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China/Asia On Demand
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Feeding Effects of Straw and Hay Bricks
Author(s): 
Pages: 24-26
Year: Issue:  4
Journal: CHINA DAIRY CATTLE

Keyword:  秸秆干草块奶牛;
Abstract: 选择30头11~12龄的后备牛、24头一胎泌乳牛进行分组试验,把玉米秸干草块与当地秋白草、东北羊草以及玉米青贮的饲喂效果进行对比验,结果表明:对于后备牛,试验组(玉米秸干草块)比对照组玉米青贮和当地秋白草)日增重提高449(P<0.01),体斜长增5.0厘米(P<0.01),每千克增重饲料成本减少2.70元.对于泌乳牛,试验Ⅰ组(玉米秸干草块)比对照组(玉米青贮和东北羊草)头日产奶增加0.19千克,头日饲料成本减少1.56元,头日净增效益1.94元;试验Ⅱ组(玉米青贮和玉米秸干草块)比试验Ⅰ组头日产奶增加1.98千克,头日饲料成本增加1.10元,头日净效益2.86元;试验Ⅱ组比对照组头日产奶增加2.17千克,头日饲料成本减少0.46元,头日净增效益4.80元.应用玉米秸草块替代日粮中的当地秋白草、东北羊草,能够提高奶牛日增重、增加产奶量、降低饲料成本,可获得明显经济效益.
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