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| Nascimento,GR do; Murakami,AE; Guerra,AFQM; Ospinas-Rojas,IC; Ferreira,MFZ; Fanhani,JC. |
| This study evaluated the effects of different sources of vitamin D and calcium levels on performance, egg quality and bone strength of hens in the second production cycle. A total of 384 Hy-Line W36 birds with 80 weeks of age were used, alloted into 3 x 4 factorial design (sources of vitamin D: cholecalciferol; 25(OH)D3 and 1.25(OH)2D3 x calcium levels: 2.85, 3.65; 4.45 and 5.25%) with four replicates and eight birds each. The performance was evaluated for three cycles of 28 days each, egg quality was evaluated in the last four days of each cycle and bone strength on the last day of the experimental period. There was no interaction (p > 0.05) between the different sources of vitamin D and calcium levels in all parameters evaluated. There was a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cholecalciferol; 25 hydroxycholecalciferol; 1.25 dihydroxycholecalciferol. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000200005 |
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