日粮中添加不同比例苜蓿对舍饲羊生产性能影响的研究

发布时间：2018-05-15 17:44

本文选题：苜蓿 + 舍饲羊　；参考：《宁夏大学》2015年硕士论文

【摘要】：本论文是在舍饲羊的日粮中添加不同比例的苜蓿来研究其对舍饲羊血液生理生化指标、生长状况、表观消化率的影响。旨在寻求舍饲羊日粮中添加苜蓿干草的最适添加量,从而充分利用苜蓿的营养特性使舍饲羊能够更加快速的成长,在生产实践中提供数据支持及科学理论依据。研究结果表明：日粮中添加苜蓿干草对舍饲羊的平均日增重、平均日干物质消耗量、毛利润、日增益和料重比都有一定的影响,其中以添加40%的平均日增重和日干物质采食量差异显著(P0.05),其日增益最高为1.15元。在舍饲羊的日粮中添加苜蓿干草对舍饲羊的干物质、氮、粗脂肪、酸性洗涤纤维、中性洗涤纤维、总能在采食量、粪中营养物质以及消化率上有一定的影响。添加40%苜蓿干草在干物质和粗纤维的消化率中效果最佳。在舍饲羊的日粮中添加苜蓿干草可对舍饲羊的血中尿素氮(BUN)含量、总蛋白(TP)含量、葡萄糖(Glu)含量血液生理生化指标有一定的影响,但差异不显著(P0.05)。试验证明,在舍饲羊日粮中添加40%苜蓿干草可以达到较好的效果。试验证实：舍饲羊的饲粮中添加苜蓿干草要适宜,其比例不能超过40%,否则会造成饲料的浪费,降低经济效益,同时又不能过少,否则达不到效果。因此,舍饲羊日粮中以添加40%比例苜蓿干草的效果最好,今后可在生产中广泛的推广和应用。
[Abstract]:In this paper, the effects of different proportion of alfalfa on blood physiological and biochemical indexes, growth status and apparent digestibility of house-fed sheep were studied. The purpose of this study was to find out the optimum amount of alfalfa hay in the diet of house feeding sheep, so as to make full use of the nutritional characteristics of alfalfa to make the sheep grow faster, and to provide data support and scientific and theoretical basis in production practice. The results showed that the average daily gain, average daily dry matter consumption, gross profit, daily gain and feed weight ratio of the sheep fed with alfalfa hay were affected. The average daily gain (ADG) and daily dry matter intake (ADFI) of 40% were significantly different (P0.05), and the maximum daily gain was 1.15 yuan. The addition of alfalfa hay to the diet of house feeding sheep had a certain effect on dry matter, nitrogen, crude fat, acid detergent fiber, neutral detergent fiber, total intake, nutrients in feces and digestibility. Adding 40% alfalfa hay had the best effect on the digestibility of dry matter and crude fiber. The addition of alfalfa hay to the diet of house-fed sheep had a certain effect on the contents of blood urea nitrogen bun, total protein TPN and glucose Glu-blood physiological and biochemical indexes, but the difference was not significant (P 0.05). The experiment showed that 40% alfalfa hay was added to the diet of sheep. The experiment proved that the proportion of alfalfa hay should be suitable and the proportion of alfalfa hay should not exceed 40%, otherwise it would cause the waste of feed, reduce the economic benefit, and at the same time, not too little, otherwise the effect could not be achieved. Therefore, the effect of 40% alfalfa hay added in the diet was the best, and it could be widely used in production in the future.
【学位授予单位】：宁夏大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S826.5

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