反刍与草食动物营养 Ruminant and herbivore nutrition

复合菌培养物对肉羊生长性能、免疫与抗氧化功能的影响

  • 崔莹 ,
  • 李薛强 ,
  • 于春微 ,
  • 李冬芳 ,
  • 高民 ,
  • 胡红莲 ,
  • 刘大程
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  • 1. 内蒙古农业大学兽医学院, 呼和浩特 010018;
    2. 内蒙古农牧业科学院动物营养与饲料研究所, 呼和浩特 010031
崔莹(1995-),女,内蒙古赤峰人,硕士研究生,兽医微生物学与免疫学专业。E-mail:cuiying951026@163.com

收稿日期: 2019-04-19

  网络出版日期: 2019-11-19

基金资助

现代农业产业技术体系建设专项(CARS-36);内蒙古自治区应用技术研究与开发计划项目(201602051)

Effects of Compound Bacteria Culture on Growth Performance, Immunity and Antioxidant Function of Meat Sheep

  • CUI Ying ,
  • LI Xueqiang ,
  • YU Chunwei ,
  • LI Dongfang ,
  • GAO Min ,
  • HU Honglian ,
  • LIU Dacheng
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  • 1. College of Veterinary, Inner Mongolia Agricultural University, Hohhot 010018, China;
    2. Research Institute of Animal Nutrition and Feed, Inner Mongolia Academy of Animal Sciences, Hohhot 010031, China

Received date: 2019-04-19

  Online published: 2019-11-19

摘要

本试验旨在研究复合菌培养物对肉羊生长性能、免疫与抗氧化功能的影响。选择3月龄断奶健康羔羊共40只,体重(17.38±0.24)kg,随机分为试验组和对照组,每组4个重复,每个重复5只羊(公羔羊2只,母羔羊3只)。对照组饲喂全混合日粮(TMR),试验组在TMR的基础上添加10%复合菌培养物。试验期共计97 d,其中预试期7 d,正试期90 d。分别在试验第1、30、60和90天测定肉羊体重、采食量,计算平均日增重、平均日采食量、料重比(平均日采食量/平均日增重);在试验第1、60、90天采集血样,测定血清免疫球蛋白G(IgG)、免疫球蛋白M(IgM)、白细胞介素-2(IL-2)、白细胞介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)含量以及超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)、过氧化氢酶(CAT)活性、总抗氧化能力(T-AOC)及丙二醛(MDA)含量;于试验最后1 d空腹称重后,次日进行屠宰,测定宰前活重(LWBS)、胴体重(CW)、料肉比(饲料消耗量/胴体重增加量)。结果表明:1)与对照组相比,添加复合菌培养物使肉羊第90天平均体重和胴体重分别提高了5.97%和9.07%(P<0.05);料肉比和第1~90天料重比分别降低了8.98%和5.36%(P<0.05),屠宰率提高了1.24%(P<0.05),每只羊的生产利润提高43.35元,提升31.94%。2)试验组肉羊血清IgG、IgM、IL-6含量及GSH-Px活性显著高于对照组(P<0.05)。综上所述,添加复合菌培养物可显著提高肉羊生长性能及免疫功能。

本文引用格式

崔莹 , 李薛强 , 于春微 , 李冬芳 , 高民 , 胡红莲 , 刘大程 . 复合菌培养物对肉羊生长性能、免疫与抗氧化功能的影响[J]. 动物营养学报, 2019 , 31(11) : 5065 -5073 . DOI: 10.3969/j.issn.1006-267x.2019.11.021

Abstract

This experiment was aimed to investigate to the effects of compound bacterial culture on the growth performance, immune and antioxidant function of meat sheep. Forty healthy lambs at 3 months of age with similar body weight of (17.38±0.24) kg were selected and divided into test group and control group, 4 replicates in each group and 5 lambs in each replicate (2 male lambs and 3 female lambs). The control group was fed a basic total mixed ration (TMR), and the experimental group was fed the TMR adding 10% compound bacteria culture. The testing period lasted for 97 days including a 7-day preliminary period and a 90-day test period. The body weight and feed intake were measured on days 1, 30, 60 and 90, and average daily gain, average daily feed intake and feed/gain were calculated; blood samples were collected on days 1, 60 and 90, and the contents of immunoglobulin G (IgG), immunoglobulin M (IgM), interleukin-2 (IL-2), interleukin-6 (IL-6), tumor necrosis factor-α(TNF-α) in serum and the activities of superoxide dismutase (SOD), glutathion peroxidase (GSH-Px), catalase (CAT), total antioxidant capacity (T-AOC) and malonaldehyde (MDA) content in serum were measured; on the last day of experiment period, lambs were weighted and slaughtered at the next day, and the live weight before slaughter (LWBS), carcass weight (CW) and feed/meat were measured. The results showed as follows:1) compared with the control group, adding compound bacteria culture increased average body weight on day 90 and carcass weight by 5.97% and 9.07% (P<0.05), respectively; the feed/meat and feed/gain on days 1 to 90 reduced by 8.98% and 5.36% (P<0.05), respectively; the slaughter rate increased by 1.24% (P<0.05). The production profit per sheep was 43.35 yuan, which increased by 31.94%. 2) The contents of serum IgG, IgM, IL-6 and GSH-Px actively in the test group were significantly higher than those in the control group (P<0.05). To summary, compound bacterial cultures can significantly improve the growth performance and immunity function of meat sheep.

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