摘要
本试验选取21头10月龄、体重26kg左右的湘东黑山羊,随机分成3组,其中A组为对照组,饲喂基础日粮,B组和C组为试验组,分别在饲喂基础日粮的基础上,补饲尿素含量为7%和10%的尿素糖蜜舔砖,以研究尿素糖蜜舔砖对山羊增重效果的影响。结果表明:补饲尿素糖蜜舔砖后,湘东黑山羊营养状况大大改善,增重速度得到不同程度的提高。补饲舔砖的B、C试验组日增重分别为0.12kg和0.15kg,比对照组分别高50%和87.5%,试验C组比试验B组高2 5%,经方差分析差异及显著(P<0.01)。试验B、C组中每只羊比对照组分别多收入8.34元和17.13元。从而也得出10%尿素添加比7%尿素添加的舔砖补饲山羊的效果要好。
This test selects 21 10-month-old eastern Hunan black goats, each weight about 26 grams. These goats are randomly divided into three groups. Group A for the control group, are fed basal diet. Group B and Group C are the test groups, fed the urea molasses blocks whose urea content is respectively 7% and 10% besides the basal diet, to test the effect of urea molasses blocks on weight gain of goats. The results show that: feeding urea blocks, the nutritional status of eastern Hunan black goats have been greatly improved; weight gain speed in various degrees has been increased. The test groups B and C, which fed the urea blocks, average daily gain are 0.12 kg and 0. 15 kg respectively, and 50% and 87.5% higher than the control group. Group C is 2.5% higher than group B and the difference is significant ( P 〈 0.01 ) by the variance analysis. The earning of every goat in group B and C is respectively 8.34 and 17.13 yuan higher than the control group. Thus the effect of the urea block contained 10% urea is better than the one contained 7% urea.
出处
《家畜生态学报》
2008年第5期93-95,共3页
Journal of Domestic Animal Ecology
基金
湖南省农业厅资助项目(03-1-09)
关键词
舔砖
山羊
增重
经济效益
urea blocks, goats, weight gain, economic benefits