玉米DDGS饲喂肉鸭的营养价值研究

试验用不同添加水平的玉米DDGS代替豆粕饲喂樱桃谷肉鸭,旨在探讨其饲喂肉鸭的营养价值。试验采用单因素完全随机分组设计,共设5个处理组,分别添加0(对照组)、2%、4%、6%和8%的玉米DDGS。每组3个重复,每个重复40只。结果表明:在采食量方面各添加DDGS组与对照组相比有提高的趋势,但差异不显著(P>0.05);在平均日增重和料肉比方面,2%、4%和6%组与对照组差异不显著(P>0.05),而8%组日增重极显著低于对照组(P<0.01),料肉比极显著高于对照组(P<0.01);在饲料增重成本方面,各添加DDGS组均低于对照组。可见,在肉鸭饲料中添加到6%的DDGS不影响肉鸭的生产性能,但是可以明显降低成本,取得较好的经济效益。

Research on the feed value of DDGS in diet of meat duck production

To evaluate the feed value of DDGS in diet of meat duck, six hundred Cherry Valley ducks (12 day-old) were randomly assigned to five treatments which were replicated three times with forty ducks each. Diets were formulated according to NRC(1994) nutrient needs of ducks, containing 0%、2%、4%、6% or 8% DDGS, respectively. The results indicated that: compared with the control group , with the proportion of 2%、4%、6% DDGS in the feed of the trial groups, there are no significant diversity in the average daily gain、average daily feed intake and the feed conversion ratio(P>0.05). Meanwhile ,the groups with 8% DDGS, significant decreased the average daily gain and increased feed conversion ratio(P<0.01). But the diets containing DDGS significant reduced the feed cost compared with the control group(P<0.05). So Cherry Valley ducks diets with additional proportion of 6% DDGS had no influence on growing meat duck production , but can obviously reduced the feed cost and had the great profits.