<b>Bone density of broiler chickens fed diets with different amino acid and calcium levels during the during final phase</b> - DOI: 10.4025/actascianimsci.v28i2.647

  • Cristiane Soares da Silva Araújo UNESP Jaboticabal
  • Silvana Martinez Baraldi Artoni UNESP- Jaboticabal
  • Lúcio Francelino Araújo USP
  • Otto Mack Junqueira UNESP Jaboticabal
  • Mário Jeferson Quirino Louzada UNESP Jaboticabal
  • Daniella Oliveira UFRPE
DOI: https://doi.org/10.4025/actascianimsci.v28i2.647

Abstract

Two experiments were carried out aiming at evaluating the effects of different dietary amino acid and calcium profiles on bone characteristics of two chicken strains (Avian Farms and Cobb) from 42 to 49 days of age. At the end of each experiment, two chickens of each replication were sacrificed and their tibiae were collected for analysis of bone characteristics: bone measurements (weight, length and thickness of the compact and spongy layers) and bone density (bone density). A total of 540 birds were used in each experiment, divided into fully randomized blocks with a 3 x 2 factorial scheme, that is, three amino acid profiles (methionine, lysine and threonine – 100, 125 and 150% of NRC recommendations, 1994) and two calcium levels (75 and 100% of NRC recommendations, 1994), with 30 birds per replication. There were not interactions between the two factors. The amino acid or calcium levels did not affect bone density and tibia variables in both strains.

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Author Biography

Lúcio Francelino Araújo, USP
possui graduação em Medicina Veterinária pela Universidade Federal de Goiás (1992), mestrado em Zootecnia pela Universidade Estadual Paulista Júlio de Mesquita Filho (1998) e doutorado em Zootecnia pela Universidade Estadual Paulista Júlio de Mesquita Filho (2001). Atualmente é professor associado da Universidade de São Paulo. Tem experiência na área de Zootecnia, com ênfase em Nutrição e Alimentação Animal, atuando principalmente nos seguintes temas: nutrição e produção de aves e suínos, além da nutrição de cães. Currículo Lattes
Published
2008-02-15
How to Cite
Araújo, C. S. da S., Artoni, S. M. B., Araújo, L. F., Junqueira, O. M., Louzada, M. J. Q., & Oliveira, D. (2008). <b>Bone density of broiler chickens fed diets with different amino acid and calcium levels during the during final phase</b&gt; - DOI: 10.4025/actascianimsci.v28i2.647. Acta Scientiarum. Animal Sciences, 28(2), 203-208. https://doi.org/10.4025/actascianimsci.v28i2.647
Issue
Vol 28 No 2 (2006)
Section
Nonruminant Nutrition

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