Ale Khim B, Scott Jarvis, Okere Chukewueme, Abrahamsen Frank W, Gurung Reshma, Gurung Nar K
Department of Agricultural and Environmental Sciences, College of Agriculture, Environment and Nutrition Sciences, Tuskegee University, Tuskegee, AL 36088, USA.
Animals (Basel). 2022 Nov 28;12(23):3318. doi: 10.3390/ani12233318.
Distillers dried grains with solubles (DDGS) produced in US are predominately low fat, as the economics favor separating as much oil as possible for sale as renewable diesel feedstock and also for use in swine and poultry feed. This study aimed to evaluate the effect of feeding different amounts of low-fat DDGS (LF-DDGS) on growth performance, growth efficiency, rumen fermentation, blood metabolites, and carcass characteristics of Kiko crossbred wether goats. Twenty-four goats, 5−6 months of age, were randomly assigned to one of the four experimental diets (n = 6/diet), 0%, 10%, 20%, and 30% LF-DDGS on an as-fed basis, and fed for 84 days. Data collected were analyzed using an orthogonal contrast test for equally spaced treatments. Average total gains, average daily gains, and gain-to-feed ratios were similar among the treatments (p > 0.05). Rumen acetate, propionate, and butyrate concentrations and acetate: propionate ratios were similar (p > 0.05) among treatments. There were no differences (p > 0.05) among treatments for dressing percentage, rib eye area, and backfat thickness. Findings suggest that at least up to 30% LF-DDGS can be included in diets of castrated male goats without affecting production performance and carcass characteristics.
美国生产的玉米干酒糟及其可溶物（DDGS）脂肪含量普遍较低，因为从经济角度考虑，尽可能多地分离出油脂作为可再生柴油原料出售以及用于猪和家禽饲料是有利可图的。本研究旨在评估饲喂不同量的低脂DDGS（LF-DDGS）对Kiko杂交阉公羊的生长性能、生长效率、瘤胃发酵、血液代谢物和胴体特性的影响。将24只5至6月龄的山羊随机分配到四种试验日粮之一（每组n = 6），日粮中LF-DDGS的添加量分别为0%、10%、20%和30%（按饲喂基础计算），并饲喂84天。收集的数据使用等间距处理的正交对比试验进行分析。各处理组之间的平均总增重、平均日增重和增重/饲料比相似（p > 0.05）。各处理组之间瘤胃乙酸、丙酸和丁酸浓度以及乙酸:丙酸比值相似（p > 0.05）。各处理组之间的屠宰率、肋眼面积和背膘厚度没有差异（p > 0.05）。研究结果表明，在去势公山羊的日粮中至少可添加30%的LF-DDGS，而不会影响生产性能和胴体特性。
