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母猪日粮中添加低聚壳聚糖对哺乳仔猪生长、抗氧化能力和免疫功能的影响 预览 被引量:1

Effect of Oligo-chitosan Supplemented in Sow Diet on Growth,Antioxidant Capacity and Immunologic Function of Suckling Piglets
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摘要 本试验旨在探讨母猪日粮中添加低聚壳聚糖对哺乳仔猪生长、血液生化指标、抗氧化能力及免疫功能的影响。选用24头胎次、体重和预产期相近的健康大白猪母猪,随机分为3组,每组8个重复,每个重复1头母猪。对照组饲喂基础日粮,Ⅰ、Ⅱ组饲喂分别添加50和100g/t低聚壳聚糖的基础日粮,试验从母猪妊娠第85天开始至分娩后第21天时结束。结果显示:(1)Ⅱ组哺乳仔猪腹泻率显著低于对照组和Ⅰ组(P<0.05),Ⅰ组与对照组差异不显著(P>0.05);与对照组相比,Ⅰ、Ⅱ组仔猪21日龄体重显著提高(P<0.05)。(2)Ⅰ组仔猪血浆乳酸脱氢酶(LDH)活性和甘油三酯(TG)浓度,Ⅱ组α-淀粉酶(α-AMY)、LDH活性和低密度脂蛋白(LDL)浓度均显著低于对照组(P<0.05)。(3)Ⅱ组哺乳仔猪血清超氧化物歧化酶(SOD)活性,皮质醇、白介素-10(IL-10)、白介素-1β(IL-1β)、肿瘤坏死因子α(TNF-α)和干扰素-γ(IFN-γ)含量均显著高于对照组和Ⅰ组(P<0.05),而丙二醛(MDA)浓度显著低于对照组(P<0.05)。(4)低聚壳聚糖组母猪初乳中免疫球蛋白G(IgG)、IgA和IgM含量均显著高于对照组(P<0.05);Ⅰ组仔猪血清IgG和IgA含量、Ⅱ组仔猪血清IgA含量均显著高于对照组(P<0.05)。综上所述,母猪日粮中添加一定量的低聚壳聚糖能够提高哺乳仔猪的抗氧化能力、增强机体免疫能力、降低腹泻率,从而提高哺乳仔猪生长性能。 This study was conducted to explore the effect of oligo-chitosan supplemented in sow diet on growth,antioxidant capacity and immunologic function of suckling piglets.24 healthy Yorkshire sows with similar parity,body weight and expected date of confinement were assignedinto 3groups with 8replicates per group and 1sow per replicate.Sows in the control group were fed the basal diet and the others in the experimental groupsⅠandⅡ were fed the basal diet supplemented with 50 and 100g/t oligo-chitosan,respectively.The experiment lasted from the 85 th day of pregnancy to the 21 st day after delivery.The results showed as follows:(1)The diarrhea rate of suckling piglets in groupⅡ was significantly lower than those in groupⅠand the control group(P<0.05),while there was no significant difference between experimental group Ⅰ and the control group(P>0.05).The body weight at 21 days of age of suckling piglets in groupsⅠandⅡ were much higher than that in control group(P<0.05).(2)Compared with the control group,the activity of LDH and the concentration of TG in group Ⅰ,activities ofα-AMY and LDH,and concentration of LDL in groupⅡ were significantly decreased(P<0.05).(3)The activity of SOD,levels of cortisol,IL-10,IL-1β,TNF-αand IFN-γin groupⅡ were significantly higher than those in groupⅠand control group(P<0.05),while the concentration of MDA was significantly lower than that in the control group(P<0.05).(4)The concentrations of immunoglobulin IgG,IgA and IgM of sow milk in groupsⅠ and Ⅱ were much higher than those in the control group(P<0.05).Compared with the control group,the serum IgG and IgA levels of suckling piglets in groupⅠand IgA level in group Ⅱ were significantly increased(P<0.05).In conclusion,the addition of oligo-chitosan at a certain dose in sow diet could improves the antioxidant and immunity capacity,reduce the diarrhea rate,and thus improve the growth performance of suckling piglets,indicating oligo-chitosan was an effective feed additive.
作者 刘莹莹 任慧波 张星 邓缘 罗璇 陈晨 胡雄贵 朱吉 彭英林 LIU Yingying;REN Huibo;ZHANG Zing;DENG Yuan;LUO Xuan;CHEN Chen;HU Xionggu;ZHU Ji;PENG Yinglin(Hunan Institute of Animal and Veterinary Sciences,Changsha 410131,China;Hunan Pig Industry Technology System,Changsha 410131,China;Hunan Co-innovation Center of Animal Production Safety,Changsha 410128,China;Hunan Xinguang'an Agriculture and Livestock Limited Co.,Ltd.,Changsha 410129,China)
出处 《中国畜牧兽医》 CAS 北大核心 2019年第1期166-173,共8页 China Animal Husbandry & Veterinary Medicine
基金 国家自然科学基金项目(31601954) 湖南省自然科学基金项目(2017JJ3137) 国家863项目(2013AA102503) 湖南省重点研发计划(2016NK2196).
关键词 低聚壳聚糖 哺乳仔猪 生长性能 血液生化指标 免疫功能 oligo-chitosan suckling piglets growth performance blood biochemical indices immunologic function
作者简介 刘莹莹(1982-),女,湖南邵阳人,博士,助理研究员,研究方向:动物营养调控,E-mail:hunaulyy_2006@126.com;通信作者:彭英林(1965-),男,湖南双峰人,博士,研究员,研究方向:动物遗传育种,E-mail:13907487646@126.com.
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