A comprehensive study of respiration rates in dairy cattle

Respiration rate (RR) is often used to assess health and heat stress in cattle, influencing decisions that affect their welfare (e.g., medical treatment, cooling). Despite its importance, systematic information on how RR responds to various intrinsic and extrinsic factors is limited. This study recorded RR and behavior of 406 female Holstein and Jersey cattle (newborn to sixth lactation cows) in California over a year, aiming to: 1) describe RR across different life stages (calves, heifers, lactating, and dry cows), 2) evaluate how different weather or thermal load indexes predict RR using linear regression and mixed models, and 3) assess the effects of individual characteristics (life stage, breed, milk production, lactation state) and behavior (posture, location) on RR in a Mediterranean climate. A total of 11,210 RR and behavior records were obtained over 39 d between October 2016 and August 2017. Each record was paired with individual characteristics and 25 different weather paramet..., , , # Data from: A comprehensive study of respiration rates in dairy cattle

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This study recorded RR and behavior of 406 female Holstein and Jersey cattle (newborn to sixth lactation cows) in California over a year, aiming to: 1) describe RR across different life stages (calves, heifers, lactating and dry) throughout the year, 2) evaluate how different weather or thermal load indexes predict RR using linear regression and mixed models, and 3) assess the effects of individual characteristics (breed, age, milk production, lactation state) and behavior (posture, location) on RR in dairy cattle in Mediterranean climate. A total of 11,210 RR and behavior records were obtained over 39 days between October 2016 and August 2017. Each record was paired with 25 different weather parameters and individual characteristics. We observed a wide range of RR in dairy cattle, with AT within 5-min of observation being the best predictor o...,

呼吸频率（Respiration Rate, RR）常被用于评估牛只的健康状况与热应激水平，相关结果会直接影响关乎其福利的管理决策（如医疗处置、降温措施等）。尽管其重要性不言而喻，但目前关于呼吸频率如何响应各类内在与外在因素的系统性研究信息仍较为匮乏。本研究于美国加利福尼亚州开展了为期一年的监测，记录了406头雌性荷斯坦（Holstein）与娟姗（Jersey）奶牛（涵盖从新生犊牛至第六泌乳期母牛）的呼吸频率与行为数据，研究目标包括：1）描述不同生命阶段（犊牛、青年母牛、泌乳牛与干奶牛）的呼吸频率特征；2）采用线性回归与混合模型，评估不同气象参数或热负荷指数对呼吸频率的预测效果；3）在地中海气候条件下，探究个体特征（生命阶段、品种、产奶量、泌乳状态）与行为（姿态、所处位置）对奶牛呼吸频率的影响。本研究在2016年10月至2017年8月的39天监测周期内，共收集到11210条呼吸频率与行为记录。每条记录均匹配了个体特征与25项不同的气象参数……，# 数据来源：《奶牛呼吸频率综合研究》（A comprehensive study of respiration rates in dairy cattle）
[可在Dryad平台获取本数据集](https://doi.org/10.5061/dryad.vdncjsz19)
本研究于美国加利福尼亚州开展了为期一年的监测，记录了406头雌性荷斯坦与娟姗奶牛（涵盖从新生犊牛至第六泌乳期母牛）的呼吸频率与行为数据，研究目标包括：1）全年描述不同生命阶段（犊牛、青年母牛、泌乳牛与干奶牛）的呼吸频率特征；2）采用线性回归与混合模型，评估不同气象参数或热负荷指数对呼吸频率的预测效果；3）在地中海气候条件下，探究个体特征（品种、年龄、产奶量、泌乳状态）与行为（姿态、所处位置）对奶牛呼吸频率的影响。本研究在2016年10月至2017年8月的39天监测周期内，共收集到11210条呼吸频率与行为记录。每条记录均匹配了25项不同的气象参数与个体特征。本研究观测到奶牛的呼吸频率存在较大波动范围，观测前5分钟内的气温（AT）是最佳预测因子……