Meat quality of young Nellore bulls with low and high residual feed intake

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorZorzi, K.
dc.creatorBonilha, Sarah Figueiredo Martins
dc.creatorQueiroz, A. C.
dc.creatorBranco, R. H.
dc.creatorSobrinho, T. L.
dc.creatorDuarte, M. S.
dc.date2014-05-27T11:28:34Z
dc.date2016-10-25T18:44:59Z
dc.date2014-05-27T11:28:34Z
dc.date2016-10-25T18:44:59Z
dc.date2013-03-01
dc.date.accessioned2017-04-06T02:15:12Z
dc.date.available2017-04-06T02:15:12Z
dc.identifierMeat Science, v. 93, n. 3, p. 593-599, 2013.
dc.identifier0309-1740
dc.identifierhttp://hdl.handle.net/11449/74680
dc.identifierhttp://acervodigital.unesp.br/handle/11449/74680
dc.identifier10.1016/j.meatsci.2012.11.030
dc.identifierWOS:000314735100033
dc.identifier2-s2.0-84875102513
dc.identifierhttp://dx.doi.org/10.1016/j.meatsci.2012.11.030
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/895441
dc.descriptionFifty-nine Nellore bulls from low and high residual feed intake (RFI) levels were studied with the objective of evaluating meat quality traits. Animals were slaughtered when ultrasound-measured backfat thickness reached 4. mm, and samples of Longissimus were collected. A mixed model including RFI as fixed effect and herd and diet as random effects was used, and least square means were compared by t-test. More efficient animals consumed 0.730. kg dry matter/day less than less efficient animals, with similar performance. No significant differences in carcass weight, prime meat cuts proportion, chemical composition, pH, sarcomere length, or color were observed between RFI groups. Shear force, myofibrillar fragmentation index and soluble collagen content were influenced by RFI, with a higher shear force and soluble collagen content and a lower fragmentation index in low RFI animals. Feedlot-finished low RFI young Nellore bulls more efficiently convert feed into meat, presenting carcasses within quality standards. © 2012 Elsevier Ltd.
dc.languageeng
dc.relationMeat Science
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBeef
dc.subjectBeef cattle
dc.subjectCarcass
dc.subjectFeedlot
dc.subjectTenderness
dc.subjectChemical compositions
dc.subjectFragmentation index
dc.subjectQuality standard
dc.subjectSignificant differences
dc.subjectAnimals
dc.subjectCollagen
dc.subjectMeats
dc.subjectcollagen
dc.subjectanimal
dc.subjectanimal food
dc.subjectbody weight
dc.subjectcaloric intake
dc.subjectcattle
dc.subjectcolor
dc.subjectdiet
dc.subjectmale
dc.subjectmeat
dc.subjectmechanical stress
dc.subjectmetabolism
dc.subjectmuscle fibril
dc.subjectregression analysis
dc.subjectsarcomere
dc.subjectskeletal muscle
dc.subjectstandard
dc.subjectAnimal Feed
dc.subjectAnimal Nutritional Physiological Phenomena
dc.subjectBody Weight
dc.subjectCattle
dc.subjectColor
dc.subjectDiet
dc.subjectEnergy Intake
dc.subjectLeast-Squares Analysis
dc.subjectMale
dc.subjectMeat
dc.subjectMuscle, Skeletal
dc.subjectMyofibrils
dc.subjectSarcomeres
dc.subjectStress, Mechanical
dc.titleMeat quality of young Nellore bulls with low and high residual feed intake
dc.typeOtro


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