Department of Wildlife and Fisheries Sciences, South Dakota State University, Brookings, SD 57007, USA.
J Anim Physiol Anim Nutr (Berl). 2010 Dec;94(6):e348-54. doi: 10.1111/j.1439-0396.2010.01020.x.
A feeding trial was performed to investigate inclusion levels of distillers dried grains with solubles (DDGS) as a fishmeal replacement for juvenile Nile tilapia (Oreochromis niloticus). On a dry matter basis, five isocaloric [19.3 ± 0.4 kJ/g (mean ± SE)], isonitrogenous (39.1 ± 0.5% crude protein) diets were formulated to contain 17.5%, 20%, 22.5%, 25%, and 27.5% DDGS and compared against a 0% DDGS, reference diet (gross energy = 14.5 kJ/g; crude protein = 39.8%). The reference diet resulted in significantly higher body weight gain (BWG), food conversion ratio (FCR), and protein efficiency ratio (PER) than experimental diets except that 17.5% DDGS provided similar FCR and PER. The diet containing 27.5% DDGS had significantly lower FCR and PER values than all other diets even though apparent digestibility did not significantly differ among experimental diets. Although DDGS can be incorporated at higher levels, 20% DDGS provided the highest apparent BWG among experimental diets, while 17.5% promoted the best FCR and PER. Fishmeal may be replaced with low levels of fuel-based DDGS to reduce feeding cost; however, additional supplements should be considered to enhance fish performance.
进行了一项饲养试验，以研究干酒糟及其可溶物（DDGS）作为鱼粉替代物对幼尼罗罗非鱼（Oreochromis niloticus）的适宜添加水平。在干物质基础上，配制了五种等热量[19.3±0.4 kJ/g（平均值±SE）]、等氮（39.1±0.5%粗蛋白）的饲料，分别含有 17.5%、20%、22.5%、25%和 27.5%的 DDGS，并与 0% DDGS 的对照饲料（总能=14.5 kJ/g；粗蛋白=39.8%）进行了比较。除了 17.5%的 DDGS 提供了相似的 FCR 和 PER 外，对照饲料的体重增重（BWG）、饲料转化率（FCR）和蛋白质效率比（PER）显著高于试验饲料。尽管表观消化率在试验饲料之间没有显著差异，但含有 27.5%DDGS 的饲料的 FCR 和 PER 值明显低于其他所有饲料。虽然可以更高水平地添加 DDGS，但 20% DDGS 提供了试验饲料中最高的表观 BWG，而 17.5% DDGS 则促进了最佳的 FCR 和 PER。可以用低水平的燃料型 DDGS 替代鱼粉来降低饲养成本；然而，应该考虑添加额外的补充剂来提高鱼类的表现。
