EFFECT OF ENZYME SUPPLEMENTATION ON DIGESTIBILITY AND METABOLIZABILITY OF BROILERS TO NUTRIENT REDUCED DIET
Loading...
Date
2009-06
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
A feeding trial was conducted to study the effect of enzyme supplementation on nutrient
digestibility and metabolizability of broilers (0-6wks). In the trial in broilers fed diets supplemented
with enzyme at 0, 250, 500, 750 and 1000 g/ton of feed with a proportionate reduction .in
metabolizable energy (ME-1.25, 2.5, 3.75 and 5%), crude protein (CP-0.75, 1.5, 2.25 and 3%),.
Methionine+cytine (0.5, 1, 1.5 and 2%) and available phosphorus (2.2, 4.4, 6.6 and 8.8 %), the
dry matter (OM) digestibility and protein metabolizability were increased significantly (P<0.05)
in all enzyme supplemented groups. There was no si ~nificant increase in ether extract (EE)
digestibility of treated groups. Highly significant (P<O.Ul) increase in Neutral Detergent Fibre
(NDF), Acid Detergent Fibre (ADF), hemicellulose and cellulose digestibility (%) was observed
in enzyme treated groups than the control. Further, total phosphorus (TP) retention was increased
significantly (P<0.05) by 9.95, 12.68 and 14.06 % in 500, 750 and 1000 g enzyme supplemented
groups respectively over the control and a significant (P<0.05) increase in retention of phytate
phosphorus (PP) was also observed in enzyme treated groups. A significant (P<0.05) increase in ,
nitrogen retention was observed from 5.65 to 6.78 % in enzyme treated groups than control.
Apparent metabolizable energy (AME) was significantly (P<O.OI) increased in 750 and 1000 g
enzyme supplemented groups than other groups.
Description
TNV_IJAR_2009_43(2)79-83