EFFECT OF FEEDING DIETS CONTAINING RAPESEED MEAL WITH OR WITH OUT ENZYMES ON PERFORMANCE OF JAPANESE QUAILS
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Date
2016-10
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SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA
Abstract
ABSTRACT:
An experiment was conducted to investigate the effect of feeding diets
containing rapeseed meal (RSM) at 0%, 2.5%, 5%, 7.5% and 10% with or without
enzymes on performance, serum bio chemicals, carcass characteristics and cost
economics of Japanese quails. The diets prepared were basal diet/control diet, T1;
control diet containing 2.5% RSM, T2; control diet containing 2.5%
RSM+ENZYMES, T3; control diet containing 5% RSM, T4; control diet containing
5% RSM+ENZYMES, T5; control diet containing 7.5% RSM, T6; control diet
containing 7.5% RSM+ENZYMES, T7; control diet containing 10% RSM, T8; control
diet containing 10% RSM+ENZYMES, T9. Five hundred and fortey dayold Japanese quail chicks were divided at random in to nine groups of three replicates each with 20 birds per replicate and allotted to nine experimental diets (T1 to T9) formulated as per ICAR, 2013 feeding standards for grower (0-3weeeks) and finisher (3-5weeks) phases.
The chemical composition of RSM contained 91.2% (DM), 35.2% (CP),
9.14% (CF), 3.58% (EE), 7.12% (TA) and 44.96% (NFE).
No significant differences in body weights were observed during grower (0-
3weeeks) and finisher phase (3-5weeks) by feeding diets containing RSM (at 0%,
2.5%, 5%, 7.5% and 10%) with or without enzymes in Japanese quails. However
numerically lower body weights were observed in 10% RSM i.e. T8 (210.26 gm)
group and higher body weights were observed.
The effect of feeding diets containing RSM at 0%, 2.5%, 5%, 7.5% and 10%
with or without enzymes on body weight gains were non significant during grower (0-
3weeks), finisher (3-5weeks) and also overall period (0-5weeks) of Japanese quails.
However numerically lower body weight gains were observed in 10% RSM i.e. T8
(207.68 gm) group and higher body weight gains were observed in 2.5% RSM with
enzymes i.e. T3 (213.36 gm) group. Significantly higher feed intake was observed in 10% RSM i.e. T8 (225.15 gm) over control group i.e. T1 (206.81 gm) during grower phase. Similarly, during finisher phase lower feed intake was observed in 7.5% RSM diet i.e. T6 (271.01gm). no significant differences in overall feed intake was observed. The cumuklative feed intake (P>0.05) was increased linearly with increasing the RSM in experimental diets.
Significantly (P<0.01) poor feed efficiency was observed in 10% RSM (1.92)
i.e. T8 in comparison with control group (1.73) i.e. T1 during grower (0-3weeeks)
phase. However numerically poor feed efficiency was observed in 10% RSM i.e. T8
group (2.42) than the control group i.e. T1. There were no significance differences in carcass characteristics viz., dressing percentages, liver, heart and gizzard weights of Japanese quails by feeding diets
containing RSM (0%, 2.5%, 5%, 7.5% and 10%) with or without enzymes.
Significant differences were not observed in serum biochemical parameters
i.e. total cholesterol, total protein, serum alanine transaminase (ALT) and serum
aspartate transaminase (AST) content of Japanese quails by feeding diets containing
RSM ( 0%, 2.5%, 5%, 7.5% and 10% ) with or without enzymes.
The mortality percentage of Japanese quails were 0, 3.33, 3.33, 5, 6.66, 3.33,
3.33, 13.33 and 10% respectively for the treatment groups T1, T2, T3, T4, T5, T6, T7, T8
and T9.
The feed cost was reduced by the incorporation of RSM in the diet and
income over feed cost per bird was increased (P<0.05). The highest income over feed
cost/ bird of Rs. 20.34 was observed in Japanese quails fed with diets containing 10%
RSM (T8) and was higher by 40 paise/bird in comparison with the control group.
It can be concluded from the results of the present experiment that RSM
can be included at 10% level in the diets of Japanese quails for higher income, to
overcome the shortage of protein supplements and for effective utilization of available
unconventional protein supplements.
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