Department of Animal Science and Veterinary Medicine, Tra Vinh University, Tra Vinh City, Vietnam.
Department of Animal Breeding and Genetics, Vietnam National University of Agriculture, Hanoi, Vietnam.
Arch Razi Inst. 2024 Apr 30;79(2):345-354. doi: 10.32592/ARI.2024.79.2.345. eCollection 2024 Apr.
In the era of free antibiotics used in animal production, the application of feed additives should be prioritized to improve poultry health and production. The present study was conducted to evaluate the influences of garlic fermented by spp. on the growth rate, intestinal microorganisms, and immune response of turkey broilers. A completely randomized design was used, involving 90 turkey broilers aged 1-56 days, with five treatments and three replicates per treatment. The birds were given feed and water for the entire experiment period. The treatments included the supplementation of aqueous extract from fermented garlic (FG) to drinking water. The results showed that broilers supplemented with 0.8% FG exhibited the largest final body weight (1,158 g/bird), body weight gain (19.64 g/bird/day), and significantly improved feed conversion ratio (1.962) while decreasing the feed intake of turkey broilers from to 1-56 days. The immune organ indices, including the spleen, thymus, and bursa of Fabricius indices, were increased in the 0.6% FG treatment group (<0.05), while antibody titers (at 28 and 42 days of age) were improved in the 0.6% and 0.8% FG treatments (<0.05). and spp. were not detected in the intestines of these birds, while the amount of was reduced (<0.05) and spp. increased (>0.05) without a significant effect. It can be concluded that supplementation with 0.8% FG improved growth performance, and 0.6% FG may enhance the immunity of turkeys. Moreover, 0.6% and 0.8% FG could be widely used for poultry production.
在动物生产中自由使用抗生素的时代，应优先应用饲料添加剂来改善家禽的健康和生产。本研究旨在评估大蒜经 spp.发酵后对火鸡育雏生长速度、肠道微生物和免疫反应的影响。采用完全随机设计，共涉及 90 只 1-56 日龄火鸡，每个处理 3 个重复，每个重复 3 只鸡。试验期间鸡只自由采食和饮水。处理包括在饮水中添加发酵大蒜的水提物（FG）。结果表明，饲粮中添加 0.8%FG 的火鸡表现出最大的末重（1158g/只）、增重（19.64g/只/天）和最佳的饲料转化率（1.962），同时降低了 1-56 日龄火鸡的采食量。0.6%FG 处理组的免疫器官指数（包括脾脏、胸腺和法氏囊指数）显著提高（<0.05），0.6%和 0.8%FG 处理组的抗体效价（28 和 42 日龄）提高（<0.05）。肠道中未检测到 spp.，而数量减少（<0.05）， spp.增加（>0.05），但无显著影响。综上所述，饲粮中添加 0.8%FG 可提高生长性能，0.6%FG 可能增强火鸡的免疫力。此外，0.6%和 0.8%FG 可广泛用于家禽生产。
