Carcass characteristics of feedlot-finished Nellore heifers slaughtered at different weights

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dc.creatorPedro Leonardo de Paula Rezende
dc.creatorJoão Restle
dc.creatorUbirajara Oliveira Bilego
dc.creatorJuliano José de Resende Fernandes
dc.creatorRegis Luis Missio
dc.creatorTiago Pereira Guimarães
dc.date2019
dc.date.accessioned2026-07-07T03:58:09Z
dc.descriptionCarcass and meat characteristics of 48 Nellore heifers at 24 to 30 months of age, with an initial weight of 263.4 ± 13.9 kg, were evaluated. The experiment was set up as a completely randomized design with four treatments, which consisted of four slaughter-weight classes, namely <340, 340-370, 370-400, or >400 kg. Back fat thickness was not influenced (p > 0.05) by slaughter weight in any of the forms it was expressed (mm or %), averaging 5.3 mm. Loin eye area in cm2 increased (p < 0.05) with the increase in slaughter weight. Animals slaughtered at a live weight (LW) of more than 400 kg showed better (p < 0.05) carcass conformation than the other experimental groups (9.8 points). Heifers slaughtered at over 400 kg LW had a more compact (p < 0.05) carcass (1.65 cm kg-1 cold carcass). The marbling degree of meat was lower (p < 0.05) in the animals slaughtered at less than 340 kg LW. In conclusion, cull heifers must not be slaughtered at a LW of less than 340 kg and slaughter weights greater than 400 kg have positive implications on important carcass characteristics, notably conformation and marbling.
dc.formatapplication/pdf
dc.identifier1806-2636
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303160553051
dc.identifierhttps://www.redalyc.org/journal/3031/303160553051/
dc.identifierhttps://www.redalyc.org/journal/3031/303160553051/html/
dc.identifierhttps://www.redalyc.org/journal/3031/303160553051/303160553051.epub
dc.identifierhttps://www.redalyc.org/journal/3031/303160553051/movil
dc.identifier10.4025/actascianimsci.v41i1.44826
dc.identifier.urihttp://hdl.handle.net/123456789/448962
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3031
dc.rightsActa Scientiarum. Animal Sciences
dc.sourceActa Scientiarum. Animal Sciences (Brasil) Vol.41
dc.subjectAgrociencias
dc.titleCarcass characteristics of feedlot-finished Nellore heifers slaughtered at different weights
dc.typeartículo científico

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Acta Scientiarum. Animal Sciences - Universidade Estadual de Maringá