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Animal welfare and different pre slaughter procedures in Uruguay

机译：乌拉圭的动物福利和不同的屠宰程序

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Sixty steers were finished on two different diets being slaughtered the same day in two groups (n=30) staying 15 (G1) and 3 hours (G2) in lairage pens. The aim of the study was to evaluate the effect of diet, temperament, transport and lairage time on animal welfare. Flight time was monthly registered. Stress was evaluated in blood by different indicators, after transport, after lairage and immediately pre slaughter. Behaviour was observed during lairage and carcass pH was registered at 24 hours pm. Data was analised by the SAS package. Calmer animals were less stressed at all pre slaughter stages. Transport did not imply psychological stress, but animals were physically affected. According to negative behaviour, the first hour in lairage was stressful, but animals became calmer afterwards. Noise at the abattoir was higher during the morning. Probably that, and the insufficient resting period in G2, remained animals excitable, contributing to glycogen depletion and a higher carcass pH. Animals from Gl had a higher metabolic stress response but steers had greater opportunities to rest/recovery showing a better carcass pH. Those results suggest that more than 3 hours pre-slaughter time should be necessary, depending on lairage conditions.
机译：在两组（n = 30）的同一天（n = 30）保持15（g1）和3小时（g2），在15小时（g2），六十滴的饮食已经完成。该研究的目的是评估饮食，气质，运输和腰资时间对动物福利的影响。航班时间是每月注册。通过不同的指标，在​​运输后，在脂肪之后进行血液评估压力，并立即进行屠宰。在病原体期间观察到行为，并在晚上24小时注册胴体pH。数据由SAS包进行分析。在所有前屠宰场阶段，平静的动物的压力较小。运输并不意味着心理压力，但动物受到物理影响。根据消极的行为，腰足病的第一个小时很紧张，但之后动物变得更加平静。 amattoir的噪音清晨较高。可能是，G2中的休息时间不足，仍然是动物的兴奋，有助于糖原耗尽和更高的胴体pH。来自GL的动物具有更高的代谢应力反应，但是Steers有更多的机会休息/恢复显示更好的胴体pH。那些结果表明，根据病理条件，应该需要超过3小时的屠宰时间。

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