PROCESSING AND UTILIZATION OF EXPELLER PRESSED MUSTARD SEED CAKE IN BROILER RATION
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Date
2010
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Birsa Agricultural University, Kanke, Ranchi, Jharkhand
Abstract
The present experiment was designed to study the processing and
utilization of expeller pressed mustard cake in broiler ration.
Three hundred and fifty (350) day old commercial broiler chicks
were procured from a from Growell hatchery, Bokaro, Jharkhand for the
experiment. Chicks were weighed and divided randomly in seven groups,
namely T1, T2, T3,T4, T5,T6 and T7 in such a way that their mean body
weight did not differs significantly. Chicks in each group were further
divided into five replicates of 10 birds in each. Birds were kept on deep
litter system in well lighted and ventilated rooms.
2
Broiler starter and finisher rations were formulated containing
various nutrients as suggested by ICAR (1998) according to experimental
plan. The control (T1) group contained GN cake as protein supplement
whereas in group T2,T3, and T4 it was replaced with Exp. MSC at 25%,
50% & 75% level respectively (on protein equivalent basis).
The ingredient composition of treatment groups T5, T6 and T7 were
similar to T2, T3 and T4 but the MSC will be treated with 0.4% copper
sulfate. The body weights of individual birds were taken at weekly
intervals. The feed consumption of each replicate was recorded at weekly
intervals. The experiment continued for 6 weeks period and then
metabolic trial was conducted on 5 birds from each group following
standard procedure.
Important findings of the experiment were as follows:
The average weekly feed consumption in various experimental
groups did not differ significantly indicating that ration containing Exp.
MSC either untreated or copper sulphate treated were equally palatable
as GNC containing rations.
The total gain of live weight in 6 weeks period did not differ
significantly. The finding indicated that the GNC replaced with Exp. MSC
up to 75% level, on protein equivalent basis had no adverse effect on
growth of the broiler chicken. The treatment of Exp. MSC with 0.4%
copper sulphate did not show beneficial effect compare to untreated Exp.
MSC.
3
The average daily retention of Nitrogen and Nitrogen retention as
percentage of N-intake in various groups did not differ significantly,
indicating that utilization of nitrogen was optimum in all groups.
The average daily retention of calcium was significantly lower in
T1, T2 and T5 groups compare to T3, T4, and T7 groups. Ca-retention as
percentage of Ca-intake was significantly lower in T1, T2 and T5 groups.
The results indicated that Ca-intake (g/day) as well as Ca-retention was
significantly more on high level of MSC containing diets.
The average daily retention of phosphorus was significantly higher
in Exp. MSC containing groups which corresponded to significantly
intake of phosphorus.
The protein efficiency ratio in different experimental groups did
not differ significantly indicating that protein quality of Exp. MSC was
equally good as that of GNC protein.
The feed conversion ratio (FCR) in different groups did not differ
significantly indicating that birds utilized feed consumed with equal
efficiency for the gain in body weight.
The carcass characteristics of broiler chicken in different
experimental groups did not differ significantly indicating that feeding of
Exp. MSC had no adverse effect on carcass characteristics.
4
The average organoleptic test scores in respect of taste and overall
acceptability of meat of the broiler chicken did not differ significantly
finding indicating that feeding of Exp. MSC had no undesirable effect of
meat quality.
The incorporation of Exp. MSC at various levels reduces the total
cost of feed in the ratio of the incorporation. The average cost of feed per
kg gain in body weight was found to be lower in Exp. MSC containing
ration.
Description
PROCESSING AND UTILIZATION OF EXPELLER PRESSED MUSTARD SEED CAKE IN BROILER RATION
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