Calcium levels in commercial laying hen diets in the second period of egg production - DOI: 10.4025/actascianimsci.v27i1.1240

Authors

  • Eliana Aparecida Rodrigues FCAVJ
  • Otto Mack Junqueira Universidade Federal de Mato Grosso do Sul
  • Mauricio Valerio FCAVJ
  • Marcelo de Oliveira Andreotti Universidade Federal de Mato Grosso do Sul
  • Luciana Cardoso Cancherini FCAVJ
  • Douglas Emygdio de Faria Universidade de São Paulo
  • Rosemeire da Silva Filardi FCAVJ

DOI:

https://doi.org/10.4025/actascianimsci.v27i1.1240

Keywords:

muda forçada, qualidade da casca, unidade haugh

Abstract

The experiment was carried out to evaluate the effects of calcium levels in commercial laying hen performance in the second period of egg production. 192 laying hens - 68 weeks of age were used. The experimental design was randomly in a 3x2 factorial arrangement: (0.5; 2.0 and 3.5% of calcium during the pause period and 2.0 and 3.6% of calcium during egg laying period). The variables studied were: ration consume production, weight and mass of egg, feed conversion, albumen quality and external quality of eggs. Egg weight, feed conversion and internal quality of the eggs were not influenced by the treatments in the pause period and in the egg production period. The external quality characteristics of the eggs were influenced by the treatments and the best results were obtained with the 2.0% calcium level at the pause period and 3.5% at the egg production period

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Author Biography

  • Eliana Aparecida Rodrigues, FCAVJ
    possui graduação em Zootecnia pela Faculdade Associadas de Uberaba (1985) , graduação em Zootecnia pela Faculdade de Zootecnia de Uberaba (1985) , especialização em Zootecnia pela Escola Superior de Agricultura de Lavras (1990) , mestrado em Zootecnia Produção Animal Jaboticabal pela Universidade Estadual Paulista - Campus Jaboticabal (2002) , doutorado em Zootecnia pela Universidade Estadual Paulista Júlio de Mesquita Filho (2005) , ensino-fundamental-primeiro-grau pela EEPG Cap. Antônio Justino Falleiros (1978) e ensino-medio-segundo-grau pelo Colegio Ricardo Misson (1981) . Atualmente é Professor substituto do Centro Federal de Educação Tecnológica de Uberaba e Pofessora de 1º e 2º grau - efetiva do Centro Federal de Educação Tecnológica de Uberaba. Tem experiência na área de Zootecnia , com ênfase em Produção Animal. Atuando principalmente nos seguintes temas: poedeiras comerciais, NÃVEIS DE CÃLCIO, NÃVEIS DE SÓDIO, QUALIDADE DA CASCA, DESEMPENHO Currículo Lattes

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Published

2008-03-20

Issue

Vol. 27 No. 1 (2005)

Section

Nonruminant Nutrition

License

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How to Cite

Rodrigues, E. A., Junqueira, O. M., Valerio, M., Andreotti, M. de O., Cancherini, L. C., Faria, D. E. de, & Filardi, R. da S. (2008). Calcium levels in commercial laying hen diets in the second period of egg production - DOI: 10.4025/actascianimsci.v27i1.1240. Acta Scientiarum. Animal Sciences, 27(1), 49-54. https://doi.org/10.4025/actascianimsci.v27i1.1240
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