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dc.contributor.authorLavezzo, Otávia Elisa Nogueira Mendes-
dc.contributor.authorLavezzo, Wagner-
dc.contributor.authorBurini, Roberto Carlos-
dc.identifier.citationRevista Brasileira de Zootecnia, v. 25, n. 2, p. 282-297, 1996.-
dc.description.abstractSix young (15 mo), castraded-male Corriedale sheep were fed diets where the soybean meal (D 1) was partially replaced by urea at two levels 0.7% (D2) and 1.4% (D3). All the diets were Rhodes-hay grass based, isoproteic (15.4% CP) and isocaloric (2.92 Mcal DE/kg). The animals were kept on each diet for 40 days according to a latin-square design (3x3). After a 21-day diet adaptation the animals were submitted to 7-day N balance (NB) and apparent digestibility coefficients (DC) studies and for a further 5-days for the whole-body protein metabolism study (WBP). The WBP was calculated by injecting (i.v.) hourly 15N-glycine (0.6 mg/kgBW/8h) and determining the urinary 15N-ammonium enrichment. The results showed similar dietetic intake, food conversion, body-weight (BW), weight gain (155-204 g/day), apparent crude protein digestibility coefficient (74-76%) and NB (6-7.3 g/day) for all diets. There were also no differences among treatments in 15N-flux, protein synthesis and breakdown values. According to the diets used in this experiment, and the results obtained, the comparison between the classical (BW gain, DC, NB) and simplified (WPD-NB) tests was possible.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.subject15N-glycine kinetics-
dc.subjectApparent digestibility-
dc.subjectSoybean meal-
dc.titleEfeitos nutricionais da substituição parcial do farelo de soja por uréia, em dieta de ovinos. Comparação da digestibilidade aparente e balanço de nitrogênio com a cinética do metabolismo da 15N-glicinapt
dc.title.alternativeNutritional effects of partial replacement of soybean meal by urea in sheep diets. Apparent digestability and N-balance comparison with 15N-glycine metabolism kineticsen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationDepto. de Methoramento e Nutr. Anim. Faculdade de Med. Vet. e Zootecnia UNESP-
dc.description.affiliationDepto. de Clinica Médica Faculdade da Medicina UNESP-
dc.description.affiliationInstituicoes Financiadoras: CNPq FUNDUNESP FAPESP-
dc.description.affiliationUnespDepto. de Methoramento e Nutr. Anim. Faculdade de Med. Vet. e Zootecnia UNESP-
dc.description.affiliationUnespDepto. de Clinica Médica Faculdade da Medicina UNESP-
dc.description.affiliationUnespInstituicoes Financiadoras: CNPq FUNDUNESP FAPESP-
dc.rights.accessRightsAcesso aberto-
dc.relation.ispartofRevista Brasileira de Zootecnia-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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