Xinjiang Agricultural Sciences ›› 2022, Vol. 59 ›› Issue (11): 2793-2799.DOI: 10.6048/j.issn.1001-4330.2022.11.025

• Equine Exercise Physiology and Healthy Farming • Previous Articles     Next Articles

Effects of Bamboo Leaf Extract on Heart Rate Variability of Yili Horses during Milking

LIU Ting1,2(), YAO Xinkui1,2,3(), MENG Jun1,2,3, ZENG Yaqi1,2,3, WANG Chuankun1,2, REN Wanlu1,2, Busharemu Abudukadier1, GAO Wanting1   

  1. 1. College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
    2. Institute of Horse Industry, Xinjiang Agricultural University, Urumqi 830052, China
    3. Xinjiang Key Laboratory of Equine Breeding and Exercise Physiology, Urumqi 830052, China
  • Received:2022-01-11 Online:2022-11-20 Published:2022-12-28
  • Correspondence author: YAO Xinkui
  • Supported by:
    The Innovation Environment (Talent, Base) Construction Project of Xinjiang Uygur Autonomous Region(PT2220);Major science and technology projects of Xinjiang Uygur Autonomous Region(2022A02007-1);Xinjiang Yili Horse Industry Cluster Project(2022xjmlt-z-02)

补喂竹叶提取物对伊犁马挤奶期间心率变异性的影响

刘婷1,2(), 姚新奎1,2,3(), 孟军1,2,3, 曾亚琦1,2,3, 王川坤1,2, 任万路1,2, 布沙热木·阿不都卡地尔1, 高婉婷1   

  1. 1.新疆农业大学动物科学学院,乌鲁木齐 830052
    2.新疆农业大学马产业研究院,乌鲁木齐 830052
    3.新疆马繁育与运动生理重点实验室,乌鲁木齐 830052
  • 通讯作者: 姚新奎
  • 作者简介:刘婷(1996-),女,新疆乌鲁木齐人,硕士研究生,研究方向为动物生产学,(E-mail)344034697@qq.com
  • 基金资助:
    自治区创新环境(人才、基地)建设专项(PT2220);新疆维吾尔自治区重大科技专项(2022A02007-1);新疆伊犁马产业集群项目(2022xjmlt-z-02)

Abstract:

【Objective】 To study the changes in heart rate variability (HRV) of Yili horses during milking after supplementary feeding with bamboo leaf extract, and explore the effects of different doses and different feeding periods on milking stress of Yili horses. 【Methods】 In this experiment, 24 Yili mares with similar body shape and structure and similar parity were selected and they were fed with bamboo leaf extract for 60 days. 0-20 days was taken as stage 1, 21-40 days was taken as stage 2, and 41-60 days was taken as stage 3. The indexes of HRV were collected during milking. The selected Yili horses were randomly divided into control group (0 g/d), group Ⅰ (10 g/d), group Ⅱ (20 g/d) and group Ⅲ (30 g/d). HRV differences in different periods and doses were analyzed. 【Results】 The results during different feeding test periods showed that SDT HR in stage 3 was significantly higher than that in stage 1 (P<0.05); RMSSD in stage 2 and 3 were significantly higher than that in stage 1 (P<0.05); SD1 in stage 3 was significantly higher than that in stage 1 (P<0.05); SD2 in stage 3 was significantly higher than that in stage 2 (P<0.01), and stage 2 was significantly higher than that in stage 1 (P<0.01). VLF in stage 3 was significantly higher than that in stage 1 and 2 (P<0.01); LF and HF in stage 3 were significantly higher than those in stage 1 and 2 (P<0.01); TP in stage 3 was significantly higher than that in stage 1 and 2 (P<0.01). The analysis results in different groups showed that the Mean HR in control group was significantly higher than that in test group I and the test group III (P<0.05); SD2 in group Ⅱ was significantly higher than that in group Ⅳ (P<0.01) and significantly higher than that in control group (P<0.05); SD2 and VLF in control group were significantly lower than those in test group I (P<0.05); LF in control group and test group Ⅰ was significantly higher than that in test group Ⅲ (P<0.05); HF and TP in group Ⅰ were significantly higher than those in group Ⅲ (P<0.05); LF/HF in control group was significantly lower than that in test group I (P>0.05). 【Conclusion】 Considering the HRV changes of horses, supplementary feeding with bamboo leaf extract to Yili horses can effectively reduce the sympathetic nerve activity and stress response of horses during milking under the test conditions.

Key words: Yili horse; heart rate variability; bamboo leaf extract; during milking; stress response

摘要:

【目的】研究补喂竹叶提取物后伊犁马挤奶期间心率变异性的变化,分析不同剂量和不同饲喂试验期对伊犁马挤奶应激的影响。【方法】选取24匹伊犁母马,其体型结构相似,胎次相近,进行为期60 d的补饲竹叶提取物,0~20 d为第1阶段,21~40 d为第2阶段,41~60 d为第3阶段。采集马匹挤奶期间心率变异性指标。将24匹伊犁马随机分为对照组0 g/d;试验Ⅰ组10 g/d;试验Ⅱ组20 g/d;试验Ⅲ组30 g/d四组,分析不同时期和剂量的HRV差异性。【结果】第3阶段SDT HR显著高于第1阶段(P<0.05);第2和第3阶段RMSSD均显著高于第1阶段(P<0.05);第3阶段SD1显著高于第1阶段(P<0.05);第3阶段SD2极显著高于第2阶段(P<0.01),且第2阶段又极显著高于第1阶段(P<0.01)。第3阶段VLF极显著高于第1和第2阶段(P<0.01);第3阶段的LF和HF两个指标均极显著高于第1阶段和第2阶段(P<0.01);第3阶段TP极显著高于第1阶段和第2阶段(P<0.01)。对照组Mean HR显著高于试验Ⅰ组和试验Ⅲ组(P<0.05);第Ⅱ组SD2极显著高于第Ⅳ组(P<0.01),且显著高于对照组(P<0.05);对照组SD2和VLF显著低于试验Ⅰ组(P<0.05);对照组和试验Ⅰ组LF显著高于试验Ⅲ组(P<0.05);试验Ⅰ组中HF、TP显著高于试验Ⅲ组(P<0.05);对照组LF/HF显著低于试验Ⅰ组(P>0.05)。【结论】伊犁马补喂竹叶提取物能有效降低马匹交感神经活动,减少其挤奶时的应激反应。

关键词: 伊犁马, 心率变异性, 竹叶提取物, 挤奶期间, 应激反应

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