Effect of nonphytate phosphorus and phytase levels on broiler tibia

Authors

  • Maria Cristina de Oliveira Universidade de Rio Verde
  • Dionatan da Silva Universidade de Rio Verde
  • Fernando Carlos Loch Universidade de Rio Verde
  • Antonio Carlos de Laurentiz UNESP - Ilha Solteira
  • Otto Mack Junqueira UNESP - Jaboticabal

DOI:

https://doi.org/10.5380/avs.v14i1.13357

Keywords:

aditivos, enzimas, qualidade óssea, additives, bone quality, enzymes

Abstract

It was evaluated the effect of nonphytate phosphorus (NNP) and phytase on broiler tibia.One thousand and two hundred chicks were allocated in a completely randomized designand factorial arrangement 4 x 3 (NPP x phytase levels), with four replicates. NPP levels, ateach phase, were 0.45, 0.37, 0.29 and 0.21% - initial, 0.41, 0.33, 0.25 and 0.17% - growth,and 0.37, 0.29, 0.21 and 0.13% - withdrawal. Phytase levels were 0, 500 and 1000 FTU/kgof diet. There was no effect on diameter at 21 days of age. Tibia with lower weight, lengthand diaphysis, distal epiphysis and average densities e proximal epiphysis density resultedfrom NPP reduction from 0.37 to 0.29% and from 0.29 to 0.21%, respectively. Inclusion of500 FTU/kg of phytase improved length and diaphysis density of the tibia, independent ofNPP levels. Diets with NPP, at initial, growth and final phases, of 0.37, 0.33 and 0.29%,respectively, supplemented with 1000 FTU/kg of phytase, can be used with no negativeeffect on bone quality in broilers.

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Published

2009-12-03

How to Cite

de Oliveira, M. C., da Silva, D., Loch, F. C., de Laurentiz, A. C., & Junqueira, O. M. (2009). Effect of nonphytate phosphorus and phytase levels on broiler tibia. Archives of Veterinary Science, 14(1). https://doi.org/10.5380/avs.v14i1.13357

Issue

Vol. 14 No. 1 (2009)

Section

Preventive Veterinary Medicine

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