Effect of Phytase and Citric Acid Supplementation on the Growth Performance, Phosphorus, Calcium and Nitrogen Retention on Broiler Chicks Fed with Low Level of Available Phosphorus
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Date
2011
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Abstract
An experiment was conducted to study the effect of phyt.ase and citric acid on the growth
perforinance, phosphorus, calcium and nitrogen retention with sixty 1 day old mixed sex broiler
chicks for 42 days. The expennient consists of four treatments with three replicates and live chicks
in each implicate. The treatments were; Tl-control diet (0.3% available phosphorus), T2-control diet
with 2% citric acid, T3-control diet with 8(X) IJ pliyd.ase enzyme. T4-control diet with 800 k.l phytase
plus 2% citric acid. The results revealed that tlie weight gam of the chicks was significantly liigher
(p<0.05) for groups t.hat received phytase and phytase |Jiis cil.nc acid supjilementation. Feed intake
and feed conversion ratio were significantly higher for group that received both phytase and citric
acid. Phytase and citric acid supplementation indmdually and in combination signilieantly
improved phosphorus retention. Calcium and nitrogen retention were significantly higher for
groups that received supplementation of phytase and pliytase plus citric acid. Mo significant
difference in phosphorus and calcium content of toe samples were observed between broilers of
different diets.