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International Journal of Poultry Science

.: Home > International Journal of Poultry Science > 2009 > Volume 8 Number 6 > O.A. Adebiyi, A.D. Ologhobo and A.S. Agboola

Effects of Microbial Phytase Supplementation on Mineral Composition of Tibia and Mineral Utilization in Broiler Fed Maize - Based Diets

O.A. Adebiyi, A.D. Ologhobo and A.S. Agboola
Department of Animal Science, University of Ibadan, Ibadan, Oyo State, Nigeria
Abstract :

An experiment was conducted to determine effect of supplementing maize - based diet with
different levels of microbial phytase on apparent nutrient bioavailability and tibia bone mineral of broilers.
Eighty, day-old broiler were randomly allotted to five dietary treatments. The control diet contained 0 FTU/kg
microbial phytase which was replaced by 200, 400, 600 and 800 FTU/kg microbial phytase of the basal feed combinations. Phytase supplementation of diet increased P, Ca, Zn, Cu and Phytate - P bioavailability
significantly with 800 FTU/kg microbial phytase inclusion. No significant (p>0.05) difference was observed
in the calcium content (r = 0.94) of the tibia bone of birds fed diets 400 (38.90%), 600 (38.91%) and 800
(39.08%) FTU/kg microbial phytase. Although, the phosphorus contents of birds fed diets containing 200
FTU/kg, 400 FTU/kg and 600 FTU/kg were not significantly (p>0.05) different, the copper and iron levels were however vary significantly. The result also showed a significant correlation (r = 0.98) between the phytase level and phytate phosphorus.

Keywords :
Phytase levels, phytate and maize - based diet, broiler

Date Deposited : 06 Jul 2011 08:20

Last Modified : 06 Jul 2011 08:20

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

Volume 8, Number 6, - 2009 , ISSN 1682-8356

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