EFFECT OF PHYTATECONTENTS OF CEREAL BY-PRODUCTS ON BIOAVAILABILITY OF
TOTALPHOSPHORUS IN POULTRY
Ishtiaq Ahmad
Department
of Animal Nutrition,
University of
Agriculture,
Faisalabad,
Pakistan
Abstract
Four
cereal by-products were examined for their total and phytate phosphorus
contents. Feeding trial for bioavailability was conducted on 18 weeks old
cockerels of White Leg Horn breed which were starved for24 hours and were
forced-fed 30 grams of finely ground single feedstuff and droppings were
collected at pre-determined time intervals. The bioavailability of total
phosphorus for wheat bran, rice polishing, wheat middling and gram kara was
37.11 , 15.37,61.32 and 62.64%, respectively while phytate phosphorus contents
were 0.66, 1.16, 0.24 and 0.17%, respectively. The bioavailability of total
phosphorus was negatively correlated with the phytate phosphorus contents of
these feed stuffs (P< 0.01 ).