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Articles by M.R. Rahman
Total Records ( 5 ) for M.R. Rahman
  M.E. Hossain , S.D. Chowdhury , M. Ahammed , M.A.H. Pramanik and M.R. Rahman
  A total of 201 Kasila broiler parent chicks were reared in an open-sided house from one-day to 22 weeks of age and growth performance and uniformity were monitored. The birds were maintained on quantitative feed restriction and their adaptability was evaluated. The experimental period was divided into three phases, phase I (day-old to 2 weeks), phase II (3 to 8 weeks) and phase III (9 to 22 weeks). The birds were provided with identical care and management like feeding, watering, ventilation, lighting, vaccination and disease control programme. Female chicks followed standard growth and feed consumption curves very closely while, male followed standard growth curve irregularly. The body weight of females at the end of 2nd, 8th and 22nd weeks were slightly higher but close to the standard while, males were little higher at 2nd & 22nd week but little lower at 8th week. Body weight gain of both females and males were lower during 3 to 8 weeks and higher during 9 to 22 weeks of age. Kasila females exhibited acceptable uniformity ranges during the study period except at 20th week. But the males showed lower trends in uniformity in most of the growth period. The birds were more prone to Mycoplasmosis during the growing period in spite of adopting preventive measures including medication. Kasila broiler parents are adaptable under Bangladesh condition if environmental stress could be minimized by taking appropriate measures and following breeder`s instructions.
  M.J. Alam , S. Dewan , M.R. Rahman , M. Kunda , M. Kunda , M.A. Khaleque and M.A. Kader
  The experiment was carried out simultaneously to compare the growth performance of Amblypharyngodon mola in rice fish culture system with Barbodes gonionotus and cyprinus carpio in farmer`s rice fields near to Bangladesh Agricultural University campus, Mymensingh for a period of 113 days from 12th August to 3rd December, 2002. Three treatments viz., T1 with A. mola and B. gonionotus, T2 with A. mola and C. carpio and T3 as control (without fish) were used in this study. Each treatment was provided with three replications. All the treatments were fertilized with urea (200 kg ha-1), TSP (150 kg ha-1) and MP (75 kg ha-1). With respect to cultural suitability, A. mola showed comparatively high growth rate and survival rate when it was stocked with C. carpio than with B. gonionotus. Among the three species A. mola showed the lowest growth rate and C. carpio showed the highest growth rate by average, net and percentage of increase. The production of fish were also recorded higher (576.27 kg ha-1) in the treatments stocked with A. mola and C. carpio than (298.91 kg ha-1) the treatment stocked with A. mola and B. gonionotus. However, the growth rate and survival rate of A. mola were always higher in treatment T1. Significantly (P<0.01) higher yield of grain and straw were obtained in the treatments with fish than without fish and they were found to increase over the control by 15.88-19.34% for grain and 12.78-15.34% for straw. The initial values (before rice transplantation) of soil pH, organic matter, total nitrogen, phosphorus and potassium contents did not show any significant difference among the treatments in most cases, but the final values (after harvest of rice and fish) of the same were recorded significantly higher in the treatments with fish than that of control (without fish) in most of the cases except pH.
  M.A.K. Azad , M.R. Rahman , Z. Rahman , M.A. Kader , M.M. Haque and M.J. Alam
  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 T2. Tilapia showed the second highest (3.65) SGR (% per day) in T1. 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. T1 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 T1, 63.95, 37.24, 86.86 and 65.63 g in T2 and 70.84, 47.65, 70.42 and 72.87 g in T3, respectively. The highest and the lowest weight gain were found in T1. Silver carp attained maximum weight gain (91.71 g) in T1 where pangas showed the lowest (30.61g) in the same treatment. Among the treatments, the highest production was found in T1 (1974.02 kg/ha/90 days) which was significantly higher than other treatments. The production in T2 and T3 were 1405.59 and 1522.01 kg/ha/90 days but there was no significant variation between T2 and T3. 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.
  B. Mondal , M.R. Rahman , M.J. Alam , A.R. Tarafder , M.A.B. Habib and M.A. Khaleque
  The experiment was conducted to evaluate the performance of organic nutrients of Unripe Tomato Juice (URTJ) added with 0.2 g L-1 urea and Bold Basal Medium (BBM) as standard, for growing of C. ellipsoidea in laboratory condition for three months. C. ellipsoidea was cultured four different concentrations such as 0.7, 1.4, 2.8 and 4.15 g L-1 URTJ with added 0.2 g L-1 urea and Bold Basal Medium for a period of 16 days. The initial cell density of C. elliposidea was 2.90x mL-1, which attained a maximum cell density of 108.03x mL-1 in BBM followed by 75.24x, 69.67x, 54.80xand 27.35x mL-1 in 2.8, 1.4, 0.7 and 4.15 g L-1 of URTJ media with added 0.2 g L-1 urea, respectively on the 12th day of culture. Similar trend was observed in case of optical density of C. ellipsoidea. The proximate composition of C. ellipsoidea cultured in URTJ media was analyzed and found that the ranges of crude protein, crude lipid, ash and moisture ranged from 22.39-39.91%, 3.66-5.19%, 10.10-11.11% and 8.15-9.45%, respectively. Results showed that growth of C. ellipsoidea was significantly (p<0.05) higher in the concentrations of 2.8 g L-1 of URTJ with added 0.2 g L-1 urea than other concentrations (0.7, 1.4 and 4.15 g L-1) of URTJ with added urea at the temperature of 29.04°C, dissolved oxygen of 5.71 mg L-1, pH of 8.08 and light intensity of 1583 luxm-2s-1
  M.S.H. Bhuiyan , M.A.K.Azad , M.K. Hossain , S. Ahammed , M.R. Rahman , B. Mondal , M.A. Rahman and M.A. Wahab
  The experiment was conducted in Itna Upazila, Kishoreganj from July 2001 to June 2002. It has included survey of waterbodies, implementation of different management policies and affect of aquatic environmental issues on hoar fisheries in Itna Upazila, Kishoreganj. There are 16 hoars in Itna Upzila which were comprising of 83 jalmohals. Three management policies including revenue- based leasing system in 93% area of jalmohal, NFMP in 7% area of jalmohal with fisheries resources development project including sanctuary, have been practiced in Itna. Aquatic environmental degradation by siltation, submersible roads and flood control embankments, deforestation, conversion of water body into agricultural land, use of agro-chemicals and surface water abstraction for boro crop, social and political unwanted influence were creating a great threat to fisheries sustainability. It has been suggested that government should emphasize the sustainable haor fisheries development by implementing community-based management practices as part of an integrated holistic development plan of the haor areas.
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