Effect of different vitamin D sources and calcium levels in the diet of layers in the second laying cycle

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: chol...

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Bibliographic Details
Main Authors: GR do Nascimento, AE Murakami, AFQM Guerra, IC Ospinas-Rojas, MFZ Ferreira, JC Fanhani
Format: Article
Language:English
Published: Fundação APINCO de Ciência e Tecnologia Avícolas 2014-06-01
Series:Brazilian Journal of Poultry Science
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000200005&lng=en&tlng=en