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首页> 外文期刊>Biological Rhythm Research >Wind chill index and neonatal lamb mortality at an organized farm in semi-arid Rajasthan
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Wind chill index and neonatal lamb mortality at an organized farm in semi-arid Rajasthan

机译：Semi-Arid Rajasthan的有组织农场的风寒指数和新生儿羊羔死亡

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摘要

Using climatic data from 1991 to 2016 recorded at Avikanagar, wind chill index (WCI) was calculated for each day during winter (December-February) coinciding with major lambing season. The WCI (kcal/m(2)/h) was categorized as no chill (300.0), low (300.1-350.0), moderate (350.1-400.0), high (400.1-450.0) and extreme (450.1) and the neonatal lambs death (857) in a total of 2257 days (December-February of each year) were considered to observe the effect of WCI. The overall annual neonatal lamb mortality was 5.85%. Over the years daily WCI revealed a significant increase in number of extreme chill days (WCI 400.1 kcal/m(2)/h) since December 2003. The overall proportion of neonatal death ranged from 2.10% (WCI 300 kcal/m(2)/h) to 69.34% ((WCI 400.1 kcal/m(2)/h). The climatic data showed that out of total days, majority of days (64.99%) covered were of high to extreme chill in nature (WCI 400.1 kcal/m(2)/h). The daily rate of neonatal mortality found to possess a positive and linear relation with WCI and ranged from 0.25 lamb death/day (WCI 300 kcal/m(2)/h) to 0.46 lamb death/day (WCI 450.1 kcal/m(2)/h). The entities responsible for exposure-inanition syndrome (EIS, debility, exposure, inanition) had positive relation with WCI. The contribution of EIS in overall neonatal mortality ranged from 29.08 (WCI 300.1-350.0 kcal/m(2)/h) to 42.00% (WCI 450.1 kcal/m(2)/h). The analysis suggested requirement of proper shelter management for neonatal lambs during extreme climate.
机译：使用1991年至2016年的气候数据记录在Avikanagar，在冬季（12月至2月）的每一天计算风冷指数（WCI）恰逢丹林季节。 WCI（KCAL / M（2）/ h）分类为NO CHILL（＆ 300.0），低（35.1-350.0），中等（350.1-400.0），高（400.1-450.0）和极端（＆ 450.1）和新生儿羔羊死亡（857）共计2257天（每年12月至2月）被认为观察WCI的效果。整体新生儿羔羊死亡率为5.85％。多年来，自2003年12月以来，WCI每日WCI透露出极端寒冷天数（WCI＆ 400.1 kcal / m（2）/ h）的显着增加。新生儿死亡的总比例为2.10％（WCI＆ 300千卡/ m（2）/ h）至69.34％（（WCI＆ 400.1 kcal / m（2）/ h）。气候数据显示出总日，大多数天（64.99％）覆盖的覆盖率高至极端寒意本质上（WCI＆ 400.1 kcal / m（2）/ h）。发现新生儿死亡率的每日率与WCI具有正和线性关系，范围从0.25羊死亡/日（WCI＆ 300 kcal / m（ 2）/ h）至0.46羔羊死亡/日（WCI＆ 450.1 kcal / m（2）/ h）。负责暴露的曝光综合征（EIS，衰弱，曝光，未经内行）的实体与WCI有积极的关系。该EIS对整体新生儿死亡率的贡献范围从29.08（WCI 300.1-350.0 KCAL / M（2）/ h）到42.00％（WCI＆ 450.1 kcal / m（2）/ h）。分析表明需要适当的住房管理对于极端成熟期间的新生儿羊羔te。

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