蚯蚓抗菌肽对柴鸡生产性能和血清抗氧化指标的影响

Effect of Earthworm Antimicrobial Peptides on Production Performance and Serum Antioxidant Indices of Chai-Chickens

摘要: 试验的目的是研究蚯蚓抗菌肽对柴鸡生产性能和血清抗氧化指标的影响。选取15日龄体重大小相近的雏鸡36只，随机分为4个处理组：对照组口服生理盐水，试验组口服不同剂量的蚯蚓抗菌肽(试验1组：2 mL的蚯蚓肽2倍稀释液，试验2组：2 mL的蚯蚓肽1倍稀释液，试验3组：2 mL的蚯蚓肽原液)。每组3个重复，每个重复3只鸡，试验期为3周。试验结果表明：与对照组相比，口服适量的蚯蚓抗菌肽可显著提高柴鸡日增重和料重比，但各试验组之间差异不显著(P > 0.05)；饲喂蚯蚓抗菌肽柴鸡料重比显著降低(P < 0.05)；并且提高了柴鸡血清抗氧化能力。因此，柴鸡服用适量的蚯蚓抗菌肽可提高其生产性能和血清抗氧化能力。

Abstract: The purpose of the experiment is to study the effects of earthworm antibacterial peptides on pro-duction performance and serum antioxidant indices of Chai-chickens. 36 chickens which were 15 days old and had similar weight were selected, then randomly divided into 4 treatment groups: the control group was treated with normal saline, earthworm test group was treated with different doses of antimicrobial peptides (test group 1: earthworm peptides 2 mL the 2 times dilution, test group 2: earthworm peptides 2 mL diluted 1 times, test group 3: earthworm peptides 2 mL). 36 Chai-chickens randomly divided into four groups with three replicates per group and three Chai-chickens per replicate, the experiment lasted for 3 weeks. The results showed that: compared with the control group, the amount of oral antimicrobial peptides of earthworm significantly improved daily gain and feed weight ratio of the chickens, but there was no significant difference between each experimental group (P > 0.05); the feed gain ratio was decreased (P < 0.05); the serum antioxidant capacity improved. Therefore, taking the right amount of earthworm anti-bacterial peptides can improve the production performance and serum antioxidant capacity of Chai-chickens.