酵母培养物对绵羊生长性能和营养物质消化的影响

Effects of Yeast Culture on Growth Performance and Nutrient Digestion in Sheep

摘要:

为研究酵母培养物对绵羊生长性能和养分消化的影响。采用单因素设计，按体重完全随机地分为 1个对照组、3个试验组；饲粮 YC 添加比例增加，ADG提高，YC添加2%时,F/G降低了8.42%，添加 1%和 2%的YC，NDF 消化率分别增加 23.06%和 32.14%、ADF 消化率分别提高 31.3%和 47.15% 。 添加 1%~2%YC 可改变瘤胃发酵模式，促进生成丙酸，降低料重比，提高绵羊增重和饲料效率。

Abstract:

This study investigated the effects of yeast cultures (YC) on growth performance and nutrient digestion in sheep. This experiment adopted a single factor design, and the groups were randomly divided into 1 control group and 3 test groups according to body weight. The addition of yeast culture in the diet increased the ADG. When YC was added 2%, F/G decreased by 8.42%. With the addition of 1% and 2% YC, the digestibility of NDF increased by 23.06% and 32.14%, and the digestibility of ADF increased by 31.3% and 47.15%, respectively. Adding 1%~2% YC can change the rumen fermentation mode, promote the production of propionic acid, reduce the ratio of feed to weight, and improve the weight gain and feed efficiency of sheep.