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Registros recuperados: 13 | |
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Pizzolante,CC; Kakimoto,SK; Saldanha,ESPB; Laganá,C; Souza,HBA; Moraes,JE. |
This study aimed at evaluating the effect of dietary calcium levels and the replacement of calcium sources with different particle size compositions on the performance and egg quality of brown layers in their second egg production cycle. A randomized block experimental design was applied with 12 treatments in a 3x4 factorial arrangement: three calcium levels (2.6, 3.2, 3.8 %) and four combinations of calcium sources (1- 100% fine limestone (FL), 2- 50% FL + 50% coarse limestone (CL), 3- 50% FL and 50% oyster shell (OS), 4- 50% FL and 25% CL+ 25 %OS), with six replicates of eight birds each. Calcium sources were analyzed for geometric mean diameter (GMD) and in-vitro solubility. The following performance and egg quality parameters were evaluated: egg weight... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg quality; Levels; Minerals; Particle size; Performance; Sources. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000200004 |
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Registros recuperados: 13 | |
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