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female combined sexes that received feeds from and 1 .94 % chromium. Cadmium, lead, arsenic,
mill A was better than that of feed mill B & C.
Gizzard weight of female and male-female
combined in birds receiving feeds of feed mill A &
B were better than that of feed mill C. The
performance of commercial broilers fed feeds from
different feed mills was satisfactory although birds
that received diets containing highest protein level
of feed mill C showed best results and found to be
most cost effective.
486 HOSSAIN, A.M.M.M.; MONIR, T.;
REZWAN-UL-HAQUE, A.M.; ELAHI, S.F.
(Dept. of Soil, Water and Environment, Dhaka
University, Dhaka); KAZI, M.A.I. & ISLAM,
M.S. (Analytical Research Division, BCSIR,
Dhaka). Heavy Metal Concentration in Tannery
Solid Wastes Used as Poultry Feed and The
Ecotoxicological Consequences. Bang. J. Sci. Ind.
Res., 2007, 42 (4), 397-416.
In Bangladesh, the tannery solid wastes are
converted to protein-concentrate to be used as
poultry feed, fish feed, and in production of
organic fertilizers. Over the last several years it is a
common phenomenon in the largest tanning area of
the country, the Hazaribagh tannery area at the
south-east part of Dhaka city. One of the major
concerns of these activities is the heavy metals,
especially chromium, used in the tanning
processes. A total of 18 samples were collected to
study the heavy metal status of protein-concentrate
production in the tanning area at various stages
from the source to the final product, and to
compare this with the imported ones. The various
types of solid waste processing for protein-
concentrate production were covered in sampling,
and along with the heavy metal status these
processes were studied comprehensively. The
maximum chromium content of the solid waste
was found to be 3.2 %. The final products sampled
at two different places contained as high as 2.49 %
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and mercury contents of all samples were also
determined. The detected maximum and minimum
concentrations of these elements were found to be:
3.888 ppm and 0.991 ppm for cadmium, 30.114
ppm and 7.577 ppm for lead, 2.212 ppm and 0.099
ppm for arsenic, and 13.916 ppm and 0.166 ppm
for mercury.
487 HOSSAIN, M.A. (Govt. Poultry Farm,
Dinajpur); HOSSAIN, M.E. (Dept. of Poultry
Science, Bangladesh Agricultural University,
Mymensingh) & ASAD, L. (Dept. of Animal
Breeding and Genetics, Dinajpur Govt. Veterinary
College, Dinajpur). Effect of Protein Sources on
the Performance of Broiler Under Integrated
Farming System. Bang. J. Anim. Sci., 2006, 35 (1
& 2), 106-114.
In the present experiment, body weight, feed
consumption, feed conversion ratio, protein intake,
protein efficiency, energy intake, energy
efficiency, livability of broiler and fish production
in the ponds relating to different experimental
rations were evaluated. A total of 200 day old
shaver Starbro broiler straight-run chicks were
reared on the pond in two treatment groups. Broiler
in treatment group T 1 reared over pond P 1 fed on
the ration ER 1 (contained soybean meal and fish
meal), on the ther hand broilers in treatment group
T 2 reared over pond P 2 fed on the ration ER 2
(contained fish meal). The average total body
weight and body weight gain of broiler at the end
of 8 weeks were found highest in treatment group
T 1P 1 (1655.99 and 1615.88 g) in comparison with
those of T 2P 2 (1574.11 and 1534.52 g) but these
differences were non-significant. There were
significant differences in feed consumption and
feed conversion ratio between the treatment groups
and the better FCR was found in T 1P 1 during the
experimental period. The total protein intake of
broilers did not differ significantly among the