EFFECT OF DIFFERENT DIETARY LEVELS OF OKARA MEAL (SOYBEAN BYPRODUCT) IN JAPANESE QUAIL RATION
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Date
2011
Authors
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Publisher
Birsa Agricultural University, Kanke, Ranchi, Jharkhand
Abstract
The present research was carried out to study the effect of
different dietary levels of okara meal (soybean byproduct) in Japanese
quail ration on production parameters, carcass characteristics and
nutrient utilization of the quails.
For this purpose, two hundred (200) one week old commercial
Japanese quail chicks were randomly assigned to four treatment
groups (T1, T2, T3 and T4) in equal number in such a way that their
mean body weight did not differ significantly. Group T1 served as
control having conventional feed ingredients as per NRC (1984) feeding
standard, while Okara meal (soybean byproduct) was incorporated at
25, 50 and 75 per cent levels in groups T2, T3 and T4, respectively,
replacing groundnut cake on protein equivalent basis. Feeding trial
continued for 42 days period followed by a metabolic trial adopting
standard procedures. Body weight of all birds was recorded at weekly
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interval. Daily feed consumption, digestibility of nutrients, balance of
nitrogen, calcium and phosphorus, feed conversion efficiency, carcass
quality and economics of feeding were recorded.
The quantity of overall average total or daily feed consumption in
four treatment groups did not differ significantly. The findings indicated
that Okara meal containing rations were equally palatable to birds.
From the very beginning live weight of chicks in different groups
differ significantly (P<0.01). Significantly higher body weights were
recorded in chicks of group T3 compared to control group T1. In the last
experimental week the average total body weight of group T3 was
significantly higher compared to groups T1, T2, and T4. However, groups
T1, T2 and T4 did not differ significantly between each other. The higher
gain in body weight was noted in group T3 which did not differ
significantly from groups T2 and T4 but differ significantly from control
group T1.
The feed conversion efficiency and protein efficiency ratio in
different treatment groups did not differ significantly among the four
treatment groups.
The average daily retention of nitrogen (g/day) was significantly
higher in group T4 compared to control group T1. However, groups T2,
T3 and T4 did not differ significantly. N-retention as per cent of N-intake
was significantly higher in group T2 compared to control group T1.
However, group T2, T3 and T4 did not differ significantly.
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The average daily retention of calcium found to be non-significant
among the different groups indicating that inclusion of Okara meal did
not affect the calcium utilization in quail chicks.
The average daily retention of phosphorus as well as phosphorus
retention as per cent of P-intake were significantly higher in group T3
compared to groups T1, T2 andT4 indicating that in group T3 , there is
less excretion of phosphorus in excreta.
Dressing percentage, giblet percentage and non-edible percentage
did not differ significantly among the four treatment groups. The
findings indicated that inclusion level of Okara meal had no adverse
effect on meat quality of quails.
Scores of various organoleptic tests revealed non-significant
differences among four treatment groups indicating that inclusion of
Okara meal had no adverse effect on the sensory and taste quality of
meat.
The cost of feed decreased proportionally with the increased level
of Okara meal in the diet. The reduction of cost was 10.76, 21.94 and
32.70 per cent in groups T2, T3 and T4, respectively, than the control
ration (T1).
The average cost per kg gain in body weight also decreased
proportionally with the increased level of Okara meal in the diet. The
reduction of cost was 9.97, 21.63 and 33.79 per cent in groups T2, T3
and T4, respectively, as compared to control ration (T1).
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From the findings of the present study, it may be concluded that
growth performance of quail chicks was best at 50 per cent inclusion of
Okara meal replacing groundnut Cake on protein equivalent basis with
distinct economical advantages and without any adverse effect on meat
quality.
Description
EFFECT OF DIFFERENT DIETARY LEVELS OF OKARA MEAL (SOYBEAN BYPRODUCT) IN JAPANESE QUAIL RATION
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