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Provedor de dados:  R. Bras. Zootec.
País:  Brazil
Título:  Creatinine excretion and relationship with body weight of Nellore cattle
Autores:  Silva,Luiz Fernando Costa e
Valadares Filho,Sebastião de Campos
Chizzotti,Mário Luiz
Rotta,Polyana Pizzi
Prados,Laura Franco
Valadares,Rilene Ferreira Diniz
Braga,Jercyane Maria da Silva
Data:  2012-03-01
Ano:  2012
Palavras-chave:  Crude protein
Muscle tissue
Total collection
Resumo:  The objective of this study was to estimate the urinary creatinine excretion by the shrunk body weight (SBW). In experiment I, 32 Nellore bulls with initial body weight of 259±24.9 kg and 14±1 months-old were used. The group was divided in four animals to maintenance and twenty eight animals feeding ad libitum and separated in four groups; each group was slaughtered at different times of feedlot (42, 84, 126 and 168 days). The diet was composed of corn silage and concentrate (55:45). Before the slaughters, the total urinary collection was realized during three days. A database of creatinine excretion was collected from other five studies that had been conducted with Nellore cattle. In all the studies, the total urinary collection was realized during at least three days. At the end of each collection, the animals were weighted. Urinary creatinine excretion (UCE) was related with the shrunk body weight and it can be estimated by the equation: UCE (g/day) = 0.0345 × SBW0.9491.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Sociedade Brasileira de Zootecnia
Relação:  10.1590/S1516-35982012000300046
Formato:  text/html
Fonte:  Revista Brasileira de Zootecnia v.41 n.3 2012
Direitos:  info:eu-repo/semantics/openAccess

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