Effect of supplementation with MgCO3 and L-tryptophan on the welfare and on the carcass and meat quality of two halothane pig genotypes (NN and nn)

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dc.contributor.author Panella-Riera, Núria
dc.contributor.author Dalmau Bueno, Antoni
dc.contributor.author Fàbrega Romans, Emma
dc.contributor.author Font i Furnols, Maria
dc.contributor.author Gispert i Negrell, Maria Assumpta
dc.contributor.author Tibau Font, Joan
dc.contributor.author Soler Soler, Joaquim
dc.contributor.author Velarde, Antonio
dc.contributor.author Oliver Pratsevall, M. Àngels
dc.contributor.author Gil Farré, Marta
dc.date.issued 2008
dc.identifier.citation Panella-Riera, N., Dalmau, A., Fàbrega, E., Font i Furnols, M., Gispert, M., Tibau, J., et al. (2008). Effect of supplementation with MgCO3 and L-tryptophan on the welfare and on the carcass and meat quality of two halothane pig genotypes (NN and nn). Livestock Science, 2008, 115 (2), 107-117. Recuperat 26 octubre de 2011, a http://www.journals.elsevierhealth.com/periodicals/livsci/home
dc.identifier.issn 1871-1413
dc.identifier.uri http://hdl.handle.net/10256/3663
dc.description.abstract Sixty-one animals with different Halothane genes (homozygous halothane positive, n=34; and homozygous halothane negative, n=27) were fed with three diets (controlgroup, with no supplement; magnesium (Mg) group with 1.28g MgCO3/kg and tryptophan (Trp) group with 5g L-Trp/kg) during the last 5 days before slaughter. Animals were submitted to minimal stress ante mortem conditions. Pig behaviour was recorded at the experimental farm, raceway to the CO2 stunning system and during the stunning period. Corneal reflexes were recorded after stunning as well. There were no differences in feed intake among diets (p>0.05) during the 5 days of treatment. The halothane positive (nn) group had lower intake than the halothane negative (NN) group (p<0.01). The behaviour of the pigs in the raceway did not differ (p>0.05) among treatments or halothane genotype. A significant (p<0.001) interaction diet*halothane was found in the time to appear the first retreat attempt during the exposure to the CO2 system. In the nn group, the time of performing the first retreat attempt was later in the Mg (p<0.05) than the Control group. Moreover, in the Mg group, the nn had a later (p<0.05) first retreat attempt than the NN. Thus, Mg supplementation could have a positive effect on welfare of nn pigs. The nn had a lower proportion of animals that showed corneal reflexes after stunning than NN, indicating a higher effectiveness of the stunning method in nn pigs. Neither Mg nor Trp affected carcass quality and meat quality parameters, although significant differences were found between genotypes
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.relation.isformatof Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.livsci.2007.06.014
dc.relation.ispartof © Livestock Science, 2008, vol. 115, núm. 2, p. 107-117
dc.relation.ispartofseries Articles publicats (D-EQATA)
dc.relation.uri http://hdl.handle.net/10803/37381
dc.rights Tots els drets reservats
dc.subject Carn de porc -- Anàlisi
dc.subject Porcs -- Alimentació
dc.subject Pork -- Anàlisi
dc.subject Swine -- Feeding and feeds
dc.title Effect of supplementation with MgCO3 and L-tryptophan on the welfare and on the carcass and meat quality of two halothane pig genotypes (NN and nn)
dc.type info:eu-repo/semantics/article
dc.type.version info:eu-repo/semantics/acceptedVersion
dc.identifier.doi http://dx.doi.org/10.1016/j.livsci.2007.06.014


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