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首页> 外文期刊>International Journal of Biometeorology: Journal of the International Society of Biometeorology >Thermal comfort indices of female Murrah buffaloes reared in the Eastern Amazon
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Thermal comfort indices of female Murrah buffaloes reared in the Eastern Amazon

机译：在东亚马逊地区饲养的雌性Murrah水牛的热舒适指数

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The study aimed to develop new and more specific thermal comfort indices for buffaloes reared in the Amazon region. Twenty female Murrah buffaloes were studied for a year. The animals were fed in pasture with drinking water and mineral supplementation ad libitum. The following parameters were measured twice a week in the morning (7 AM) and afternoon (1 PM): air temperature (AT), relative air humidity (RH), dew point temperature (DPT), wet bulb temperature (WBT), black globe temperature (BGT), rectal temperature (RT), respiratory rate (RR), and body surface temperature (BST). The temperature and humidity index (THI), globe temperature and humidity index (GTHI), Benezra's comfort index (BTCI), and Iberia's heat tolerance index (IHTI) were calculated so they could be compared to the new indices. Multivariate regression analyses were carried out using the canonical correlation model, and all indices were correlated with the physiological and climatic variables. Three pairs of indices (general, effective, and practical) were determined comprising the buffalo comfort climatic condition index (BCCCI) and the buffalo environmental comfort index (BECI). The indices were validated and a great agreement was found among the BCCCIs (general, effective, and practical), with 98.3 % between general and effective a.nd 92.6 % between general and practical. A significant correlation (P 0.01) was found between the new indices and the physiological and climatic variables, which indicated that these may be used in pairs to diagnose thermal stress in buffaloes reared in the Amazon.
机译：该研究旨在为亚马逊地区饲养的水牛开发新的和更具体的热舒适指数。研究了二十只雌性Murrah水牛，为期一年。在牧场上随意喂养动物和补充矿物质的动物。每周早上（7 AM）和下午（下午1点）两次测量以下参数：空气温度（AT），相对空气湿度（RH），露点温度（DPT），湿球温度（WBT），黑色地球温度（BGT），直肠温度（RT），呼吸频率（RR）和体表温度（BST）。计算了温度和湿度指数（THI），地球温度和湿度指数（GTHI），贝内兹拉舒适指数（BTCI）和伊比利亚热耐受指数（IHTI），以便将它们与新指数进行比较。使用典型相关模型进行多元回归分析，所有指标均与生理和气候变量相关。确定了三对指标（一般，有效和实用），包括水牛舒适气候条件指数（BCCCI）和水牛环境舒适指数（BECI）。各项指标均得到了验证，并且在BCCCI之间（通用，有效和实用）达成了很大的共识，一般和有效之间分别为98.3％和92.6％。在新指标与生理和气候变量之间发现了显着的相关性（P <0.01），这表明它们可以成对使用以诊断在亚马逊地区饲养的水牛的热应激。

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