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当前位置: 首页 > 文章 > 酵母β-葡聚糖对早期断奶羔羊生产性能和采食行为的影响 草业学报 2013,22 (4) 212-219
Position: Home > Articles > Effects of yeast β-glucan on production performance and eating behavior of early-weaned lambs Acta Prataculturae Sinica 2013,22 (4) 212-219

酵母β-葡聚糖对早期断奶羔羊生产性能和采食行为的影响

作  者：
魏占虎;李冲;李发弟;马友记;王维民;姜仲文;周勇
单  位：
甘肃农业大学动物科学技术学院;甘肃省永昌肉用种羊场
关键词：
早期断奶羔羊;酵母β-葡聚糖;生产性能;采食行为
摘  要：
选用体重和出生日期相近的甘肃肉用绵羊新品种选育群初生羔羊50只(其中公羔30只、母羊20只),按同质原则分为5组(每组公羔6只、母羔4只),在15～91日龄分别饲喂酵母β-葡聚糖添加量为0.00,37.50,75.00,112.50和150.00mg/kg的饲粮,研究饲粮中添加酵母β-葡聚糖对28日龄早期断奶羔羊生产性能和采食行为的影响。结果表明,37.50,75.00和112.50mg/kg的添加量均显著提高了试验全期羔羊的末重和平均日增重(P<0.05);150mg/kg的添加量提高了15～28日龄羔羊的平均日增重(P=0.088);112.50mg/kg的添加量提高了29～42日龄和43～56日龄羔羊的末重和平均日增重(P<0.01),降低了43～56日龄羔羊的料肉比(P<0.01);37.50和75.00mg/kg的添加量提高了57～70日龄和71～91日龄羔羊平均日增重(P<0.01),降低了料肉比(P<0.01)。112.50mg/kg的添加量增加了55～56日龄羔羊的反刍次数(P<0.05)和90～91日龄羔羊的反刍时间(P<0.01)。75.00mg/kg添加量增加了55～56日龄和90～91日龄羔羊的反刍时间(P<0.01),增加了55～56日龄羔羊的反刍次数(P<0.05)。37.50,75.00,112.50和150.00mg/kg的添加量分别增加纯收入81.33,94.71,85.10和24.17元/只。综合各项指标,以75.00mg/kg的添加量较为适宜。
译  名：
Effects of yeast β-glucan on production performance and eating behavior of early-weaned lambs
作  者：
WEI Zhan-hu1,LI Chong1,LI Fa-di1,MA You-ji1,WANG Wei-min1, JIANG Zhong-wen2,ZHOU Yong1(1.College of Animal Science and Technology,Gansu Agriculture University,Lanzhou 730070,China; 2.Gansu Yongchang Meat Sheep Breeding Farm,Yongchang 737200,China)
关键词：
early-weaned lambs;yeast β-glucan;production performance;eating behavior
摘  要：
The effects of yeast β-glucan on production performance and eating behavior of lambs weaned at 28 days of age were investigated.A single factor experimental design was used and fifty lambs(Gansu meat sheep new breeding population,male∶female ratio=6∶4 for better homogeneity) were randomly allotted to 5 groups with 10 replicate lambs in each group.Lambs in group A were fed basal diets,while those in groups B to E were fed basal diets supplemented with 37.50,75.00,112.50 or 150.00 mg/kg yeast β-glucan.The final weights(P<0.05) and average daily gain(ADG)(P<0.05) of lambs fed diets with 37.50,75.00 and 112.50 mg/kg yeast β-glucan were significantly higher than those of group A after-91 days.The ADG of lambs fed a diet with 150.00 mg/kg yeast β-glucan was higher than in the control group after 15-28 days(P=0.088).The final weights(P<0.05) and ADG(P<0.01) of lambs fed a diet with 112.50 mg/kg yeast β-glucan were significantly higher than those of group A after 29-42 days and after 43-56 days respectively.The ratio of feed to gain(F/G) of lambs fed a diet with 112.50 mg/kg yeast β-glucan was significantly lower than that of group A at 43-56 days(P<0.01).The final weight(P<0.01) and ADG(P<0.01) of lambs fed diets with 37.50 and 75.00 mg/kg yeast β-glucan after 57-70 days and 71-91 days,were significantly higher than those of group A although the F/G ratio was significantly(P<0.01) lower.The ruminating times of lambs treated with 112.50 mg/kg yeast β-glucan was higher than those of group A after 55-56 days and after 90-91 days(P<0.05,P<0.01).The ruminating time of lambs treated with 75.00 mg/kg yeast β-glucan was significantly(P<0.01) higher than those of group A after 55-56 days and after 90-91 days.Compared with group A,groups B to E had benefited more,with 81.33,94.71,85.10 and 24.17 Yuan/lamb respectively.The optimum diet for early-weaned lambs was a supplement of 75.00 mg/kg yeast β-glucan.

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