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Studies on the efficiency of Italian ryegrass utilization in pig feeding
Author(s): 
Pages: 72-78
Year: Issue:  3
Journal: ACTA PRATACULTURAE SINICA

Keyword:  多花黑麦草育肥猪日粮日增重饲料牧草转化效率;
Abstract: 试验在猪日粮中加入25.73%~44.04%的多花黑麦草鲜草(以干物质计的实际采食量)饲喂育肥期的二元杂交肉猪,结果证明多花黑麦草在日粮中由10%增至20%时,日增重由584g/(头·天)增至600g/(头·天);而多花黑麦草在日粮中由30%增至50%时,日增重由512g/(头·天)降至456g/(头·天).第86天时,各试验组间的日增重差异极显著(P<0.0¨.随着多花黑麦草在日粮中的替代量增加,料肉比3.22:1降至2.12:1,各育肥组出栏时,饲料牧草干物质的转化效率为3.15~3.51kg(消耗的DM/1kg活重).试验组5比对照组减少精料消耗30.50%,每头猪节约精料49.16kg,增加收入51.30元.饲喂多花黑麦草对育肥猪的屠宰率、瘦肉率和品质无显著影响.
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