Effect of Supplementation of Fiber Degrading Enzymes on Performance of Broiler Chickens Fed Diets Containing De-Oiled Rice Bran
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Date
2015
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Abstract
The aim of this trial was to examine the possibilities of effective utilization of de-oiled rice bran
by supplementing xylanase enzyme in broiler ration and thereby the performance of broiler
chickens. One hundred and sixty unsexed day-old broiler chicks (vencobb) belonging to a single
hatch, were purchased from a commercial hatchery, wing banded, weighed and randomly allotted
into five experimental groups, comprising two replicates of sixteen chicks each. The experimental
diets were T -Control (3% CF without xylanase), T -3% CF with xylanase, T -3.5% CF with c 1 2
xylanase, T -4% CF with xylanase and T -4.5% CF with xylanase. Xylanase supplemented at the 3 4
rate of 10 g/100 kg feed. De-oiled rice bran was used as a source of crude fibre. Body weight gain
and feed consumption was significantly (p<0.05) higher in treatment group, when compared to
control group. Mortality rate was significantly (p<0.05) lower in enzyme supplemented high fiber
group, when compared to control group. There was no significant (p>0.05) variation among the
treatment and control group in terms of Feed Conversion Ratio (FCR), Protein Efficiency Ratio
(PER), Dressing percentage, Eviscerated weight and Abdominal fat pad (percentage). However,
breast muscle, thigh muscle and giblet weight (percentage) was significantly (p<0.05) higher in
enzyme supplemented high fiber diet fed group, when compared to control group. Among the
treatment groups, net profit Rs/kg body weight gain was highest in T4 (4.5% CF with xylanase)
group. It was concluded that maintaining the maximum fiber level along with incorporation of
xylanase as fiber degradable enzyme in feed may have better cost benefit ratio than that of low
fiber diet without xylanase.
Description
TNV_AJAVA_2015_10(4)179-184
Keywords
Veterinary Science