复合饲料添加剂对育肥羊增重及经济效益的影响

Effects of compound feed additives on the weight gain and economic benefits of fattening sheep

[目的]研究复合饲料添加剂对育肥羊增重及养殖效益的影响,为其在育肥羊生产中的应用提供依据。[方法]挑选适宜的4月龄小尾寒羊分为4组:①将30 kg左右的46只小尾寒羊公羊随机分为对照组Ⅰ和试验组Ⅰ,即分别在日粮基础上添加0、7.7 g复合饲料添加剂;②将40 kg左右的40只小尾寒羊公羊随机分为对照组Ⅱ和试验组Ⅱ,即分别在日粮基础上添加0、10 g复合饲料添加剂,进行对比试验,预试期7 d,试验期42 d。[结果]试验组Ⅰ和Ⅱ的肉羊增重和平均日增重均显著高于对照组Ⅰ和Ⅱ,且试验组Ⅱ增加的收入与增加的饲喂成本差值为31.12元。[结论]在基础日粮中添加复合饲料添加剂可以显著提高育肥羊的增重及经济效益,有效促进育肥羊的生长发育。在本试验条件下,每天每只羊混饲10 g复合饲料添加剂能够有效降低饲养成本,缩短育肥周期,提升养殖效益。

The effects of compound feed additives on the weight gain and breeding efficiency of fattening sheep were studied to provide a basis for their application in fattening sheep production.[Methods]Suitable small tailed Han sheep at the age of 4 months were selected and divided into 4 groups.46 small tailed Han sheep rams weighing about 30 kg were randomly divided into control groupⅠand experimental group I,where 0 and 7.7 g of compound feed additives were added to the diet,respectively.40 small tailed Han sheep rams weighing about 40 kg were randomly divided into control group Ⅱ and experimental group II,where 0 and 10 g of compound feed additives were added to the diet with the pre-trial period of 7 days and the trial period of 42 days.[Results]The overall gain of weight and average daily gain of mutton sheep in experimental groups Ⅰ and Ⅱ were significantly higher than those in control groups Ⅰ and Ⅱ,and the difference between the increased income and the increased feeding cost of experimental group Ⅱ was 31.12 yuan.[Conclusions]Adding compound feed additives to the basic diet can significantly improve the weight gain and economic benefits of fattening sheep,effectively promoting the growth and development of fattening sheep.Under the conditions of this experiment,mix-feeding 10 g compound feed additives per sheep per day can effectively reduce feeding costs,shorten fattening cycles,improve breeding efficiency and produce considerable economic benefits.