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 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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Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
2017
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oai:ojs.csi.unmsm:article-125792017-08-07T04:01:54Z Effectiveness of two methods for stunning pigs: electrical stunning head-heart and CO2 stunning Efectividad de Dos Métodos de Aturdimiento de Cerdos: Electronarcosis de Tres Puntos y Narcosis con CO2 Acevedo-Giraldo, Juan David Romero, Marlyn Sánchez, Jorge A. pig animal welfare effectiveness electrical stunning CO2 stunning cerdos bienestar animal efectividad eléctrocusión narcosis con CO2 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. Los objetivos de este estudio fueron evaluar y comparar la efectividad de los métodos de aturdimiento eléctrico de tres puntos (MA1) y de narcosis con dióxido de carbono (CO2) (MA2) , así como evaluar la infraestructura y manejo de los cerdos en dos plantas de sacrificio comercial de Colombia. Se realizó un estudio de corte transversal que evaluó 520 cerdos (MA1=185; MA2=335). Se estudiaron indicadores conductuales en el cajón de aturdimiento e indicadores de consciencia antes y después del desangrado. Los movimientos oculares (39%) y el parpadeo espontáneo (36.7%) fueron signos frecuentes para MA1, mientras que en MA2 se evidenció la respiración rítmica (24.1%). La efectividad del aturdimiento fue baja en las dos plantas de sacrificio antes (48.7%, 50.5%) y después del desangrado (79.5%, 37.3%). Se recomienda instaurar indicadores para evaluar de manera rutinaria la efectividad del aturdimiento, así como un programa de mantenimiento preventivo de los equipos y de capacitación continua del personal. Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria 2017-01-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article application/pdf https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/12579 10.15381/rivep.v27i4.12579 Revista de Investigaciones Veterinarias del Perú; Vol. 27 No. 4 (2016); 668-679 Revista de Investigaciones Veterinarias del Perú; Vol. 27 Núm. 4 (2016); 668-679 1682-3419 1609-9117 spa https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/12579/11543 Derechos de autor 2017 Juan David Acevedo-Giraldo, Marlyn Romero, Jorge A. Sánchez https://creativecommons.org/licenses/by-nc-sa/4.0 |
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Biblioteca de la Facultad de Medicina Veterinaria |
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Digital |
| author |
Acevedo-Giraldo, Juan David Romero, Marlyn Sánchez, Jorge A. |
| spellingShingle |
Acevedo-Giraldo, Juan David Romero, Marlyn Sánchez, Jorge A. Effectiveness of two methods for stunning pigs: electrical stunning head-heart and CO2 stunning |
| author_facet |
Acevedo-Giraldo, Juan David Romero, Marlyn Sánchez, Jorge A. |
| author_sort |
Acevedo-Giraldo, Juan David |
| title |
Effectiveness of two methods for stunning pigs: electrical stunning head-heart and CO2 stunning |
| title_short |
Effectiveness of two methods for stunning pigs: electrical stunning head-heart and CO2 stunning |
| title_full |
Effectiveness of two methods for stunning pigs: electrical stunning head-heart and CO2 stunning |
| title_fullStr |
Effectiveness of two methods for stunning pigs: electrical stunning head-heart and CO2 stunning |
| title_full_unstemmed |
Effectiveness of two methods for stunning pigs: electrical stunning head-heart and CO2 stunning |
| title_sort |
effectiveness of two methods for stunning pigs: electrical stunning head-heart and co2 stunning |
| description |
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. |
| publisher |
Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria |
| publishDate |
2017 |
| url |
https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/12579 |
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