Influência da restrição alimentar sobre alguns constituintes plasmáticos e qualidade da casca dos ovos de poedeiras comerciais

Otto Mack Junqueira; Marcelo de Oliveira Andreotti; Eliana Aparecida Rodrigues; Douglas Emygdio de Faria; Elenice Maria Casartelli

doi:10.4025/actascianimsci.v24i0.2519

The influence of feed withdrawal on laying hens' calcium, phosphorus plasma and egg shell quality

Otto Mack Junqueira UNESP - Jaboticabal
Marcelo de Oliveira Andreotti UNESP
Eliana Aparecida Rodrigues UNESP
Douglas Emygdio de Faria USP
Elenice Maria Casartelli UNESP

DOI: https://doi.org/10.4025/actascianimsci.v24i0.2519

Abstract

One experiment was conducted with Hyline W-36 laying hens to determine the influence of feed withdrawal on calcium and phosphorus plasma and eggshell quality. Blood was collected on days 24, 48, 72 and 96h at oviposition and 21h post-oviposition. On the control group, plasma phosphorus was significantly increased from oviposition to 21h post-oviposition. On day two, the group in feed restriction showed higher phosphorus levels 21h post-oviposition. On day 3 and 4, all the values from plasma phosphorus were lower at oviposition and 21h post-oviposition when hens were in feed withdraw. Plasma calcium was not affected during the egg formation in the hens receiving feed “ad libitum”. However, plasma calcium was declined from day 2 to 4 when hens were in feed withdraw. The egg specific gravity and eggshell weight were significantly decreased for hens receiving no feed after day 2.

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Author Biography

Otto Mack Junqueira, UNESP - Jaboticabal

Tem experiência na área de Zootecnia, com ênfase em Exigências Nutricionais dos Animais, atuando principalmente nos seguintes temas: frangos de corte, desempenho, poedeiras comerciais, leitões e galinha poedeira. É Membro do Comitte de Assessoramento e Pesquisador do CNPq Nível 1B Currículo Lattes

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Published

2008-04-29

How to Cite

Junqueira, O. M., Andreotti, M. de O., Rodrigues, E. A., Faria, D. E. de, & Casartelli, E. M. (2008). The influence of feed withdrawal on laying hens’ calcium, phosphorus plasma and egg shell quality. Acta Scientiarum. Animal Sciences, 24, 1021-1025. https://doi.org/10.4025/actascianimsci.v24i0.2519

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Issue

Vol 24 (2002)

Section

Animal Science

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0.9

2019CiteScore

29th percentile