Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/45576
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dc.creatorRibeiro, Julimar do Sacramento-
dc.creatorGonçalves, Tarcisio de Moraes-
dc.creatorLadeira, Márcio Machado-
dc.creatorTullio, Rymer Ramiz-
dc.creatorCampos, Fabrício Rodrigues-
dc.creatorBergmann, José Aurélio Garcia-
dc.creatorMachado Neto, Otávio Rodrigues-
dc.creatorCarvalho, José Rodolfo Reis de-
dc.date.accessioned2020-11-20T18:47:03Z-
dc.date.available2020-11-20T18:47:03Z-
dc.date.issued2012-04-
dc.identifier.citationRIBEIRO, J. do S. et al. Reactivity, performance, color and tenderness of meat from Zebu cattle finished in feedlot. Revista Brasileira de Zootecnia, Viçosa, MG, v. 41, n. 4, p. 1009-1015, Abr. 2012. DOI: https://doi.org/10.1590/S1516-35982012000400025.pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/45576-
dc.description.abstractThe objective of this study was to study the animal reactivity and correlate it with performance and meat quality of cattle finished in feedlots. A total of 20 animals of the Tabapuã breed and 20 animals of the Nellore breed were confined for 112 days: 28 days of adaptation and 84 days of data collection. Performance was determined by the average daily weight gain (ADG) and average dry matter intake (DMI) estimated through the use of indicators. On the 1st, 42nd and 84th days of the experiment, two methods were used to measure the animal reactivity: animal reactivity in mobile cage and visual reactivity during handling. The characteristics of meat quality were evaluated by the color, shear force and pH24 after slaughter (pH24). Through the study of correlation, the degree and direction of linear association on animal reactivity, performance and meat quality were established. Regression equations were generated for the parameters evaluated according to the values of animal reactivity. Correlations between mobile cage and visual reactivity were 0.77, 0.56 and 0.45 in the 1st, 2nd and 3rd evaluations, respectively. There was no correlation between animal reactivity and DMI. The correlations between ADG, pH24, and color with animal reactivity were -0.31, 0.40, 0.47 and -0.34, and -0.33 for mobile cage, 0.74, 0.71 and -0.51, for visual reactivity, respectively. The parameters of meat quality varied according to the reactivity. Undesirable values of pH24, animal reactivity and color were found when mobile cage reactivity was higher than 780, 590 and 540, respectively. In general, animals that show greater reactivity tend to have lower daily weight gain and lower meat quality. The reactivity can be used in animal breeding programs, in order to improve performance and meat quality of Zebu cattle finished in feedlot.pt_BR
dc.languageenpt_BR
dc.publisherUniversidade Federal de Viçosapt_BR
dc.rightsacesso abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.sourceRevista Brasileira de Zootecniapt_BR
dc.subjectBovinept_BR
dc.subjectMeat qualitypt_BR
dc.subjectTemperamentpt_BR
dc.subjectCarne bovina - Qualidadept_BR
dc.titleReactivity, performance, color and tenderness of meat from Zebu cattle finished in feedlotpt_BR
dc.typeArtigopt_BR
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