Whole hatchery waste meal as alternative protein and calcium sources in broiler diets
2011
A study was conducted in which processed
whole hatchery waste meal (WHWM) replaced
fish meal (FM), protein for protein, in broiler diets
at 0, 10, 20 and 30% levels. There were 45 birds
per treatment and 15 birds per replicate. The
feeding trial which lasted for 42 days, was carried
out at the Poultry Unit, Agricultural Research Council,
Glen. Chemical analysis of the two test ingredients
indicated that WHWM had higher contents of ash
(18.12%) and ether extract (23.94%). However,
crude protein content of FM was 73.18% while
that of WHWM was 42.26%. Calcium-phosphorus
ratio was 16.6:1 for WHWM as against 1.5:1 in the
FM. Broilers fed with diet 2 had highest values for
feed intake (118.25 g/bird/day) and weight gain
(50.16 g/bird/day) while those fed with diet 3 were
superior in efficiency of feed utilization (2.31).
Results obtained for carcass traits decreased
with increase in the levels of WHWM in the diets.
Broilers fed with control diet had highest mean
values for eviscerated weight (2.20 kg) and dres-
sing percentage (77.86%). Values recorded for
abdominal fat and internal organs (liver, lungs,
heart and gizzard) did not show any particular
trend. Similarly there were slight variations in the
results obtained for blood parameters. Cost of
feed intake/bird decreased with increase in the
levels of WHWM in the diets.
It can be concluded from the results of this
study that 10% of FM can be replaced with WHWM
in broiler diets without adverse effects on growth
and carcass traits. This approach of turning waste
into a valuable product will provide alternative
protein and calcium sources in broiler diets and
solve the problem of hatching waste disposal in
the hatchery industry.
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