摘要
以生长獭兔为对象，研究了日粮中添加不同浓度的硝酸稀土对其日增重、屠宰性能、肉品品质和毛皮品质的影响，结果表明：每千克日粮添加７０、１５０、２５０、３５０ｍｇ的硝酸稀土对生长獭兔的日增重、饲料转化率、经济效益、毛皮品质均有良好影响，对屠宰率和肉品品质无明显影响。其中以２５０ｍｇ组效果最佳，日增重、饲料转化率分别比对照组提高２１．４４％（Ｐ＜０．０１）和１６．６４％，每千克增重成本比对照组降低１５．６６％，其增重效果显著高于７０ｍｇ组，其他组间差异不显著（Ｐ＞０．０５）。７０～２５０ｍｇ剂量时，随添加量增加增重效果越明显，而添加量达３５０ｍｇ时增重效果低于２５０ｍｇ组。
Rex were employed to investigate effect of diets with different rare-earth nitrate contain on daily-gain, slaughter performance, meat quality and fur quality. The results indicated that:①All diets with rare-earth nitrate of 70, 150, 250, 350 mg/kg have positive influence on daily-gain and feed conversion, but no significant influence on carcass percentage and meat quality. ②Diet with 250 mg rare-earth nitrate has the best result. Compared with control group, daily gain increased by 21.44%, feed conversion by 16.64%. ③While Supplementary rare-earth ranged from 70 to 250 mg/kg, daily gain improved with increase of supplement.
出处
《中国养兔杂志》
1998年第2期19-23,共5页
Chinese Journal of Rabbit Farming(CJRF)
