【摘要】 根据贵州农村的实情 ,研制了尿素复合营养舔砖 ,目的是提高农村养牛、养羊的科技含量和专业户的经济效益。本试验选用 18只黑山羊 ,随机分为 3组 ,在全放牧的条件下 ,对照组不补料 ,试验 1组每天头均补饲玉米粉 10 0 g ,试验 2组补饲尿素复合营养舔砖 ,36d的试验期 ,试验 2组比对照组和试验 1组日增重提高 55 17% (P <0 0 5)和 2 3 2 9% (P <0 0 5) ,试验 2组分别比对照组、试验 1组头均增收 4 0 1元和 2 58元更多还原

【Abstract】 black goats were chosen and divided into three groups at random.Under the totally grazed condition,the control group was given no other feed whereas treatment group one and treatment group two were supplied with corn meal by 100 gram per day per animal and feeding brick of compound urea nutrient respectively.After 70 days’ treatment,daily gain in group two was 55.17% higher than in the control(P<0 05) and 23.29% higher than in group one(P<0 05);average revenue for each goat in group two was 4.01 yuan(RMB) more than in the control and 2.58 yuan(RMB) more than in group one, thus distinct economic effect being achieved.更多还原