不同营养水平补饲对湘东黑山羊肥育羔羊生产性能的影响  

Effects of Supplementary Feeding on the Performance of Xiangdong Black Goat Fattening Kid

作　　者：刘鹤翔[1] 欧阳叙向[1] 邓灶福[1] 尹小平[1] 谭胜国[1] 

机构地区：[1]湖南生物机电职业技术学院,长沙410127

出　　处：《中国草食动物》2006年第6期9-11,共3页China Herbivores

基　　金：湖南省农业厅<湘东黑山羊优良特性及高效生产关键技术研究>(03-01-09)课题资助

摘　　要：采用80只3～4月龄的湘东黑山羊羔羊,研究3种不同营养水平补饲对肥育羔羊日增重、经济效益的影响.分别在冬、春两个季节进行为期2个月的补饲.试验按完全随机单因子设计,每个季节设4个处理,即3个精料补饲组与1个对照组,每个处理10头湘东黑山羊.参考NRC(1981)的山羊饲养标准设计补充饲料配方,每个季节的3个补饲试验组饲粮的精粗比分别按30:70、40:60、50:50确定,平均补饲量依次按100、200、300g/(d·只).结果表明:冬季补饲试验1、2、3组平均日增重分别为62.75、80.00和85.92 g,分别比对照组提高42.06%、81.12%、94.52%,差异显著(P＜0.05)或极显著(P＜0.01).春季补饲试验1、2、3组平均日增重分别为85.33、93.50和100.83 g,分别比对照组提高38.00%、51.22%、63.08%,差异均为极显著(P＜0.01).从季节对补饲效果来看,冬季的高精料补饲与低精料补饲(精粗比=30:70)差异显著;春季的精料补饲量对增重影响不大.冬季补饲以精粗料比40:60为好,春季以30:70为好.冬季补饲使试验1、2、3组比对照组增加利润分别为5.14、9.23、4.49元/只;春季补饲使试验1、2、3组比对照组增加利润分别为8.97、5.98、2.35元/只.经济效益比较好的补饲量是,冬季187.5 g/d,春季154.1 g/d.Ratio of concentrate to roughage forage of diet at 3 supplementary feeding experiments in each season was 30∶70, 40∶60, 50∶50 , signed supplementary formula according to goat feeding standard of NRC (1981), respectively .In the 3 groups , average supplementary quantity was supplied according to 100, 200, 300 g/d .The results indicated : in winter trial ,average daily grain of 3 supplementary treatments were 62.75,80.00,85.92g , and improved 42.06%, 81.12%, 94.52% than that of control, respectively (P<0.05) and (P<0.01) . In spring trial, average daily grain of 3 supplementary treatments were 85.33, 93.50, 100.83g, and improved 38.00%, 51.22%, 63.08% than that of control, respectively (P<0.01) and (P<0.05) . From season for supplemental effects, there was significant difference (P<0.05) between high (ratio of concentrate to roughage forage=40∶60,50∶50) and low (ratio of concentrate to roughage forage=30∶70) concentrate supplementary feeding in winter , but there was no significant difference in spring trial. Better groups of supplemental effect were trial 2 group in winter and trial 1 group in spring.

关 键 词：湘东黑山羊 肥育羔羊 补饲 营养水平 日增重 

分 类 号：S827.6[农业科学—畜牧学]