单 位：
山东农业大学动物科技学院山东省动物生物工程与疾病防治重点实验室
关键词：
八角油;蚯蚓肽;杆菌肽锌;肉鸡;抗氧化性能;免疫;肠道菌群
摘 要：
试验旨在研究饲用抗生素替代品对肉鸡生产性能、抗氧化性能、免疫性能和肠道菌群的影响。选用1日龄爱拔益加肉鸡384只,随机分为4个处理。对照组饲喂基础饲粮,试验组分别在基础饲粮中添加0.5 g/kg八角油、1 g/kg蚯蚓肽和0.02 g/kg杆菌肽锌。试验期为42 d。结果显示:与对照组相比,试验组42日龄体重、1~21日龄和1~42日龄平均日采食量,1~42日龄平均日增重均显著提高(P<0.05)。与对照组和蚯蚓肽组相比,八角油组和杆菌肽锌组1~21日龄和1~42日龄料重比显著降低(P<0.05)。与对照组相比,饲粮中添加八角油显著提高肝脏、血清21日龄和42日龄超氧化物歧化酶(SOD)和谷胱甘肽过氧化物酶(GSH-Px)活力(P<0.05),并显著降低丙二酸(MDA)含量(P<0.05)。杆菌肽锌组42日龄血清、21日龄和42日龄肝脏抗氧化性能显著改善(P<0.05)。相比于对照组,饲粮中添加八角油、蚯蚓肽和杆菌肽锌显著提高脾脏指数(P<0.05),42日龄盲肠大肠杆菌和乳酸菌数量均显著改善(P<0.05)。结果表明,饲粮中添加0.5 g/kg八角油或1 g/kg蚯蚓肽均可改善肉鸡生产性能,提高抗氧化性能和免疫性能。
译 名：
Effects of Substitutes of Feed Antibiotic on Growth Performance, Antioxidant Property, Immune Function and Intestinal Microorganism in Broilers
作 者：
DING Xiao;YANG Zaibin;REN Xiaojie;College of Animal Science and Technology, Shandong Agricultural University,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention;
关键词：
star anise extraction;;earthworms;;Bacitracin zinc;;broiler;;antioxidant property;;immune;;intestine microorganism
摘 要：
The experiment was conducted to investigate the effects of substitutes of feed antibiotic on growth performance,antioxidant property, immune function and intestinal microorganism of broiler chickens. Three hundred and eighty-four1-day-age Arbor Acres broilers were randomly allocated to 4 treatments. The birds were fed corn-soybean meal based diets supplemented with 0.5 g/kg star anise extraction, 1 g/kg earthworm and 0.02 g/kg Bacitracin zinc for 42 days. The results showed that the experiment treatments had higher body weight at 42 days of age, average daily feed intake at1 to 21 and 1 to 42 days of age, and average daily gain at 1 to 42 days of age than those of the control treatment(P<0.05). The star anise extraction and Bacitracin zinc treatment had higher feed conversion than those in the control and earthworm group during 1 to 21 and 1 to 42 days of age(P<0.05). The star anise treatment had increased activities of superoxide dismutase(SOD) and glutathione peroxidase(GSH-Px) but decreased content of malonaldehyde(MDA) in liver and serum at 21 days and 42 days of age compared with the control treatment(P<0.05). And the Bacitracin zinc treatment also had improved antioxidant property in serum at 42 days of age and in liver at 21 and 42 days of age(P<0.05). The experiment treatments had increased the spleen index(P<0.05), and reduced E. coli count and increased Lactobacillus count in cecum at 42 days of age compared to the control treatment(P<0.05).These results indicated that dietary supplemented with 0.5 g/kg star anise extract and 1 g/kg earthworm could improve growth performance, antioxidant property and immune function in broilers.
