Calcium levels for post-molt commercial laying hens

  • Wilson Rogério Boscolo Unioeste - Toledo/PR
  • Wilson Massamito Furuya UEM
  • Maria José Baptista Barbosa UEM
  • Alice Eiko Murakami UEM
  • Valéria Rossetto Barriviera Furuya UEM
DOI: https://doi.org/10.4025/actascianimsci.v20i0.4404

Abstract

The experiment was carried out in the aviary of Iguatemi Experimental Farm, at Universidade Estadual de Maringá, Maringá, state of Paraná, Brazil, from August 17 to December 6, 1996. After forced molting, 180 commercial laying hens were distributed in a completely randomized design with 5 treatments, 6 replications, and 6 hens for experimental unit. Five isoproteinic (18.68% CP), isoenergetic (2,900.00 kcal ME/kg), isophosphoric (0.46% aP) diets with 3.50%, 3.80%, 4.10%, 4.40% and 4.70% calcium were served. No effects (P > 0.05) of calcium levels were found in the egg laying rate, ration consumption, food conversion and eggshell percentage. A linear increase (P < 0.05) in specific weight was found with the increase of calcium levels. A quadratic effect (P < 0.05) was found in calcium levels on egg weight. It may be concluded that up to 4.7% calcium may be used efficiently for post-molt commercial laying hens.

Downloads

Download data is not yet available.

Author Biography

Wilson Rogério Boscolo, Unioeste - Toledo/PR
Atualmente é professor adjunto b da Universidade Estadual do Oeste do Paraná . Tem experiência na área de Zootecnia, com ênfase em Nutrição e Alimentação Animal, atuando principalmente nos seguintes temas: avaliação de alimentos e nutrição de organismos aquáticos. Atua também na área de tecnologia do pescado, realizando pesquisas como aproveitamento de resíduos da indústria do pescado e desenvolvimento de novos produtos a base de pescado. Currículo Lattes
Published
2008-07-16
How to Cite
Boscolo, W. R., Furuya, W. M., Barbosa, M. J. B., Murakami, A. E., & Furuya, V. R. B. (2008). Calcium levels for post-molt commercial laying hens. Acta Scientiarum. Animal Sciences, 20, 367-371. https://doi.org/10.4025/actascianimsci.v20i0.4404
Issue
Vol 20 (1998)
Section
Zootecny

DECLARATION OF ORIGINALITY AND COPYRIGHTS

- I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. 

The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.

Read this link for further information on how to use CC BY 4.0 properly.

 

Crossref
Scopus
Google Scholar
Europe PMC

0.9
2019CiteScore
 
 
29th percentile
Powered by  Scopus