韩国本土牛 (韩国本土牛) 的环境温度与体重之间的相关性
Hyun Sang Kim1, Jungeun Kim1, Pilnam Seong2
1Animal Nutrition and Physiology Division, National Institute of Animal Science, Rural Development Administration, Wanju, Korea.
Animal bioscience
|March 6, 2025
概括
环境热量会对汉小牛的生长和牛肉质量产生负面影响. 较高的温度和湿度降低了出生体重和每日体重增加,影响了韩国牛的尸体特征和肉质.
科学领域:
- 动物科学动物科学
- 环境科学 环境科学
- 农业科学 农业科学
背景情况:
- 环境温度显著影响畜牧生产率和牛肉质量.
- 在小牛阶段的热应激会对动物的表现产生长期影响.
- 了解这些影响对于优化汉武牛的牛肉生产至关重要.
研究的目的:
- 研究天气条件对韩国本土汉武牛的生长,尸体特征和肉质的影响.
- 分析Hanwoo小牛的环境因素和关键绩效指标之间的相互关系.
主要方法:
- 分析了来自8,727只汉武雄牛犊的数据和来自60个韩国城市 (2016-2019) 的相应气象数据.
- 在数据集中包括小牛的出生体重,平均每日增长,尸体体重和肉质等级.
- 气候变量 (温度,RH,THI) 和小牛表现指标之间的统计相关性分析.
主要成果:
- 夏天出生的小牛的出生体重比冬天出生的小牛要低.
- 平均每日收益在冬季最高,在春秋最低.
- 出生体重和平均每日增加与温度,RH和THI负相关.
- 尸体重量与出生体重和每日体重增加有正相关性,是唯一与肉类质量等级有正相关性的特征.
结论:
- 温度,RH和THI对Hanwoo小牛的出生体重产生不利影响,随后减少了每天的增加,尸体重量和肉质.
- 气候条件对汉武牛的整体生长表现和生产率起着至关重要的作用.
- 缓解热应激对于提高这种品种牛肉生产效率和质量至关重要.
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