Kemin Industries South Asia Private Limited, India.
West Bengal University of Animal and Fishery Sciences, India.
Poult Sci. 2017 Aug 1;96(8):2614-2622. doi: 10.3382/ps/pex079.
The intestinal gut health is one of the primary determinants of broiler growth and performance. Among the various enteric diseases, necrotic enteritis (NE) is an enterotoxemic disease caused by Clostridium perfringens, which can result in severe economic losses in poultry farming. Antibiotics like bacitracin methylene disalicylate (BMD) and avilamycin (AVL) are commonly used antibiotic growth promoters (AGP) in poultry feed to control necrotic enteritis in birds. Bacillus subtilis PB6 was reported to prevent necrotic enteritis and improve performance in birds. This paper investigated the influence of Bacillus subtilis PB6 in improving the performance of broiler birds in comparison with BMD and avilamycin. A 35 day trial was conducted with 240 day-old commercial broiler chicks (VenCobb 400), which were divided into four treatment groups, where each treatment group was composed of 6 replicates each containing 10 birds, for a total of 60 birds per treatment. The treatment groups included a negative control (no AGP), Bacillus subtilis PB6, BMD, and avilamycin. The parameters analyzed included body weight, feed conversion ratio (FCR), mortality, villus histomorphometry, and European efficiency factor (EEF). Bacillus subtilis PB6 significantly (P < 0.05) improved body weight and FCR (8 points) compared to the control. The group supplemented with B. subtilis PB6 or BMD had higher (P < 0.05) body weight compared to all other treatment groups. The supplementation of B. subtilis PB6 significantly improved the villus height (P < 0.05) compared to control and other AGP groups. The EEF was found to be the highest in the B. subtilis PB6 supplemented group at 35th day as compared to other treatment groups. The combined data from this study indicate that supplementation of B. subtilis PB6 improves overall performance of broilers compared to BMD and avilamycin, and can be used as potential AGP replacement in poultry farming.
肠道健康是肉鸡生长和性能的主要决定因素之一。在各种肠病中，坏死性肠炎（NE）是由产气荚膜梭菌引起的一种肠毒血症，可以导致家禽养殖的严重经济损失。杆菌肽锌（BMD）和那西肽（AVL）等抗生素通常被用作家禽饲料中的抗生素生长促进剂（AGP）来控制鸟类的坏死性肠炎。枯草芽孢杆菌 PB6 已被报道可预防坏死性肠炎并改善禽类的性能。本文研究了与 BMD 和那西肽相比，枯草芽孢杆菌 PB6 对提高肉鸡性能的影响。进行了为期 35 天的试验，使用 240 日龄商业肉鸡（VenCobb 400），将其分为四个处理组，每个处理组由 6 个重复组成，每个重复包含 10 只鸡，每个处理组共有 60 只鸡。处理组包括阴性对照（无 AGP）、枯草芽孢杆菌 PB6、杆菌肽锌和那西肽。分析的参数包括体重、饲料转化率（FCR）、死亡率、绒毛组织形态计量学和欧洲效率因子（EEF）。与对照组相比，枯草芽孢杆菌 PB6 显著（P < 0.05）提高了体重和 FCR（提高了 8 分）。补充枯草芽孢杆菌 PB6 或杆菌肽锌的组的体重高于所有其他处理组（P < 0.05）。与对照组和其他 AGP 组相比，补充枯草芽孢杆菌 PB6 显著提高了绒毛高度（P < 0.05）。在第 35 天，补充枯草芽孢杆菌 PB6 的组的 EEF 最高，与其他处理组相比。本研究的综合数据表明，与杆菌肽锌和那西肽相比，补充枯草芽孢杆菌 PB6 可提高肉鸡的整体性能，可作为家禽养殖中潜在的 AGP 替代品。
