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dc.contributor.authorAlves, Michaela F.R. [UNESP]
dc.contributor.authorAbe, Flavia Renata
dc.contributor.authorBoleli, Isabel C. [UNESP]
dc.date.accessioned2014-05-27T11:26:59Z
dc.date.available2014-05-27T11:26:59Z
dc.date.issued2012-09-10
dc.identifierhttp://dx.doi.org/10.3923/ijps.2012.361.367
dc.identifier.citationInternational Journal of Poultry Science, v. 11, n. 5, p. 361-367, 2012.
dc.identifier.issn1682-8356
dc.identifier.urihttp://hdl.handle.net/11449/73567
dc.description.abstractThis experiment evaluated the growth of breast and leg muscle fibers of domestic fowl raised in two enclosure sizes (SE: Small Enclosure, 1.125 m2/10 birds; LE: Large Enclosure, 5.25 m2/10 birds). In breast muscles, the number of fibers per area decreased over time and higher values were observed in broilers housed in SE compared to LE. The fiber size increased with age and was greater in LE than SE at 56 days of age, suggesting greater hypertrophic growth of fibers in breast muscle for broilers maintained in LE. In leg muscles, the muscle cross-sectional area was greater for broilers raised in LE than SE at 56 days of age and decreased from 42 to 56 days of age in broilers raised in SE, suggesting leg muscle atrophy in these birds. The Fast Glycolytic (FG), Fast Oxidative-Glycolytic (FOG) and Slow Oxidative (SO) fibers grew until 42 days of age in both enclosure sizes. The area of FOG fibers was greater in broilers raised in LE than those in SE at 28 and 56 days of age; in LE-raised broilers, the SO area was greater at 28, 42 and 56 days of age, suggesting that the muscles of broilers housed in LE are more oxidative. The BW gain was greater for broilers raised in LE than SE, whereas BW, feed intake and feed conversion were not influenced by enclosure size. Thus, the enclosure space affected hypertrophic growth and metabolic characteristics of breast and leg muscle fibers. © Asian Network for Scientific Information, 2012.en
dc.format.extent361-367
dc.language.isoeng
dc.relation.ispartofInternational Journal of Poultry Science
dc.sourceScopus
dc.subjectBroiler
dc.subjectEnclosure space
dc.subjectFiber size
dc.subjectPectoralis major
dc.subjectSartorius
dc.subjectAves
dc.titleInfluence of enclosure size on growth of breast and leg muscle fibers in domestic fowlen
dc.typeArtigo
dcterms.licensehttp://scialert.net/licence_to_publish.pdf
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.description.affiliationDepartment of Animal Morphology and Physiology Faculty of Agricultural and Veterinary Sciences São Paulo State University - UNESP
dc.description.affiliationUnespDepartment of Animal Morphology and Physiology Faculty of Agricultural and Veterinary Sciences São Paulo State University - UNESP
dc.identifier.doi10.3923/ijps.2012.361.367
dc.rights.accessRightsAcesso aberto
dc.identifier.scopus2-s2.0-84865725707
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
dc.relation.ispartofsjr0,238
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