８０、２０６７、２２０６和２３２５ｋｇ；日增重依次为４２７、４４７、４７８和５０４ｇ；与对照１组比较，２、３和４组日增重依次提高４７％、１１９％和１８０％；料肉比依次下降０５％、２９％和７１％；每千克增重耗料成本依次下降００４元、０１３元和０３１元。试验结果表明，随日粮中糙米代用量的增加，试验鸡增重加快，料肉比和增重成本下降。说明糙米作为肉鸡的能量饲料是可行的。
arbor acre broilers were randomly divided into four groups,110 broilers each group.The broiler group1 were fed with maize in the diets only(no brown rice),2,3 and 4 were fed with brown rice substituted for 50%,70%,100% maize in the diets.The trial period was 45d.Average final body weight and average daily gain(ADG)of broilers in group1,2,3 and 4 were 1 980kg and 42 7g,2 067kg and 44 7g,2 206kg and 47 8g,2 325kg and 50 4g,respectively.Compared with group 1,the ADG of broilers in group2,3 and 4 increased by 4 7%,11 9% and 18 0%,respectively and feed conversion ratio and feed cost per kg body gain decreased by 0 5% and 0 04 yuan,2 9% and 0 13 yuan,7 1%and 0 31 yuan.Respectively the results showed that ADG of broiler increased,feed conversion and gain cost decreased,with increasing the amount of brown rice in the diets.Hence,it is possible to use brown rice to substitute for maize.
出处
《湖北农业科学》
1999年第4期50-52,共3页
Hubei Agricultural Sciences
关键词
早籼稻糙米
肉用仔鸡
日增重
饲料报酬
增重成本
brown rice,broiler,average daily gain(ADG),feed conversion raatio,gain cost
