EFFECT OF FEEDING DISTILLERS DRIED GRAIN WITH SOLUBLE (DDGS) WITH OR WITHOUT MULTI-ENZYMES ON THE GROWTH PERFORMANCE OF INDIGENOUS CHICKEN
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Date
2019-07
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College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati
Abstract
The present study was undertaken to investigate the effect of dietary incorporation
of distillers dried grains with solubles (DDGS) with or without multi-enzyme
supplementation on the growth performance of indigenous chicken. A total of one hundred
and eighty (180) day-old indigenous chicks were procured from a few villages of Dhemaji
district. The chicks were reared together for a period of 21 days, up to the point when the
sex of the chicks could be identified, by feeding standard chick feed. On 22nd day, after
knowing the numbers of male and female chicks, they were weighed and randomly divided
into six groups viz. T1, T2, T3, T4, T5 and T6 containing 30 chicks with 3 replicates of 10
chicks in each group. The chicks were wing banded and reared under deep litter system of
management throughout the experimental period following standard and uniform
managemental practices. The birds of T1 group (control) were offered the standard chick,
grower & layer feeds as per BIS, 2007. The birds of T2 group were fed with the same
standard chick, grower and layer feeds as per BIS, 2007 with supplementation of multienzyme
(Xzyme). Maize DDGS was incorporated at 10% level in all the rations for T3 and
T4 groups and the rations for T4 group was supplemented with multi-enzymes. In the same
way, the birds of T5 and T6 groups were fed with rations containing 20% DDGS without
and with enzymes, respectively. The maize DDGS used in the rations was procured from
Brahmaputra Biochem Pvt. Ltd., Jambari, Guwahati.
The feeding trial was conducted for a period of 182 days (13 fortnights) using chick
feeds for first 3 fortnights (0-42 days), grower feeds for next 7 fortnights (43-140 days) and
layer feeds for last 3 fortnights (141-182 days). A metabolic trial was conducted for a period
of 8 days after the completion of feeding trial. During the experiment, average fortnightly
and total feed consumption, fortnightly and total body weight and body weight gain, feed
conversion ratio (FCR), various blood bio-chemicals constituents, balance of nutrients,
survivability rate, carcass characteristics like dressing percentage, relative organ and giblets
weight, organoleptic evaluation, egg quality parameters and economics of production were
studied and recorded.
The average final body weight of indigenous chicken was highest in T2 group
(1643.93±25.22 g) followed by T1 (1607.86±16.29 g), T4 (1603.21±13.88 g), T6
(1596.07±11.78 g), T3 (1589.26±13.83 g) and T5 (1580.00±14.50 g) groups. The average
total feed consumption per bird for different experimental groups was highest in T6 group
(11748 g) and lowest in T1 group (11653 g). The overall FCR of the birds for entire period
was least in T2 group (7.37) followed by T1 (7.51), T4 (7.51), T3 (7.62), T6 (7.64) and T5
(7.69) groups. The per cent survivability of birds was 93.33 in T1, T2, T4 and T6 groups
and 90.00 in T3 and T5 groups. No significant difference (P>0.05) was observed in respect
of final body weight, total and mean daily gain in body weight among the groups and total
feed consumption as well as overall FCRs were found to be comparable among the
treatment groups. Positive balances were observed in N, Ca and P utilization and significant
difference (P0.05) were observed among the groups in respect of the blood constituents viz. Hb.,
blood glucose, total serum protein, blood lipids, blood cholesterol, AST and ALT levels and
serum calcium and significant difference (P0.05) differences
among the experimental groups. The average proximate principles (%) of breast meat of
experimental birds of different groups for moisture, protein, fat and total ash contents were
estimated and no significant difference (P>0.05) was found among the groups in respect of
these proximate principles. Non-significant (P>0.05) difference was found in colour,
tenderness, flavor, juiciness and overall acceptance of the breast meat among the treatment
groups. Comparable values were also observed among the experimental groups in respect of
both the external as well as internal egg quality parameters of the eggs laid by the birds of
different groups. The costs of feeding and production were highest in group- T2 i.e. ₹284.48
& 405.67 and lowest in group- T5 i.e. ₹ 245.28 & 366.47, respectively.