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Articles by S.U. Ahmed
Total Records ( 7 ) for S.U. Ahmed
  F. Ahmed , M.S. Rahman , S.U. Ahmed and M.Y. Miah
  An investigation was made on the performance of 144 unsexed Van Cobb broiler chicks from 21 days to 42 days of age. The chicks were fed on soybean meal (SM) based iso-nitrogenous and iso-energetic diet incorporating phytase with the levels of 0.0, 0.50, 1.00 and 1.50 g/kg diet for better utilization of the basal diet. The growth rate, feed intake, feed consumption, dressing yield and profitability increased as the level of phytase supplementation increased and the level of phytase had no effect on survivability. The addition of phytase seemed to be effective to overcome the antinutritive effect of phytate phosphorus and non-starch polysaccharides (NSP) on broiler performance. Therefore, it was concluded that 1.50 g/kg phytase may be incorporated in SM based broiler diet for profitable production.
  S.M.L. Kabir , M.M. Rahman , M.B. Rahman , M.M. Rahman and S.U. Ahmed
  The research work was conducted on "Hubbard Isa Starbro" broilers to evaluate the dynamics of probiotics relating to live weight gain, carcass yield, weight of cut up meat parts and immune response. Day old broiler chicks were divided into four groups as group A (Vaccinated probiotics fed group), B (Nonvaccinated probiotics fed group), C (Vaccinated conventional fed group) and D (Nonvaccinated conventional fed group). Groups C and D were taken as control birds fed with commercial ration and groups A and B as experimental birds were fed with commercial ration with the addition of 2gm probiotics (Protexin® Boost)/10 litres drinking water upto 6th week of age. The result evidenced the following information: (a) The live weight gains obtained were significantly (p<0.01) higher in experimental birds as compared to control ones at all levels during the period of 2nd, 4th, 5th and 6th weeks of age, both in vaccinated and nonvaccinated birds. (b) A significantly (p<0.01) higher carcass yield occurred in broiler chicks fed with the probiotics on the 2nd, 4th and 6th week of age both in vaccinated and nonvaccinated birds. The weight of leg was found significantly (p<0.01) greater for experimental birds as compared to control ones on the 2nd, 4th and 6th week of age. A significantly (p<0.01) higher breast weight in broiler chicks fed with the probiotics was observed on the 4th and 6th week of age. Analogously a significantly (p<0.05) higher breast portion weight was found in experimental birds as compared to control ones during 2nd week of age. (c) The antibody production was found significantly (p<0.01) higher in experimental birds as compared to control ones. Significant differences were also observed in the weight of spleen and bursa due to probiotics supplementation. The results of the study thus revealed that probiotics supplementation promoted significant influence on live weight gain, high carcass yield, prominent cut up meat parts and immune response.
  P.K. Sarker , S.U. Ahmed , S. Rahman and D. Dey
  Present study deals with the suitability and production potential of two exotic fish species (GIFT: Genetically Improved Farm Tilapia; O. niloticus, C. carpio) as mono culture and mixed culture system of integrating a short term (mid August-mid December) brackish water aquaculture in the south-west coastal paddy fields of monocropped coastal saline soil at high rain fed region during monsoon season. Twelve paddy plots size ranged from 1320-2080 m2 with peipheral trenches (40 cm depth and 45 cm width) and one meter deep ditch in 3% of the area were stocked with fish at a density of 5928 ha-1 for mono and mixed culture (50+50%), after 105 days of rearing average weight and production rate of fish from monoculture of GIFT (T1), mixed culture of GIFT and C.carpio (T2) and monoculture of C. carpio were found 112.5 g, 479.36 kg; (114.2+110.6 g); (241.68+185.21 kg); 114.03 g, 398.95 kg ha-1, respectively. Higher significant production was found in case of GIFT monoculture in T1 than that of other treatments. Highest net return was obtained from T1 while lowest net return from rice monoculture crop farming in T4. So, rice fish farming was economically more rewarding than the rice mono-crop farming. Besides, GIFT monoculture plays a significant production potential for coastal paddy fields.
