摘要
The effects of a multi-strain probiotic (protexin) on broiler growth performance, carcass parameters and economic efficiency were studied. For this purpose, 270 day-old broiler chicks were randomly divided into three experimental groups A, B and C, with 90 chicks in each group having three replicates. Group A was fed commercial broiler diet without supplementation of protexin (control) and groups B and C were fed diets containing protexin 100 and 110g/t in starter and 50 and 55 g/t in finisher diets, respectively. Feed and water were offered ad libitum. The results showed that weight gain and feed conversion ratio were significantly (p<0.05) improved in chicks fed on protexin-supplemented diets compared to control diets. Weight gain of the chicks fed on diet C was significantly (p<0.05) better than chicks on diet B. Feed conversion ratio was non-significantly different in both the protexin-supplemented groups. Differences in feed intake, meat composition, dressing percentage and empty organ weights among all the diets were non-significant. However, abdominal fat content was reduced significantly (P<0.05) in supplemented groups. The study suggests that protexin supplementation is beneficial for better weight gains, feed efficiency and economic efficiency in broiler chicks.
摘要译文
多株益生菌（protexin）对肉鸡生长性能，胴体参数和经济效益的影响。为了这个目的，270天大的肉鸡，随机分为三个实验组A，B和C，与90小鸡每组有三个重复的。roup一个喂商业肉鸡日粮没有protexin的补充（对照组）和B组和C组饲喂含装订饮食protexin 100和110克/吨启动，50和55克/吨饲料，分别。饲料和水提供自由采食。结果表明，增重和饲料转化率分别为显著（P 0。05）雏鸡饲喂protexin为辅的饮食相比，控制饮食的改善。饲喂饲料C雏鸡体重增加是显著（P 0.05），比饮食B.小鸡更好饲料转化率为非显著中均protexin补充的基团不同。在饲料摄取量的差异，肉组合物，屠宰率和所有的饮食中的空器官重量是非显著。然而，腹部脂肪含量在补充组显著（P 0.05）减少。研究表明，补充protexin有利于更好的增重，饲料效率和经济效益的肉鸡。
M. I. Anjum, A. G. Khan, A. Azim and M. Afzal1. EFFECT OF DIETARY SUPPLEMENTATION OF MULTI-STRAIN PROBIOTIC ON BROILER GROWTH PERFORMANCE[J]. Pakistan Veterinary Journal, 2005,25(1): 25-29