Distillers' dried grains with solubles (DDGS) is an alternative ingredient in poultry diets. However, DDGS has high concentrations of non-starch polysaccharides, which limits its inclusion in broiler diets. The objective of this trial was to evaluate the effect of inclusion level of DDGS in broiler diets from 22 to 42 D of age. A total of 980 22-day-old broilers with an average BW of 923 ± 4 g were distributed in a completely randomized design, with 7 increasing levels of DDGS (0, 10, 40, 70, 100, 130, and 160 g kg⁻¹), with 7 replicate pen per treatment and 20 broilers per pen. The performance parameters evaluated included BWG, feed intake, and FCR. At 42 D of age, 2 broilers per pen were selected to determine blood parameters and then euthanized to evaluate gastrointestinal tract development, carcass yield, and meat quality. The results demonstrated that up to 160 g kg⁻¹ DDGS can be included in broiler diets from 22 to 42 D of age without negative effect on performance, carcass and cut yields, meat quality, and litter characteristics.

酒糟含酒糟（DDGS）是家禽日粮中的替代成分。然而，DDGS具有高浓度的非淀粉多糖，这限制了其在肉鸡日粮中的含量。该试验的目的是评估DDGS在22至42 D岁肉鸡日粮中的添加水平。完全随机设计分配了总共980头22天大的肉鸡，平均体重为923±4 g，其中DDGS的含量增加了7种（0、10、40、70、100、130和160 g kg ^-1），每个处理有7支重复笔，每支有20只肉鸡。评估的性能参数包括BWG，饲料摄入量和FCR。在42 D岁时，每只钢笔选择2个肉鸡以确定血液参数，然后对其实施安乐死以评估胃肠道发育，car体产量和肉质。结果表明，年龄在22至42 D的肉鸡日粮中可添加高达160 g kg ^-1 DDGS，而对生产性能，cas体和减产，肉质和垫料特性没有负面影响。