用于可持续肉鸡生产的育肥期日粮中的替代饲料原料。
Alternative feed ingredients in the finisher diets for sustainable broiler production.
作者信息
El-Deek Ahmed A, Abdel-Wareth Ahmed A A, Osman Mona, El-Shafey Mohammed, Khalifah Ayman M, Elkomy Alaa E, Lohakare Jayant
机构信息
Poultry Production Department, Alexandria University, Alexandria, 21545, Egypt.
Department of Animal and Poultry Production, Faculty of Agriculture, South Valley University, Qena, 83523, Egypt.
出版信息
Sci Rep. 2020 Oct 20;10(1):17743. doi: 10.1038/s41598-020-74950-9.
The main objective of this study was to evaluate the utilization of alternative protein feed ingredients including sunflower meal (SFM), corn gluten meal (CGM), and dried distillers' grains with solubles (DDGS) as a mixture in a partial replacement of soybean meal (SBM) in broiler finisher diets with different protein levels and also to evaluate their effect on birds' performance, environmental aspects of litter, cecal microbes, and economic prospects. A total of 576 (19 days old) Cobb 500 broiler chicks were fed eight finisher diets consisting of 4 control (CTL) diets based on SBM with different crude protein (CP) levels (CTL21, CTL20, CTL19, and CTL18, containing 21%, 20%, 19%, and 18% CP, respectively) and 4 test diets with alternative protein sources (APS21, APS20, APS19, and APS18, containing 21%, 20%, 19%, and 18% CP, respectively) using a 15% combination of alternative protein sources (2.5% CGM, 5% SFM, and 7.5% DDGS) until 35 days of age. The results indicated that birds fed test diets APS21 and APS20 recorded the highest (P < 0.05) body weight compared to other treatments, but it was not different than the CTL diets fed at these CP levels. The birds fed CTL18 or APS18 recorded the worst feed conversion ratio (FCR) compared to other treatments. Moreover, birds fed test diet containing APS21 recorded better (P < 0.05) European performance efficiency factor and better economic efficiency when compared to other treatments, but it was not different than CTL21. In addition, birds fed diets APS21 and CTL19 showed significantly increased litter Lactobacillus spp. (P < 0.05) compared to other treatments. Cecal Lactobacillus spp. and Escherichia coli (E. coli) were not affected by CTL or APS diets. The counts of cecal Salmonella spp. increased in the CTL21 group compared to other groups. In conclusion, alternative feed ingredients (protein sources) in broiler finisher diets have positive effects in a sustainable way on the productive performance, litter and cecal microbial counts, and improved economic efficiency when compared to CTL diets.
本研究的主要目的是评估用向日葵粕（SFM）、玉米蛋白粉（CGM）和干酒糟及其可溶物（DDGS）混合作为替代蛋白饲料原料，在不同蛋白质水平的肉鸡育肥期日粮中部分替代豆粕（SBM）的效果，同时评估其对肉鸡生产性能、垫料环境指标、盲肠微生物以及经济前景的影响。总共576只（19日龄）科宝500肉鸡雏鸡被饲喂8种育肥期日粮，其中包括4种基于豆粕的对照（CTL）日粮，其粗蛋白（CP）水平不同（CTL21、CTL20、CTL19和CTL18，分别含21%、20%、19%和18%的CP），以及4种含替代蛋白源的试验日粮（APS21、APS20、APS19和APS18，分别含21%、20%、19%和18%的CP），使用15%的替代蛋白源组合（2.5%玉米蛋白粉、5%向日葵粕和7.5%干酒糟及其可溶物）直至35日龄。结果表明，与其他处理组相比，采食试验日粮APS21和APS20的肉鸡体重最高（P＜0.05），但与这些CP水平下的CTL日粮无差异。与其他处理组相比，采食CTL18或APS18的肉鸡饲料转化率（FCR）最差。此外，与其他处理组相比，采食含APS21试验日粮的肉鸡欧洲生产效率因子更好（P＜0.05），经济效益更高，但与CTL21无差异。另外，与其他处理组相比，采食日粮APS21和CTL19的肉鸡垫料中乳酸杆菌属显著增加（P＜0.05）。盲肠中的乳酸杆菌属和大肠杆菌不受CTL或APS日粮的影响。与其他组相比，CTL21组盲肠沙门氏菌属数量增加。总之，与CTL日粮相比，肉鸡育肥期日粮中的替代饲料原料（蛋白源）对生产性能、垫料和盲肠微生物数量有积极影响，并能提高经济效益，具有可持续性。
Zotero 插件