Effects of disbudding on behavior and heart rate during jugular venipuncture in dairy calves

Disbudding is a common painful procedure that alters physiological and behavioral responses in calves. Other routine management procedures are commonly performed on calves while these disbudding wounds are healing, such as vaccine injections, jugular venipuncture to check for passive immunity, and ear tagging. While disbudding is known to cause long-lasting pain, the effects of an additional invasive procedure on calf behavior and heart rate when wounds are present is understudied. To evaluate the effects of multiple, consecutive routine management procedures, we tested whether calves were more reactive to handling and a jugular venipuncture that occurred 3 d after caustic paste disbudding compared to those that were not disbudded. We assigned 26 heifers to 2 treatments at 3 d of age: sham handling (n = 13) or caustic-paste disbudding (n = 13). Three d after paste was applied, heart rate and 3 behaviors (hindleg lifts, foreleg lifts, struggling) were observed while the calves were restr..., , , # Data from: Effects of disbudding on behavior and heart rate during jugular venipuncture in dairy calves

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Data were collected from 26 heifers. Calves were assigned to 1 of 2 treatments: caustic paste disbudding (n = 13; 10 Holsteins and 3 Jerseys) or control (n = 13; 10 Holsteins and 3 Jerseys). On d 3 of life, pain relief was provided, and Dr. Naylor’s paste was rubbed into unshaved horn buds at 0.25 or 0.30 mL/per horn bud when calves had a birthweight of < 34 kg or ≥ 34 kg, respectively for disbudded calves. Control calves received a sham handling procedure on d 3. On d 6, all calves had a jugular venipuncture performed, a standard procedure used to evaluate passive transfer of immunity. During the blood draw, calves were fitted with a heart rate monitor and video recorded. Videos were observed for 3 behaviors: hindleg lifts, foreleg lifts, and struggling. To account for variation in handling time, among calf behavior was analy...

去角（disbudding）是犊牛常见的致痛操作，会改变犊牛的生理与行为应答反应。
在去角创口愈合期间，犊牛通常还需接受其他常规饲养管理操作，例如疫苗接种、颈静脉采血（jugular venipuncture）以检测被动免疫（passive immunity）状态，以及耳标佩戴。
尽管已知去角会引发长期疼痛，但当创口存在时，额外侵入性操作对犊牛行为与心率的影响尚未得到充分研究。
为评估多项连续常规饲养管理操作的影响，本研究对比了未去角犊牛与经腐蚀性药膏去角（caustic-paste disbudding）术后3天的犊牛对抓握及颈静脉采血的反应性差异。
本研究在犊牛3日龄时将26头小母牛分为2组：假处理组（n = 13）与腐蚀性药膏去角组（n = 13）。
当犊牛被固定时[原文截断]，，，# 数据集来源：奶牛犊牛颈静脉采血期间去角对其行为与心率的影响

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本数据集采集自26头小母牛。
犊牛被分为2组：腐蚀性药膏去角组（n = 13；10头为荷斯坦牛（Holsteins）、3头为娟姗牛（Jerseys））与对照组（n = 13；10头为荷斯坦牛、3头为娟姗牛）。
在犊牛出生后第3天，去角组犊牛接受镇痛处理，并根据出生体重分别在未修剪的角芽处涂抹0.25 mL或0.30 mL的内勒博士药膏（Dr. Naylor’s paste）：出生体重＜34 kg者每角芽涂抹0.25 mL，≥34 kg者每角芽涂抹0.30 mL。
对照组犊牛在出生后第3天接受假处理操作。
出生后第6天，对所有犊牛实施颈静脉采血，该操作是评估被动免疫转移的标准流程。
采血过程中，为犊牛佩戴心率监测设备并进行视频录制。
通过视频观察3项行为指标：后肢抬起（hindleg lifts）、前肢抬起（foreleg lifts）与挣扎行为（struggling）。
为抵消抓握时长的变异影响，本研究对犊牛行为进行了分[原文截断]