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Articles by M.B. Rahman
Total Records ( 10 ) for M.B. Rahman
  S.M.L. Kabir , M.M. Rahman , M.B. Rahman , M.Z. Hosain , M.S.I. Akand and S.K. Das
  The present research was conducted on Hubbard Isa Starbro broilers to evaluate the dynamics of probiotics relating to balanced growth of intestinal flora and histological reactions and changes within the crop and cecal tissues. A total of eighty day-old broiler chicks were divided into four groups of equal numbers as group A (Probiotics fed group vaccinated), B (Probiotics fed group nonvaccinated), C (Conventional fed group vaccinated) and D (Conventional fed group nonvaccinated). Group 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 2 g probiotics (Protexin® Boost)/10 L drinking water upto 6th week of age. The effect of probiotics with regard to clearing bacterial infections and regulating intestinal flora was evaluated by determining the TVC and TLC of the crop and cecum samples of probiotics and conventional fed groups at the 2nd, 4th and 6th week of age. The result revealed competitive antagonism. The result of the study evidenced that probiotic organisms inhibited some nonbeneficial pathogens by occupying intestinal wall space. It has been demonstrated that broilers fed with probiotics had a tendency to display pronounced intestinal histological changes such as active impetus in cell mitosis and increased nuclear size of cells, than the controls. It is obviously found from this research work that probiotics supplementation promoted significant influence on intestinal microbial balance related with pronounced intestinal histological changes.
  M.A. Islam , M.A. Samad and M.B. Rahman
  The alum precipitated formalin killed fowl cholera vaccines (FCV) are locally produced from the Livestock Research Institute (LRI), Mohakhali, Dhaka and Bangladesh Agricultural University (BAU), Mymensingh which are being used to control fowl cholera in chickens and ducks in Bangladesh. Efficacy of these two vaccines has been evaluated mostly in chickens but reports on ducks are very limited. Four weeks old 50 Jinding breed of ducks were used to evaluate the efficacy and immune responses of fowl cholera vaccines during the period from October 2002 to March 2003. These 50 ducks were divided into three groups (A = 20, B = 20 & C = 10 ducks) and each duck of group A was inoculated with FCV (LRI) @ 0.5 ml subcutaneously at the age of 8 weeks, and each duck of group B received FCV (BAU) @ 1.0 ml intramuscularly at the age of 12 weeks as manufacturer instruction, whereas ducks of group C served as unvaccinated control. Each duck of group A and B was also injected booster dose after two weeks of primary vaccination with their respective FCV. Each duck of all the three groups (A, B and C) was challenged after two weeks of post-booster vaccination with 1.0 ml inoculum containing 5.4x106 CFU of virulent Pasteurella multocida intramuscularly. The results of challenged experiment revealed that one (5.0%) duck of group A, two (10.0%) ducks of group B died within 2 to 3 days of post-challenged, whereas 10 (100%) unvaccinated control ducks of group C died within 1 to 3 days of post-challenged. Therefore, the FCV® (LRI) conferred protection to 95% and FCV (BAU) conferred protection to 90% of vaccinated birds against challenged infection after two weeks of booster vaccination. The mean values of Total leukocytic count (TLC), Total serum protein (TSP) and Passive haemagglutination assay (PHA) antibody titre of ducks in both the groups A and B were found significantly (p < 0.01) increased at two weeks of post-primary and two weeks of post-booster vaccination, and also two weeks of post-challenged infection in comparison to the respective pre-vaccination values. These results indicate that the FCV of LRI induced comparatively higher TLC, TSP and PHA antibody titre than FCV of BAU in ducks. These results showed that the locally prepared fowl cholera vaccines induced sufficient cellular and humoral immune responses which resulted satisfactory level of protection against duck cholera and therefore both the locally prepared FCV could be recommended to control duck cholera under filed conditions in Bangladesh.
  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.
  M.B. Rahman , M.M. Rahman , M. Rahman , S.M.L. Kabir , K.H.M.N.H. Nazir and M.M. Amin
  Thirty day-old chicks of Cobb-100 breed with the history of vaccination of parent stock against Newcastle disease (ND) were equally divided into two groups such as group A and B. At 7 days of age of birds, group A was vaccinated with experimentally prepared V4HR-ND vaccine via eye drop @ 106.0EID50/bird to determine the efficacy of this vaccine while group B was kept as unvaccinated control. The birds were used for the study during the period from October 2003 to December 2003. Each bird of group A was boostered with same vaccine @ same dose at 24 days of age. Both the groups (A and B) were challenged after two weeks of post-booster vaccination with 0.25ml inoculum containing 105.0EID50 of virulent field isolates of ND virus intramuscularly. The results of challenge experiment revealed that six birds (40%) of group A succumbed within 3 to 4 days of post-challenge, whereas 15 (100%) unvaccinated control birds of group B showed clinical illness and ultimately died within 3 to 5 days. Thus, the experimental V4HR-ND vaccine conferred 60% protection of vaccinated birds against challenge infection. The mean values of Haemagglutination inhibition (HI) antibody titres of birds in group A were found to have significantly (P<0.01) increased at two weeks of post-booster vaccination. These results indicated that experimental V4HR-ND vaccine induced sufficient humoral immune response which gives satisfactory level of protection against ND.
