Page 169 - PARVEEN, S

October 2005 to May 2006. All recorded data were Poultry Science,
subjected to analysis of variance in a two factors
(season and flock size) randomized complete block
design. Significant seasonal variations were found
in case of body weight, feed consumption, feed
conversion and performance index. Bird reared in
–1
winter, gained more weight (1.71 kg bird ) than
–1
spring (1.43 kg bird ) and summer (1.31 kg bird –
1 ). Whereas, highest survivability was found in
winter and spring season. Superior (p<0.05)
performance index was noted in birds reared in
winter. The cost of housing per bird ranged from
Tk. 1.54 to Tk. 2.15 at different locations, which
accounted 2.06 to 2.95% of the total cost of
production. While the equipment cost per bird
ranged from Tk. 0.48 to Tk. 0.65, which accounted
0.54 to 0.92 per cent of the total cost of
productions. Chick cost in broiler farming ranged
from Tk. 16 to 23 per bird in different seasons.
Feed, vaccination & medication, litter, labour and
electricity costs ranged from 57 to 60, 3.51 to
4.35,1.24 to 1.74, 3.56 to 5.79, and 1.07 to 1.95 per
cent of the total cost, respectively. The highest
total variable cost (Tk. 78.05) was obtained during
winter followed by summer (Tk. 71.18) and spring
(Tk. 63.68). Gross return from marketing the live
birds indicated that it was higher in winter season
than in spring or summer. Farmers received lower
–1
market price kg live bird, in winter and spring
but, gross return was higher (Tk. 83.66). Savar
production unit gained higher gross return than
other units. Higher gross profit was found in
–1
summer (Tk. 10.33 bird ) from medium size farm
–1
(Tk.7.35 bird ) and lowest in winter (Tk.5.61 bird – were very much acceptable but results from the
1 ). Although gross margin was found higher in
small flocks, but superior gross profit in medium
flocks (Tk. 9.39 vs Tk. 6.13) was due to better
market price. Cost- benefit ratio values ranged
from 1.06 to 1.20.
485 CHOWDHURY, S.D.; ROY, K.R.;
SULTANA, N. & HASAN, M.N. (Dept. of
162
Bangladesh Agricultural
University, Mymensingh). Quality Assessment of
Broiler Feeds from Three Feed Mills in terms of
Nutrient Contents, Productive Performance and
Meat Yields. Bang. J. Anim. Sci., 2005, 34 (1 & 2),
151-160.
Nutrient profile of compound broiler feeds
manufactured in 3 feed mills of Bangladesh (A, B
and C) was investigated and their effects on
productive performance and meat yields were
determined in a feeding trial with 240 day-old
commercial broiler chicks (Cobb-500). The chicks
were randomly distributed in 12 different pens
with 20 chicks each that constituted an
experimental unit. Compound broiler feeds
manufactured in 3 feed mills (feed mills A, B and
C) were randomly considered from 10 feed mills
and different diets from each feed mill were
assigned to birds in 4 different replicate groups
(pens) each of 20. The broilers of all treatment
groups were supplied feeds and water ad libitum
throughout the experimental period. Other
management procedures including lighting pattern,
vaccination, litter management etc. were identical
for all feed mill groups. Nutrient status of the diets
of 3 feed mills although varied, was more or less
content was highest in the diets of feed mill C. It
appeared from birds' live performance that highest
final body weight and lowest FCR were 1752.5 g
and 1.37 respectively in birds that received diets
from feed mill C during a period 30 days only.
Results of productive performances of 3 treatments
birds that received feeds from similar except the
protein content. Crude protein feed mill C
appeared to be most satisfactory. Differences in
edible meat yield characteristics such as dressing
yield, weights of thigh meat, breast meat, wing
meat, liver, heart and abdominal fat did not differ
significantly among birds receiving diets from
different feed mills. Drumstick meat of male-