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Effects of 1,25-dihydroxycholecalciferol and reduced vitamin D3 level on broiler performance and bone quality R. Bras. Zootec.
Castro,Fernanda Lima de Souza; Baião,Nelson Carneiro; Ecco,Roselene; Louzada,Mário Jefferson Quirino; Melo,Érica de Faria; Saldanha,Mariana Masseo; Triginelli,Marcela Viana; Lara,Leonardo José Camargos.
ABSTRACT This study was conducted to evaluate the effect of two levels of vitamin D3 with or without 1,25- dihydroxycholecalciferol (1,25(OH)2D3) on live performance and bone quality of broiler chickens. For that, we used a completely randomized design in a 2 × 2 factorial arrangement, with eight replicates of 30 Cobb®500 male broiler chicks each (n = 960). The two levels of vitamin D3 and the addition or not of 0.5 μg 1,25(OH)2D3/kg were considered as main factors. The vitamin D3 levels were: 2500/2000 IU/kg and 1250/1000 IU/kg for the starter (1 to 21 days) and grower (22 to 40 days) phases, respectively, with the first representing the levels used in industry (100%) and the second, a reduction in 50% of those levels. The 1,25(OH)2D3 source was Solanum...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Growth performance; Solanum glaucophyllum.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100506
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