  S.K. Sarkar , M.B. Rahman , M. Rahman , K.M.R. Amin , M.F.R. Khan and M.M. Rahman
  The sero-prevalence of Mycoplasma gallisepticum (MG) infection of chickens in selected Model Breeder Poultry Farms was determined during the period January to May, 2004. To conduct this study a total of 382 sera samples were collected. Rapid Serum Plate Agglutination (SPA) test was performed using commercial MG antigen (Nobilis® MG) to detect the presence of antibodies against MG. The over all sero-prevalence of MG infection was 58.90% in the study area. The highest prevalence (62.44 %) of MG infection was found in winter season followed by summer season (53.10%). The result further revealed that the infection was higher (59.94%) in female birds than in male birds (48.57%). It was also demonstrated that the infection was higher (62.80%) in Feni sadar than in Chhagoalnaiya thana (53.45%).
  M.A. Islam , M.A. Samad , M.B. Rahman , M.T. Hossain and S. Akter
  The duck plague vaccine (DPV) is locally produced from the Livestock Research Institute (LRI), Mohakhali, Dhaka which is used to control the duck plague viral disease in ducks in Bangladesh. Efficacy of this vaccine reports has no, so to say on ducks in Bangladesh. Three weeks old 50 Khaki Cambell Ducks were used to evaluate the induced of immune responses of duck plague vaccine during the period from February to April 2003. These 50 ducks were divided into three groups (A = 15, B = 15 and C = 5 ducks) and each duck of group A and group B were inoculated primarily with duck plague vaccine @ 1.0 ml. intramuscularly at the age of 4 weeks and whereas ducks of group C served as unvaccinated control. Then each duck of group A was also injected booster dose after 2 weeks of primary vaccination with same vaccine, dose and route. The mean value of TLC, TSP and PHA antibody titre of ducks of group A was found significantly (p < 0.1) increased at two weeks and four weeks of post-primary vaccination and two weeks and four weeks of post-booster vaccination in comparison to the pre-vaccination values. The mean value of TLC, TSP and PHA titre of ducks of group B was also found significantly increased (p < 0.1) at two, four, six and eight weeks of post-primary vaccination in comparison to the pre-vaccination values. These results indicate that booster vaccination of duck plague vaccine induced comparatively higher TLC, TSP and PHA antibody titre than single primary vaccination in ducks. The mean value of TLC, TSP and PHA in unvaccinated control group C was more or less nearer at the age of four weeks and 12 weeks in ducks. These results showed that the locally prepared duck plague vaccine induced sufficient both cellular and humoral immune responses with booster-vaccination than primary vaccination in ducks. Therefore, it could be recommended to booster dose of vaccination of duck plague vaccine to control duck plague under field condition in Bangladesh.
  A.J. Sikder , M.A. Islam , M.M. Rahman and M.B. Rahman
  The present study was undertaken to know the seroprevalence of Salmonella and Mycoplasma gallisepticum (MG) infection in six model breeder poultry farms (MBPFs) located at kalapara Upazilla under Patuakhali district, Bangladesh. A total of 364 sera samples were collected from chickens belonging to six MBPFs. All sera samples were examined by rapid serum plate agglutination (SPA) test using commercial Salmonella (SP) and MG antigens to determine the presence of Salmonella and MG specific antibodies in different age and sex of birds belonging to MBPFs. In addition to that prevalence of Salmonella and Mycoplasma infection in MBPFs during rainy and winter seasons were also recorded. The results of serological tests were analyzed statistically. The overall prevalence of Salmonella and Mycoplasma infection in six MBPFs were recorded as 23.46% and 46.88% respectively. Prevalence of salmonella was recorded highest in rainy season (25.00%) than the winter season (21.88). On the contrary, Mycoplasma infection was recorded highest in winter season (61.45%) than the rainy season (51.74%). Both Salmonella and Mycoplasma infections were recorded highest in female birds (24.10%) than the male birds (15.62%). The prevalence of MG infection decreased with the increase of age. MG infection recorded highest 71.42% at 18 weeks of age and lowest 50% at 22 weeks of age. On the other hand, the prevalence Salmonella infection was increased with the increase age. Salmonella infection was found highest 30.76% at 39 weeks of age and lowest 13.33% at 32 weeks of age. It was concluded from the present study that both Salmonella and MG infection were significantly present in all six MBPFs and SPA test could be used as a tool for quick detection of Salmonella and MG infection.
