Effect of dietary fiber, genetic strain and age on the digestive metabolism of broiler chickens
dc.contributor.author | Kras, Rodrigo Vieira | pt_BR |
dc.contributor.author | Kessler, Alexandre de Mello | pt_BR |
dc.contributor.author | Ribeiro, Andrea Machado Leal | pt_BR |
dc.contributor.author | Henn, João Dionísio | pt_BR |
dc.contributor.author | Bockor, Luciane | pt_BR |
dc.contributor.author | Sbrissia, André Fischer | pt_BR |
dc.date.accessioned | 2014-11-22T02:17:15Z | pt_BR |
dc.date.issued | 2013 | pt_BR |
dc.identifier.issn | 1516-635X | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/107364 | pt_BR |
dc.description.abstract | In this study, 360 male broilers, out of which 240 of a fast-growing strain (Cobb500), and 120 of a slow-growing strain (Label Rouge), were used to evaluate the effect of dietary fiber on digesta transit time and digestive metabolism during the period of 1 to 42 days of age. A completely randomized experimental design with a 3x2 factorial arrangement was applied, consisting of three groups of birds (slow-growing – SG; fast-growing fed ad libitum – FGAL; and fast-growing pair-fed with SG broilers – FGPF) and two iso-protein diets (a 3100 kcal ME/kg low-fiber diet –LFD- and a 2800 kcal ME/ kg high-fiber diet –HFD- with 14% wheat bran and 4% oat hulls). HFD-fed birds presented lower ME retention (p < 0.001) and lower dry matter metabolizability (DMM) (p < 0.001), which is possibly related to the shorter digesta transit time observed in these birds (p < 0.001). DMM was reduced with age, whereas metabolizable energy remained almost constant (p < 0.001) independently of strain. This may be related to the increase in feed intake as birds age. The slowgrowing strain did not present better utilization of the high-fiber diet as compared to the fast-growing strain in none of the analyzed ages, even though showing a significant better use of fiber and dietary energy from 31 days of age. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Revista brasileira de ciência avícola= Brazilian journal of poultry science. Campinas, SP. Vol. 15, n.2 (abr./jun. 2013), p. 83-90 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Frango de corte | pt_BR |
dc.subject | Nutricao animal | pt_BR |
dc.subject | Fibra alimentar | pt_BR |
dc.subject | Metabolismo animal | pt_BR |
dc.title | Effect of dietary fiber, genetic strain and age on the digestive metabolism of broiler chickens | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000940764 | pt_BR |
dc.type.origin | Nacional | pt_BR |
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