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International Journal of Poultry Science

.: Home > International Journal of Poultry Science > 2011 > Volume 10 Number 11 > Fabiana Ribeiro Barreiro, Silvana Martinez Baraldi-Artoni, Luiz Augusto do Amaral, José Carlos Barbosa, Annita Morais Girardi, Maria Rita Pacheco and Lizandra Amoroso

Determination of Broiler Femur Parameters at Different Growth Phases

Fabiana Ribeiro Barreiro, Silvana Martinez Baraldi-Artoni, Luiz Augusto do Amaral, José Carlos Barbosa, Annita Morais Girardi, Maria Rita Pacheco and Lizandra Amoroso
Department of Statistical Analysis, Department of Veterinary Clinical and Surgery,45Universidade Estadual Paulista “Júlio de Mesquita Filho”, Jaboticabal,São Paulo, Brazil
Abstract :

The objective of this experiment was to analyse macroscopically the femur and determine the biochemical values at 8, 22 and 42 days of age, producing basic results that can help to understand the pathogeny of the locomotor problems and the broiler physiologic growth. A total of 60 Cobb male broilers were distributed in three age groups (8, 22 and 42 days of age) of 20 birds. All macroscopic measurements, except the cranial compact layer increased (p<0.05) over the course of the ages. The cranial compact layer presented the biggest measure at 22 days of age. The ash percentage increased (p<0.05) until 22 days of age, but at 42 days of age this values decreased. Calcium and phosphorus percentage in ash increased (p<0.05) until 22 days of age and evidenced constancy from 22 to 42 days of age. The biomechanical adaptation capacity of femur was evidenced by the increase of the macroscopic measures over the course of the ages and the different behavior of cranial compact layer at 22 days of age suggested an adaptation attempt of the immature bone to muscle mass increase. The ash and mineral percentage confirmed that the relative growth occurs with more intensity until 21 days of age. The calcium and phosphorus percentage evidenced the physiologic balance acting on the deposition of these minerals in femur.


Keywords :
Broiler, mineral, femur, macroscopic analysis, bone ash

Date Deposited : 25 Feb 2015 13:10

Last Modified : 25 Feb 2015 14:09

Official URL: http://www.pjbs.org

Volume 10, Number 11, - 2011 , ISSN 1682-8356

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