Miranda-de la Lama Genaro C, Leyva Iván G, Barreras-Serrano Alberto, Pérez-Linares Cristina, Sánchez-López Eduardo, María Gustavo A, Figueroa-Saavedra Fernando
Department of Animal Production and Food Science, Faculty of Veterinary Science, University of Zaragoza, Miguel Servet 177, 50013, Zaragoza, Spain.
Trop Anim Health Prod. 2012 Mar;44(3):497-504. doi: 10.1007/s11250-011-9925-y. Epub 2011 Jul 26.
Slaughter plants have been undergoing radical transformations in recent years due to the need to increase efficiency and incorporate new technologies for the improvement of the infrastructure, animal welfare, and product quality. The aim of this study was to assess the cattle welfare status during the unloading, lairage, stunning, bleeding and quantify bruising incidence at a commercial slaughter plant in the northwest of Mexico. We monitored 8,118 cattle during the unloading, lairage, stunning, bleeding, and carcass bruise incidence. Our results showed that in the unloading stage, 2% of the cattle vocalized, 5% were prodded with an electric goad, and 4% either slipped or fell. In the lairage stage, 12% of the animals vocalized, 80% prodded with an electric goad, and 8% of the animals slipped or fell. In the stunning stage, 10% of the animals vocalized, 67% prodded with an electric goad, and 15% of the animals slipped or fell. Ninety-five percent of the animals were stunned with a single shot, and 51% of the animals were effectively desensitized. Ninety-two percent of the carcasses had some type of bruise. Although the slaughter plant had adequate infrastructure and stringent operational standards, in all of the stages except unloading handling had an impact on the welfare of the animals being slaughtered.
近年来，由于需要提高效率并采用新技术来改善基础设施、动物福利和产品质量，屠宰场一直在经历彻底的变革。本研究的目的是评估墨西哥西北部一家商业屠宰场在卸牛、圈养、致昏、放血过程中的牛福利状况，并对瘀伤发生率进行量化。我们在卸牛、圈养、致昏、放血以及胴体瘀伤发生率期间监测了8118头牛。我们的结果表明，在卸牛阶段，2%的牛发出叫声，5%的牛被电棒驱赶，4%的牛滑倒或摔倒。在圈养阶段，12%的动物发出叫声，80%的动物被电棒驱赶，8%的动物滑倒或摔倒。在致昏阶段，10%的动物发出叫声，67%的动物被电棒驱赶，15%的动物滑倒或摔倒。95%的动物一次电击致昏，51%的动物有效脱敏。92%的胴体有某种类型的瘀伤。尽管屠宰场有足够的基础设施和严格的操作标准，但除卸牛外，所有阶段的处理都对被屠宰动物的福利产生了影响。
