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ABSTRACT: The study was conducted at dairy and cattle improvement farm, Hathazari, Chittagong for a period of one year. A total of 82 dairy cows were selected during the period from June 03-July 04 and their information regarding milk production upto 180 days, productive and other reproductive parameters were recorded from farm record book. Average milk production (459.09 ± 138.09 liter), calving interval (634.59 ± 223.92 days), age at puberty (1205.02 ± 313.80 days), service per conception (1.88 ± 1.09), gestation length (273.08 ± 7.48 days) and birth weight of fetuses (18.78 ± 34 kg) were observed. The minimum and maximum value of these results was also observed. The highest milk production (487.54 ± 109.73 liter) was found in the cows with parity number 4-8 and the second highest (456.84 ± 169.58 liter) was found with the parity number 2 and the lowest milk production (445.79 ± 86.64 liter) was found with the parity number 3. The average production of milk was observed (473.44 ± 134.15 liter) in the cows required interval between 370-590 days and 444.74 ± 142.11 liter found in the cows required 591-1365 days. When the range of age at puberty was 1186-2270 days and 665-1185 days the average production of milk was 468.56 ± 161.92 liter and 450.50 ± 113.56 liter was observed, respectively. Comparatively more milk production was found (461.52 ± 151.89 liter) in cows required less number of services per conception was 1-2 than the cows required more number of services per conception was 3-6 and their milk production was 452.84 ± 96.60 liter. There was no any significance difference of production of milk among the different variables.
Pakistan Journal of Nutrition. 01/2008;
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ABSTRACT: An experiment was conducted to evaluate the water quality, growth and production of fishes at different species compositions in polyculture using tilapia ( Oreochromis niloticus ), pangas ( Pangasius hypophthalmus ), mrigal ( Cirrhinus mrigala ) and silver carp ( Hypophthalmichthys molitrix ). The experiment was conducted for a period of 90 days from September 8, to December 7, 2002 at the Fisheries Faculty Field Laboratory of Bangladesh Agricultural University, Mymensingh. There were three treatments each with three replications. In all the treatments, the stocking density was 100 fish/decimal at different species compositions. All the ponds were subjected to same regime of feeding and fertilization. Fortnightly random sampling was done to adjust the feeding rate. In this experiment, mrigal showed the highest SGR (% per day) value (3.74) in T<sub>2</sub>. Tilapia showed the second highest (3.65) SGR (% per day) in T<sub>1</sub>. Specific growth rate (% per day) of pangas was comparatively lower in all treatments. Mean survival rates of various species ranged from 90.63 to 91.10%. Comparatively, tilapia showed the highest survival rate where pangas showed the lowest. T<sub>1</sub> showed the highest survival rate but there was no significant variation among the treatments. Weight gain (g) of tilapia, pangas, mrigal and silver carp were 89.18, 30.61, 85.75 and 91.71 g in T<sub>1</sub>, 63.95, 37.24, 86.86 and 65.63 g in T<sub>2</sub> and 70.84, 47.65, 70.42 and 72.87 g in T<sub>3</sub>, respectively. The highest and the lowest weight gain were found in T<sub>1</sub>. Silver carp attained maximum weight gain (91.71 g) in T<sub>1</sub> where pangas showed the lowest (30.61g) in the same treatment. Among the treatments, the highest production was found in T<sub>1</sub> (1974.02 kg/ha/90 days) which was significantly higher than other treatments. The production in T<sub>2</sub> and T<sub>3</sub> were 1405.59 and 1522.01 kg/ha/90 days but there was no significant variation between T<sub>2</sub> and T<sub>3</sub>. Considering the above, pangas showed the lowest growth performance and production in all treatments compare with other species. From the findings of the present study, it can be said that polyculture of pangas with tilapia is not suitable, but it may be suitable with carps and for this further research is necessary.
Pakistan Journal of Biological Sciences. 01/2004;
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ABSTRACT: Three types of rasogolla were prepared from cow milk chhana and buffalo milk chhana named as A (100% cow milk chhana). B (100% buffalo milk chhana) and C (50% cow + 50% buffalo milk chhana). Quality of those was evaluated by physical and chemical tests. Rasogolla made from cow milk chhana gained the highest organoleptic score. In addition the addition of 50% buffalo milk chhana with 50% Cow milk chhana Produced rasogolla nearly similar to A type rasogolla.
Pakistan Journal of Nutrition. 01/2003;
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ABSTRACT: A total of 15 young rabbits (kits) of 35 days old were randomly allocated to same concentrate mixture (T2) in a completely randomized design. All the rabbits were offered ad-libitum green grass with same concentrate mixture. All the animals were kept in the same management. The feed intake, live weight changes and feed conversion efficiency was recorded. DM intake in three different groups (A, B, C) were 350.53?46.57, 403.62 ± 41.89 and 389.30 ± 53.71 (g/wk) which were not significant. The average daily gains in group A, B and C were 11.25 ± 8.71, 15.20 ± 8.33 and 14.43 ± 9.84 respectively and the differences among groups were not significant. The differences in growth velocity among different groups were not significant. Feed conversion efficiency were 4.45, 3.79 and 3.85 for group A, B and C respectively and the values were found non-significantly different. The result indicated that feeding of mother in terms of energy did not have any significant effect on DM intake, live weight changes, growth velocity and feed conversion efficiency upon their kits.
Journal of Biological Sciences. 01/2002;
