反刍与草食动物营养与饲料 RUMINANT AND HERBIVORE NUTRITION AND FEED

高温季节福利化管理对驴驹生长性能、血清免疫和激素指标的影响

  • 吴玮琪 ,
  • 赵宏杰 ,
  • 金晓 ,
  • 徐元庆 ,
  • 闫素梅 ,
  • 史彬林
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  • 内蒙古农业大学动物科学学院, 呼和浩特 010018
吴玮琪(1996-),男,浙江衢州人,硕士研究生,研究方向为动物环境与营养。E-mail:wuweiqi1234@foxamil.com

收稿日期: 2021-04-27

  网络出版日期: 2021-12-16

基金资助

内蒙古自治区科技重大专项(zdzx2018001)

Effects of Welfare Management in High-Temperature Season on Growth Performance, Serum Immune and Hormonal Indexes of Donkey Foals

  • WU Weiqi ,
  • ZHAO Hongjie ,
  • JIN Xiao ,
  • XU Yuanqing ,
  • YAN Sumei ,
  • SHI Binlin
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  • College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China

Received date: 2021-04-27

  Online published: 2021-12-16

摘要

本试验旨在研究喷淋和风扇对高温季节驴驹生长性能、血清免疫和激素指标的影响,为驴驹热应激防治中的应用提供理论依据。选取24头日龄[(51.95±2.24)d]、体重[(56.80±5.34)kg]相近、无亲缘关系的驴驹,随机分为4个组,分别为对照组、喷淋组、喷淋+风扇组、风扇组,每组6个重复(公母各占1/2),每个重复1头驴。试验期28 d。每日07:00和14:00补喂相同的饲粮,其余时间自由吮食母乳,自由饮水。试验期间喷淋+风扇组、风扇组每天11:00-17:00开启风扇,在此期间喷淋组、喷淋+风扇组每隔1 h进行1次喷淋,每次喷淋2 min。结果表明:与对照组相比,试验各组驴驹平均日增重均显著提高(P<0.05);与对照组相比,试验各组泌乳母驴挤奶量均显著升高(P<0.05);与对照组相比,试验各组驴驹血清中白细胞介素-1β(IL-1β)的含量均显著降低(P<0.05),风扇组、喷淋+风扇组驴驹血清中白细胞介素-4(IL-4)的含量显著升高(P<0.05),风扇组、喷淋+风扇组驴驹血清中免疫球蛋白A(IgA)、免疫球蛋白G(IgG)和免疫球蛋白M(IgM)的含量显著升高(P<0.05),喷淋组驴驹血清中IgA含量显著升高(P<0.05);与对照组相比,试验各组驴驹血清中甲状腺素(T4)含量均显著升高(P<0.05),风扇组、喷淋+风扇组驴驹血清中胰岛素(INS)和促肾上腺皮质激素(ACTH)含量显著升高(P<0.05),试验各组驴驹血清中热休克蛋白70(HSP70)的含量均显著降低(P<0.05)。综上所述,试验各处理均能缓解热应激对驴驹免疫功能及激素的影响,并且显著提高了驴驹平均日增重,其中风扇、喷淋+风扇效果相对较好。

本文引用格式

吴玮琪 , 赵宏杰 , 金晓 , 徐元庆 , 闫素梅 , 史彬林 . 高温季节福利化管理对驴驹生长性能、血清免疫和激素指标的影响[J]. 动物营养学报, 2021 , 33(12) : 6953 -6963 . DOI: 10.3969/j.issn.1006-267x.2021.12.036

Abstract

The purpose of this experiment was to investigate the effects of spray and fan on donkey foals' growth performance, serum immunity and hormone indexes in high-temperature season, and provide a theoretical basis for the application of heat stress prevention and treatment in donkey foals. Select 24 donkey foals with similar birth time[(51.95±2.24) d] and similar weight[(56.80±5.34) kg] and without kinship, divided them into 4 groups, which were control group, spray group, spray+fan group and fan group, each group with 6 replicates (half male and half female), and 1 donkey for each replicate. The experiment lasted for 28 days. Donkey foals were supplemented the same feed at 07:00 and 14:00 every day, sucking breastmilk and drinking water free. During the experiment, the spray+fan group and the fan group turned on the fan every day from 11:00 to 17:00. During this period, the spray group and the spray+fan group were sprayed once every 1 h, spraying for 2 min each time. The results showed as follows:compared with the control group, donkey foals' average daily gain in each test group was significantly increased (P<0.05). Compared with the control group, milking quantity of lactation donkey in all test groups was significantly increased (P<0.05). Compared with the control group, the donkey foals' serum interleukin-1β (IL-1β) content in each test group was significantly decreased (P<0.05), and serum interleukin-4 (IL-4) content in fan group and spray+fan group was significantly increased (P<0.05), serum immune globulin A (IgA), immune globulin G (IgG) and immune globulin M (IgM) contents in fan group were significantly increased (P<0.05), and serum IgA content in spray group was significantly increased (P<0.05); compared with the control group, the donkey foals' serum thyroxine (T4) content in the test groups was significantly increased (P<0.05), serum insulin (INS) and adrenocorticotropin (ACTH) contents in spray+fan group were significantly increased (P<0.05), serum heat shock protein 70 (HSP70) content in the test groups was significantly reduced (P<0.05). In summary, all test treatments can alleviate the effects of heat stress on the immune function and hormones of donkey foals. It is also significantly increased the average daily gain of the donkey foals. Among them, the fan and spray+fan have better effects.

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