饲粮粗蛋白质、能量水平对3岁梅花公鹿鹿茸生长和体增重的影响

为探讨 3岁梅花鹿生茸期饲粮适宜营养水平 ,本研究采用 2 (CP∶2 1%和 19% )× 2 (GE∶16 74MJ/kg和 15 90MJ/kg)二因子交叉设计 ,选用 3岁 (二锯 )梅花公鹿 6 7头 ,分为 4个试验组 ,进行了饲养试验和消化试验。试验结果表明 ,饲粮蛋白质水平对鹿体增重有显著影响 (P <0 0 5 ) ,在本试验所设能量浓度范围内 ,饲粮蛋白质水平为 19%处理组鹿体增重显著高于 2 1%蛋白组 ;鹿茸产量组间差异不显著 (P >0 0 5 ) ;饲粮粗蛋白质水平对蛋白质消化率和能量消化率均有显著影响 (P <0 0 5 ) ;3岁梅花鹿生茸期饲粮中能量、蛋白质适宜水平分别为 15 9～ 16 7MJ/kg (GE)和 19% (CP) ;平均每头鹿每天对消化能和可消化蛋白质的需要量分别为 2 9 9～ 31 3MJ和 388～ 394 g。

Effects of Different Levels of Dietary Protein and Energy on the Antler Yield and Weight during the Antler Growth Period for Three Years Old Male Sika Deer

In order to estimate the optimal dietary energy concentration and crude protein level during the antler growth period for three years old sika deer, feeding and digestion trials were conducted with 67 stags at this time The animals were randomly assigned to 4 groups The results showed that the daily weight gains were significantly influenced by the dietary protein( P <0 05) The apparent digestibility of crude protein increased with increasing dietary protein levels The optimal dietary energy concentration and crude protein levels were 15 9 to 16 7?MJ/kg(GE) and 19% CP respectively The daily requirements of digestible energy and digestible crude protein per deer were 30 to 31 MJ and 388 to 395?g respectively during the antler growth period for three years old sika deer