  S. Rahman , P.K. Sarker , S.U. Ahmed , M. Rafiquzzaman and S.M. Ferdous
  A study was carried out during the Aman season (September-Dcember) in the south-west coastal paddy fields of Bangladesh to understand the culture suitability and production potential of two exotic fish species, namely Puntius gonionotus and Cyprinus carpio in rice fish integrated culture system. Twelve paddy plots with size ranges from 1300-27000m2 were stocked with fish at a density of 4930 /ha for mono & mixed culture (50+50%). After 50 days of rearing production rate of fish from monoculture of Puntius gonionotus (T1), mixed culture of Puntius gonionotus1 and Cyprinus carpio (T2) and monculture culture of Cyprinus carpio (T3) was found 280.12, 330.40 (119.64+210.76 kg) and 279.78 kg ha-1, respectively. No significant variation in fish production was observed between T1 and T3. But compare to other treatments significant higher production of fish was obtained from T2. However, for rice production a significant lower production (3.14 ton h-1) was obtained for T3 compare to other two treatments, while higher rate of rice production (3.85ton/h) was recorded for T1. For control plot (T4) the production rate of rice was 3.40 ton h-1. In the study, no negative correlation was found for the integration of fish with rice culture.
  S.U. Ahmed , M.A.Rahman , M.N. Islam , M. Kamal and S. Awal
  An on-farm study was undertaken to investigate the possibility of Artemia culture with salt in the traditional solar salt beds of Bangladesh and to find out the impact of various fertilization treatments on the production performance of Artemia (cysts and biomass) and salt through integrated approach. Four treatments in two consecutive years of experiment like, T1 and T2 ( in the first year), T3 and T4 (in the second year) was applied for this integrated culture system. Treatments were comprised of application of urea and triple super phosphate (TSP) and dried and powdered chicken manure at different doses. Study reveals that modified solar salt beds of Bangladesh having suitable water quality can be successfully utilized for salt Artemia production in the winter months. A significant higher production of Artemia cysts (P=0.0015) and biomass (P=0.0136) was found for treatments T3 (15.23 kg/ha DW) and T3 (196.10 kg/ha WW) respectively. No effect of Artemia - salt integration system was observed on the quantity of salt production.
  M.S.K. Sarker , S.U. Ahmed , S.D.Chowdhury , M. A. Hamid and M. M. Rahman
  Three hundred commercial broiler chicks of three different strains ( Arbor Acres, ISA Vedette and Hybro) each of 100 were reared from day-old to 6 weeks of age to compare their performance characteristics under Bangladesh condition in winter. Body weight gain and feed consumption up to 6 weeks of age were significantly higher in ISA Vedette than in Arbor Acres and Hybro. There was no significant difference between Arbor Acres and Hybro with respect to these variables. Survivability and feed efficiency among the strains were non-significant, although Arbor Acres showed slightly higher survivability than Hybro and ISA Vedette. Despite a slightly higher livability in Arbor Acres, it may be concluded that ISA Vedette may perform the best in winter than in Hybro and Arbor Acres. The later two strains may also be recommended for commercial boiler production in winter, but priority may be given to ISA Vedette strain.
  K.U. Ahmed , M.M. Rahman , M.Z. Alam and S.U. Ahmed
  A survey on farmer’s pest control methods and direct yield loss assessment of country bean (Dolichos lablab) was done during September 2000 to February 2001 in North Edilpur and South Mohadebpur villages of Sitakundu under Chittagong district. Results revealed that farmers used Fanfan, Nogos, Ripcord, Malathion, Roxion and Sumithion as chemical methods and applying ash and handpicking of insect pests as non-chemical method to control insect pests. The frequency of insecticide application during flowering stage to harvest was 9 to 15 with waiting period of only 3 to 20 days and 6 to 12 with waiting period of 3 to 25 days in North Edilpur and South Mohadebpur, respectively. The pod infestation by pod borer and aphids varied from 2.29 to 5.12% and from 2.83 to7.16% in North Edilpur and South Mohadebpur, respectively. Insect pests thus caused direct yield loss of 60.38-200.69 kg ha-1 in North Edilpur and 92.63-345.80 kg ha-1 in South Mohadebpur.
 
 
 
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