Values of Metabolizable Energy and Metabolization of Nutrients for Slow- and Fast-growing Birds at Different Ages

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dc.creatorFR Santos
dc.creatorJH Stringhini
dc.creatorPR Oliveira
dc.creatorEF Duarte
dc.creatorCS Minafra
dc.creatorMB Café
dc.date2015
dc.date.accessioned2026-07-07T03:24:27Z
dc.descriptionTwo trials were performed to determine apparent metabolizable energy (AME) and AME corrected for zero nitrogen balance (AMEn) values and coefficients of apparent metabolizability of nitrogen (CAMN) and of ether extract (CAMEE) of slow- and fast-growing broilers (Isa label and Cobb, respectively) fed four different diets between 10 to 17 days or 28 to 35 days of age. The method of total excreta collection was applied. The tested feedstuffs were corn, whole corn germ (WCG), sorghum, and soybean meal (SBM). A randomized block experimental design was applied, with two treatments (breeds) and four replicates of ten animals each in the first trial, and four replicates of six animals each in the second trial. No differences in CAMN values were observed between the breeds; however, Isa Label birds presented higher CAMEE for all tested feedstuffs. The AME and AMEn values obtained in Isa Label chickens fed the corn diet were 5.75 and 3.44% higher relative tothe Cobb birds, respectively. Breed did not influence AME and AMEn values of the other tested feedstuffs. Independently of breed, age influenced the AME and AMEn values of WCG, sorghum and SBM, suggesting that birds become utilize feed more efficiently as they age.
dc.formatapplication/pdf
dc.identifier1516-635X
dc.identifierhttps://www.redalyc.org/articulo.oa?id=179743242016
dc.identifier.urihttp://hdl.handle.net/123456789/433035
dc.languageen
dc.publisherFundação APINCO de Ciência e Tecnologia Avícolas
dc.relationhttp://www.redalyc.org/revista.oa?id=1797
dc.rightsRevista Brasileira de Ciência Avícola
dc.sourceRevista Brasileira de Ciência Avícola (Brasil) Num.4 Vol.17
dc.subjectAgrociencias
dc.titleValues of Metabolizable Energy and Metabolization of Nutrients for Slow- and Fast-growing Birds at Different Ages
dc.typeartículo científico

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