Fang Chengkun, Yu Qifang, He Jianhua, Fang Rejun, Wu Shusong
College of Animal Science and Technology, Hunan Agriculture University, Changsha 410128, China.
College of Life Sciences, Hunan Normal University, Changsha 410081, China.
Animals (Basel). 2022 Aug 17;12(16):2096. doi: 10.3390/ani12162096.
The present study was conducted to evaluate the effects of unconventional feedstuff such as wheat, broken rice, distillers dried grains with soluble (DDGS), and wheat bran, replacing 15% of the corn in the basal diet and the supplementation of bacterial phytase on nutrition digestibility. A total of 500 yellow-feathered broilers with similar body weights of 1.65 ± 0.15 kg were divided into 10 dietary treatments with 5 replicates per treatment (5 male and 5 females per cage). The AME and AIDE were significantly higher when supplied with phytase (p < 0.01) in the DDGS group. The ileal and total tract digestibility of calcium and phosphorus were significantly increased in the phytase-supplied group (p < 0.001). Additionally, the ileal digestibility of CP was increased when phytase was supplemented (p < 0.001). The results infer that the wheat, broken rice, DDGS, and wheat bran had no negative effect when replacing 15% corn. Supplementing 0.02% phytase in their diets can effectively optimize nutrient digestibility in yellow broilers.
本研究旨在评估用小麦、碎米、玉米酒糟（DDGS）和麦麸等非常规饲料原料替代基础日粮中15%的玉米以及添加细菌植酸酶对营养物质消化率的影响。总共500只体重相近（1.65±0.15千克）的黄羽肉鸡被分为10种日粮处理组，每组5个重复（每笼5只雄性和5只雌性）。在DDGS组中，添加植酸酶时AME和AIDE显著更高（p<0.01）。添加植酸酶的组中钙和磷的回肠及全肠道消化率显著提高（p<0.001）。此外，添加植酸酶时CP的回肠消化率提高（p<0.001）。结果表明，小麦、碎米、DDGS和麦麸替代15%玉米时没有负面影响。在其日粮中添加0.02%植酸酶可有效优化黄羽肉鸡的养分消化率。
