甜高粱干草饲喂小尾寒羊育肥效果试验研究

Experimental study on fattening effect of sweet sorghum hay on Small-Tailed Han sheep

试验旨在探究甜高粱干草作为肉羊育肥饲草的育肥效果及经济效益。采用甜高粱、紫花苜蓿、玉米等3种饲草的晾干秸秆为原料,设计4种粗饲料配比,将28只小尾寒羊分成4组,进行60 d育肥试验,分析各组的采食量、增重量及饲喂效益。结果显示:甜高粱秸秆组平均日采食量1408 g,相比紫花苜蓿干草与玉米秸秆混合组多6.10%,相比甜高粱秸秆与玉米秸秆混合组多9.74%,相比玉米秸秆组多33.84%;甜高粱秸秆组平均日增重164.67 g,相比紫花苜蓿干草与玉米秸秆混合组少2.46%,相比甜高粱秸秆与玉米秸秆混合组多29.15%,相比玉米秸秆组多91.10%;甜高粱秸秆组只均日收益2.70元,相比紫花苜蓿干草与玉米秸秆混合组多0.06元,相比甜高粱秸秆与玉米秸秆混合组多0.73元,相比玉米秸秆组多1.57元。研究表明,利用甜高粱干草搭配适宜的精饲料饲喂肉羊,适口性好、育肥效果明显、收益高,是育肥肉羊的优质饲草。

The purpose of the experiment was to explore the fattening effect and economic benefits of sweet sorghum hay as a fattening forage for mutton sheep.The experiment used the air dried straw of sweet sorghum,alfalfa and corn as raw materials,designed four kinds of roughage ratios,28 Small-Tailed Han sheep divided into four groups,and conducted a 60 day fattening experiment to analyze the feed intake,weight gain and feeding benefit of each group.The results showed that the daily feed intake of sweet sorghum straw group was 1408 g,which was 6.10%more than that of alfalfa hay and corn straw mixed group,9.74%more than that of sweet sorghum straw and corn straw mixed group,and 33.84%more than that of corn straw group.The daily weight gain of sweet sorghum straw group was 164.67 g,which was 2.46%less than that of alfalfa hay and corn straw mixed group,29.15%more than that of sweet sorghum straw and corn straw mixed group,and 91.10%more than that of corn straw group.The daily income of sweet sorghum straw group was 2.70 yuan,which was 0.06 yuan more than that of alfalfa hay and corn straw mixed group,0.73 yuan more than that of sweet sorghum straw and corn straw mixed group,and 1.57 yuan more than that of corn straw group.The experiment indicates that using sweet sorghum dry straw with appropriate concentrate to feed mutton sheep has good palatability,obvious fattening effect and high income,it is a high-quality forage for fattening mutton sheep.