  K.M.R. Amin , M.B. Rahman , S.M.L. Kabir , S.K. Sarkar and M.S.I. Akand
  The study was carried out to investigate the serological epidemiology of brucellosis in cows of Mymensingh districts of Bangladesh. Out of 250 animals tested, 2% showed positive reaction. The higher prevalence of bovine brucellosis was recorded in pregnant cows (3.45%) than non-pregnant cows (1.23%). The age wise prevalence of brucellosis in cows older than 4 years of age were found to be more susceptible to infection. The prevalence of brucellosis in cows above four years of age was recorded 2.56% whereas, 1.10% positive cases were found in cows having less than 4 years of age. The prevalence of brucellosis in cows with repeat breeders, previous abortion and retention of placenta was recorded 1(1.64%), 3(12%) and 2(7.41%) respectively. The highest prevalence was recorded in cows with a history of previous abortion. The prevalence was higher in retention of placenta in comparison with repeat breeder cases.
  K.H.M.N.H. Nazir , M.B. Rahman , K.M. Nasiruddin , F. Akhtar , M.F.R. Khan and M.S. Islam
  The aim of the research was to find out the effective antibiotic(s) against Escherichia coli and to observe the relationship between the plasmids to the antibiotic resistant pattern found by antibiotic sensitivity tests. For these forty water samples were collected from different sources including river, pond, tap and drain for isolation and identification of pure E. coli. The overall recovery rate of E. coli from water samples was 45%. The highest recovery rate was found from drain water (70%). The pure cultures were subjected to observe the antibiotic resistant pattern by commonly used ten antibiotic disks. All the isolates were found resistant to Penicillin G (94.45%) but 50% isolates were resistant to Amoxicillin. The isolates were highly sensitive to other antibiotics as Ciprofloxacin (88.89%), Chloramphenicol (72.22%), Norfloxacillin (88.33%) and Tetracycline (61.11%). The isolates exhibited moderate sensitivity to Ampicillin (44.44%), Gentamicin (77.78%), Streptomycin (33.33%). Only 22.22, 27.78, 27.78, 16.67, 11.11 and 16.67% of the isolates were recorded to show moderate sensitivity to Amoxycillin, Tetracycline, Chloramphenicol, Cephradin, Ciprofloxacin and Norfloxacillin, respectively. Plasmid profile analysis of 18 isolates were done by 0.8% agarose gel electrophoresis. A total of 11 different plasmid bands of different size were observed by careful eye estimation with the comparison to reference marker. The size of the bands range from 2.4 to 40 kb and at best 5 plasmid bands were found. There was no plasmid in only one isolate. There was no relation found between the plasmid band pattern in agarose gel and antibiotic resistance of E. coli.
  M.F.R. Khan , M.B. Rahman , M.S.R. Khan , K.H.M.N.H. Nazir and M. Rahman
  Antibiogram study and plasmid profile analyses were conducted to find out the correlation of the recently isolated Salmonella organisms of Bangladesh. Antibiogram study revealed that the isolates were highly sensitive to Ciprofloxacin, Cephalexin and Kanamycin. In the plasmid profile analysis it was observed that out of 4 isolates of Mymensingh district (M1 to M4), 3 isolates showed 3 plasmid bands in each and 1 isolate showed 4 plasmid bands. The estimated size of the plasmid bands of M1, M2, M3 and M4 were (33.5, 24.50, 4.0, 3.0); (33.5, 3.0, 1.0); (33.5, 3.0, 1.0) and (5.0, 4.0, 1.8) kb, respectively. On the other hand among the isolates of Feni district (F1 to F9), 6 isolates (F4, F5, F6, F7, F8 and F9) showed 5 number of plasmid bands in each and the estimated plasmid band size were same (33.5, 5.0, 4.0, 2.0, 1.8). The plasmid bands of other 3 isolates (F1, F2 and F 3) were found to be different and the estimated size were recorded as 4 (33.5, 5.0, 1.6, 1.5); 3 (33.5, 1.6, 1.5) and 1 (0.7), respectively. Among the isolates of Dhaka district (D1 to D11); no plasmid band was found to be detected in 3 isolates (D2, D5 and D6). The number of plasmid bands of other isolates of D1, D3, D4, D7, D8, D9, D10 and D11 were 4 and the estimated size were determined as (33.5, 15.0, 2.0, 1.0); 5 (33.5, 15.0, 3.0, 2.0, 1.0); 5 (33.5, 5.0, 4.0, 1.8, 1.3); 3 (33.5, 3.0, 1.0); 3 (33.5, 3.0, 1.0); 1(33.5); 2 (33.5, 3.0) and 2 (33.5, 4.0) kb, respectively. All these isolates were tested for antibiotic sensitivity against 8 commonly used antibiotics belonging to different groups. From the antibiogram study it was revealed that all the isolates of Mymensingh and Dhaka district were 100% resistant to Cloxacillin and among the isolates of Feni district 100% were resistant to Erythromycin and Cloxacillin. Plasmid profile analysis of the isolated Salmonella organisms revealed that the isolates carrying multiple plasmids which might be the cause of various degree of antibiotic resistance.
 
 
 
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