Effects of pre-slaughter fasting on broiler welfare, meat quality, and intestinal integrity
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Fundação APINCO de Ciência e Tecnologia Avícolas
2013
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| _version_ | 1876468433957158912 |
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| author | REP Pereira |
| author_facet | REP Pereira |
| contents | Effects of pre-slaughter fasting on broiler welfare, meat quality, and intestinal integrity REP Pereira MRFB Martins AA Mendes PAZ ICL Almeida CM Komiyama EL Milbradt BC da S Fernandes Agrociencias stress Broiler industry intestinal morphology intestinal morphometrics The Brazilian Ministry of Agriculture (MAPA) regulations establish 12 hours as the maximum pre-slaughter fasting period for broilers; however, many processing plants have considered this time is not sufficient, and consequently return the birds to the farms, with consequent economic losses and welfare problems. Therefore, it is necessary to investigate the possible effects of longer pre-slaughter fasting times. The objective of the present study was to evaluate the effect of pre-slaughter fasting times longer than those established by MAPA on broiler welfare, breast meat quality, and intestinal integrity. Forty 42-d-old broilers were submitted to different pre-slaughter fasting times: group I: 6 hours, group II 9h, group III 12h, and group IV 15h. Bird welfare was assessed before slaughter. After sacrifice, intestinal samples were collected to assess their morphology and morphometrics, and the Pectoralis major muscle was analyzed for pH and color. There was no influence (p>0.05) of treatments on breast muscle pH or color.There were no significant changes in intestinal morphometrics (p<0.05). Bird behavior was affected (p<0.05), suggesting that welfare was impaired as fasting time increased, but no differences in the analyzed parameters were detected between broilers fasted for 12 or 15 hours. It was concluded that the behavioral differences between birds fasted for 12 and 15 hours are not sufficient to assert that those fasted for 15 hours were in worse welfare conditions. 2013 artículo científico 1516-635X https://www.redalyc.org/articulo.oa?id=179727930007 en http://www.redalyc.org/revista.oa?id=1797 Revista Brasileira de Ciência Avícola application/pdf Fundação APINCO de Ciência e Tecnologia Avícolas Revista Brasileira de Ciência Avícola (Brasil) Num.2 Vol.15 |
| format | Artículo científico |
| id | redalyc_179727930007 |
| institution | Redalyc |
| language | en |
| publishDate | 2013 |
| publisher | Fundação APINCO de Ciência e Tecnologia Avícolas |
| spellingShingle | Effects of pre-slaughter fasting on broiler welfare, meat quality, and intestinal integrity REP Pereira Agrociencias stress Broiler industry intestinal morphology intestinal morphometrics Effects of pre-slaughter fasting on broiler welfare, meat quality, and intestinal integrity REP Pereira MRFB Martins AA Mendes PAZ ICL Almeida CM Komiyama EL Milbradt BC da S Fernandes Agrociencias stress Broiler industry intestinal morphology intestinal morphometrics The Brazilian Ministry of Agriculture (MAPA) regulations establish 12 hours as the maximum pre-slaughter fasting period for broilers; however, many processing plants have considered this time is not sufficient, and consequently return the birds to the farms, with consequent economic losses and welfare problems. Therefore, it is necessary to investigate the possible effects of longer pre-slaughter fasting times. The objective of the present study was to evaluate the effect of pre-slaughter fasting times longer than those established by MAPA on broiler welfare, breast meat quality, and intestinal integrity. Forty 42-d-old broilers were submitted to different pre-slaughter fasting times: group I: 6 hours, group II 9h, group III 12h, and group IV 15h. Bird welfare was assessed before slaughter. After sacrifice, intestinal samples were collected to assess their morphology and morphometrics, and the Pectoralis major muscle was analyzed for pH and color. There was no influence (p>0.05) of treatments on breast muscle pH or color.There were no significant changes in intestinal morphometrics (p<0.05). Bird behavior was affected (p<0.05), suggesting that welfare was impaired as fasting time increased, but no differences in the analyzed parameters were detected between broilers fasted for 12 or 15 hours. It was concluded that the behavioral differences between birds fasted for 12 and 15 hours are not sufficient to assert that those fasted for 15 hours were in worse welfare conditions. 2013 artículo científico 1516-635X https://www.redalyc.org/articulo.oa?id=179727930007 en http://www.redalyc.org/revista.oa?id=1797 Revista Brasileira de Ciência Avícola application/pdf Fundação APINCO de Ciência e Tecnologia Avícolas Revista Brasileira de Ciência Avícola (Brasil) Num.2 Vol.15 |
| title | Effects of pre-slaughter fasting on broiler welfare, meat quality, and intestinal integrity |
| topic | Agrociencias stress Broiler industry intestinal morphology intestinal morphometrics |
| url | https://www.redalyc.org/articulo.oa?id=179727930007 |