不同蛋白质水平代乳品对羔羊生长性能的影响

代乳品蛋白质由膨化大豆粉、奶粉、玉米蛋白粉等组成,其水平按一定梯度设计,组成1号、2号、3号、4号四种饲粮。饲养试验选用陶赛特×小尾寒羊F1代的初生公、母羔羊各25只,随机分成5组,每组10只(5♂+5♀),Ⅰ组～Ⅳ组分别饲喂1号～4号代乳品,第Ⅴ组为对照组,自然哺乳。试验结果表明:代乳品蛋白质水平较高者,更有利于羔羊体尺的增加,第Ⅳ组羔羊体高、体长指标和平均日增重好于其它各试验组,但略逊于对照组。

Effect of milk replacers with different protein level on growth performance of lamb

Protein in milk substitutes was provided by expanded soybean,milk powder,corn gluten meal etc. Protein level in milk substitutes was designed by various gradients. Milk substitutes were named No.1,No.2,No.3,No.4. Fifty(25♂+25♀)F1 lambs(Dorset♂×Small tailed sheep♀) were divided into five groups at random,ten lambs in each group(5♂+5♀). GroupⅠ,groupⅡ,groupⅢ and groupⅣ were fed by milk substitutes No.1,No.2,No.3 and No.4 respectively. GroupⅤ was a control group and suckled naturally. The experimental result showed: The higher the lever of the protein,the better the growth of lambs. GroupⅣ's body height,body length,and average daily gain were better than those of the other experimental groups,but a little worse than those of the control group.