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首页> 外文期刊>Tropical Animal Health and Production >Minor corral changes and adoption of good handling practices can improve the behavior and reduce cortisol release in Nellore cows
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Minor corral changes and adoption of good handling practices can improve the behavior and reduce cortisol release in Nellore cows

机译：轻微的畜栏变化和采用良好的处理实践可以改善行为，并减少小奶牛的皮质醇释放

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Inadequate corral facilities and improper handling are major causes of stress in beef cattle. The purpose of this study was to evaluate the effects of minor changes in the corral and adoption of good handling practices on the behavior, cortisol release, and time spent taking blood samples in Nellore cows. Minor corral changes included obstructing the cow's vision when the handler walked deep into the animal's flight zone and the elimination of bright objects, color contrasts, puddles, shadows, and darkness in the corral. Handling was improved by eliminating dogs, electric goads (prods), and yelling, as well as adopting a calm behavior. A total of 141 Nellore cows from two typical extensive livestock farms were studied. The cows were evaluated individually before and after the corral changes. Blood samples were collected in the restraint device for cortisol measurement. The minor corral changes and the adoption of good handling practices result in better results for all variables studied. The results showed differences in the interactions between treatment and ranch for chute score (P = 0.0091) and exit score (P & 0.0001). The cortisol release was lower (P & 0.001) and better for the improved methods, resulting in calmer cows compared to cortisol released before the minor changes (41.03 +/- 2.9 vs 60.40 +/- 3.8 ng/mL). Minor changes made in the corrals and the adoption of good handling practices were effective in improving cow behavior in the chute and in reducing exit velocity, cortisol released, and the time spent taking blood samples.
机译：畜栏设施不足，操作不当是牛肉中压力的主要原因。本研究的目的是评估核心，皮质醇释放以及在无奈奶牛中血液样本所花费的良好处理良好的腐败和采用良好处理实践的影响。当处理程序深入动物的飞行区和消除曲线中的消除曲线时，遭遇轻微的畜栏变化包括阻碍牛的愿景。通过消除狗，电动山脉（刺激）和大喊大叫，以及采用平静行为，改善了处理。研究了来自两个典型的广泛牲畜农场的141牛母牛。奶牛在畜栏变化之前和之后单独评估。收集在用于皮质醇测量的约束装置中的血液样品。次要的畜栏变化和采用良好的处理实践导致所有研究的所有变量的效果更好。结果表明，治疗和牧场之间的相互作用差异（p = 0.0091）和出口得分（P＆amp; 0.0001）。皮质醇释放较低（P＆amp; 0.001），更好的改进方法，导致与在微小变化之前的皮质醇相比，导致平静的奶牛（41.03 +/- 2.9 Vs 60.40 +/- 3.8 ng / ml）。在核制和采用良好处理实践中进行的微小变化是有效改善滑槽中的牛行为以及减少出口速度，皮质醇释放，以及花血样的时间。

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