抗菌肽及益生菌复合添加剂对青脚麻鸡生长性能、屠宰性能及血清生化指标的影响

doi:10.16431/j.cnki.1671-7236.2018.03.017

摘要/Abstract

摘要：

试验旨在研究日粮中添加抗菌肽及益生菌复合添加剂对青脚麻鸡生长性能和屠宰性能及血清生化指标的影响。选择7日龄初始体重相近的青脚麻鸡460羽，随机分为5组，每组4个重复，每个重复23羽，分别饲喂5种不同的日粮：Ⅰ组饲喂基础日粮+150 mg/kg金霉素（对照组），Ⅱ、Ⅲ、Ⅳ、Ⅴ组分别在基础日粮中添加200、400、600和800 mg/kg添加剂。试验期56 d。结果显示：①前期Ⅲ、Ⅳ和Ⅴ组平均日采食量均有提高，其中Ⅳ、Ⅴ组与Ⅰ组相比均达到显著水平（P < 0.05）；Ⅱ、Ⅲ、Ⅳ和Ⅴ组平均日增重均有提高，其中Ⅳ组与Ⅰ组相比达到显著水平（P < 0.05）；Ⅱ、Ⅲ和Ⅳ组平均料重比均有降低，其中Ⅱ、Ⅳ组与Ⅰ组相比均达到显著水平（P < 0.05）。后期和全期平均日采食量、平均日增重和平均料重比各组差异均不显著（P > 0.05）。②各组与对照组相比，全净膛率、胸肌率和腿肌率均有一定程度的提高，但各组差异均不显著（P > 0.05）。③与对照组相比，Ⅲ、Ⅳ和Ⅴ组血清总蛋白含量分别提高了1.18%、12.11%和29.28%；Ⅲ、Ⅳ和Ⅴ组血清白蛋白含量分别显著提高了23.87%、22.28%和23.05%（P < 0.05）；Ⅲ、Ⅳ和Ⅴ组碱性磷酸酶活性分别提高了12.07%、13.17%和29.67%；Ⅱ、Ⅲ、Ⅳ和Ⅴ组谷草转氨酶活性分别提高了0.95%、16.22%、92.95%和137.94%，其中Ⅳ和Ⅴ组均达到显著水平（P < 0.05）。结果表明，在青脚麻鸡日粮中添加抗菌肽和益生菌复合添加剂，可提高青脚麻鸡血清中总蛋白、白蛋白含量及碱性磷酸酶、谷草转氨酶活性，促进青脚麻鸡营养物质代谢，从而提高青脚麻鸡的生长性能和屠宰性能。

关键词: 抗菌肽; 益生菌; 青脚麻鸡; 生长性能; 屠宰性能; 血清生化指标

Abstract:

The research was aimed to study the effects of composite additives of antimicrobial peptides and probiotics on growth performance,slaughter performance and serum biochemical indexes in Partridge Shank chickens.The total of 460 7-day-old Partridge Shank chickens with similar body weight were randomly divided into 5 groups with 4 replicates each group,23 birds per replicate.The chickens in control group were fed with basal diet with 150 mg/kg aureomycin (group Ⅰ),the chickens in treatment groups were fed with composite additive of antimicrobial peptides and probiotics with level of 200 mg/kg (group Ⅱ),400 mg/kg (group Ⅲ),600 mg/kg (group Ⅳ) and 800 mg/kg (group Ⅴ),respectively.The experiment lasted for 56 days.The results showed that:①Compared with control group in the early period,the ADFI in treatment groups except group Ⅱ increased and significant difference was observed in groups Ⅳ and Ⅴ(P < 0.05).The ADG in all treatment groups increased and significant difference was observed in group Ⅳ(P < 0.05).The F/G in group Ⅴ increased lightly and decreased in other treatment groups with significant difference in groups Ⅱ and Ⅳ (P < 0.05).There were no significant difference in the ADFI,ADG and F/G among groups in the later period and the whole period (P > 0.05).②Compared with control group,percentage of eviscerated yield,breast muscle and leg muscle had a certain increase (P > 0.05).③Serum total protein in groups Ⅲ,Ⅳ and Ⅴ were 1.18%,12.11% and 29.28% higher than that of control group,respectively.Serum albumin in groups Ⅲ,Ⅳand Ⅴ were 23.87%,22.28% and 23.05% higher than that of control group,respectively (P < 0.05).The ALP activity in groups Ⅲ,Ⅳ and Ⅴ were 12.07%,13.17% and 29.67% higher than that of control group, respectively.The AST activity in groups Ⅱ,Ⅲ,Ⅳ and Ⅴ were 0.95%,16.22%,92.95% and 137.94% higher than that of control group,respectively,and significant differences were found in groups Ⅳ and Ⅴ (P < 0.05).Supplementation of composite additive of antimicrobial peptides and probiotics to substitute antibiotics in Partridge Shank chickens diet could increase the content of serum total protein and albumin,activity of ALP and AST,promote the nutrient metabolism and improve the growth and slaughter performance in Partridge Shank chickens.

Key words: antimicrobial peptides; probiotics; Partridge Shank chickens; growth performance; slaughter performance; serum biochemical indexes

中图分类号:

S816.3

宋琼莉, 陈小连, 周泉勇, 刘林秀, 邹志恒, 韦启鹏. 抗菌肽及益生菌复合添加剂对青脚麻鸡生长性能、屠宰性能及血清生化指标的影响[J]. 《中国畜牧兽医》, 2018, 45(3): 690-697.

SONG Qiongli, CHEN Xiaolian, ZHOU Quanyong, LIU Linxiu, ZOU Zhiheng, WEI Qipeng. Effects of Composite Additives of Antimicrobial Peptides and Probiotics on Growth Performance, Slaughter Performance and Serum Biochemical Indexes in Partridge Shank Chickens[J]. , 2018, 45(3): 690-697.

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