Effectiveness of two methods for stunning pigs: electrical stunning head-heart and CO2 stunning
The aims of this study were to evaluate and compare the effectiveness of the electrical stunning head-heart (MA1) and CO2 stunning (MA2), and to assess the infrastructure and management of pigs in two commercial slaughterhouses in Colombia. A crosssectional study that evaluated 520 pigs (MA1=185 and...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2017 |
| País: | Perú |
| Institución: | Universidad Nacional Mayor de San Marcos |
| Repositorio: | Revistas - Universidad Nacional Mayor de San Marcos |
| Idioma: | español |
| OAI Identifier: | oai:revistasinvestigacion.unmsm.edu.pe:article/12579 |
| Acceso en línea: | https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/12579 |
| Access Level: | acceso abierto |
| Palabra clave: | pig animal welfare effectiveness electrical stunning CO2 stunning cerdos bienestar animal efectividad eléctrocusión narcosis con CO2 |
| Sumario: | The aims of this study were to evaluate and compare the effectiveness of the electrical stunning head-heart (MA1) and CO2 stunning (MA2), and to assess the infrastructure and management of pigs in two commercial slaughterhouses in Colombia. A crosssectional study that evaluated 520 pigs (MA1=185 and MA2=335) was performed. Behavioral indicators in the stunning box and consciousness indicators before and after bleeding were evaluated. Eye movements (39%) and spontaneous eye blinking (36.7%) were common in MA1, while rhythmic breathing (24.1%) was evident in MA2. The effectiveness of stunning was low in the two slaughterhouses before (48.7%, 50.5%) and after bleeding (79.5%, 37.3%). It is recommended to establish indicators to routinely assess the effectiveness of stunning, and a programme of preventive maintenance of equipment and continuous training of staff. |
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