Browsing by Author "Mahfujur Rahman, Mohammad"

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    A Clinical report on diagnosis & Occurrence of Peste des Petits Ruminants (PPR) in relation to Breed, Sex, Age, duration of Illness and their treatment response in case of PPR infected goats in Boalkhali
    (Chattogram Veterinary and Animal Sciences University Khulshi, Chattogram-4225, Bangladesh, 2009-04) Mahfujur Rahman, Mohammad
    A study was conducted with Peste Des Petits Ruminants(PPR) affected goats in Boalkhali veterinary hospital to measure, the level of PPR occurrence in terms of breed, sex, age to know the survival number of animals after treatment. To look at the response of symptomatic treatment during the two months study period. The Black Bengal goat was alarmingly affected by PPR that was 69.5%than cross breed. Less than one year old of age of goats were more susceptible (62.5%) than that other categories. The response of treatment was depended on the duration of illness where earlier coming patients showed a good response. Results showed that 61%cure rate after treatment.
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    Designing of radiation shielding composites prepared from indigenous raw materials
    (Department of Chemistry, BUET, 2022-05-01) Mahfujur Rahman, Mohammad; Firoz, Dr. Md. Shakhawat Hossain
    The present study emphasizes to analyze the ionizing radiation shielding effectivenessof mono-energetic photon of X-rays (65 keV to164 keV) and relatively high energy ɣ-rays (137Cs; 661.5 keV to60Co; 1250 keV) for the determination of shielding design of radiation facilities. Composites were fabricated by indigenous low-cost materials such as raw beach sand (RBS) of Cox’s Bazar, Magnetite-Ilmenite (MI), Inland Sand (IS), Dyeing Sludge (DS) as filler and Madupur clay as binder and base matrix. The X-ray and γ-ray attenuation efficacies of the prepared composites and ordinary concrete (OC) were characterized and assessed using broad beam transmission geometry, GM detector, and stated in terms of linear attenuation coefficients (LAC), mass attenuation coefficients (MAC), Half Value Layers (HVL) and Effective Dose Rates (EDR). The key elements of these prospective samples were measured to analyze the presence of heavy elementsby Neutron Activation Analysis (NAA) method using the TRIGA Mark-II Research Reactor.The attenuation efficiencies were also explained with the help of the entire internal structural morphology of the composites by thermal neutron radiography technique. The LAC values of MI composite and RBS composite decrease from 1.6443cm-1 to 0.1459cm-1 and 1.4026cm-1 to 0.1377cm-1for 65 keV to 1250 keV respectively, which reveals the higher level of attenuation among the studied composites. The LAC data of ordinary concrete has exhibited a moderate level of attenuation (0.7189 cm-1to 0.1314 cm-1 for 65 keV to 1250 keV). The ISand DS composite showed the poor attenuation capacity, the LAC falls down from 0.5150 cm-1 to 0.0974 cm-1and 0.5133 cm-10.0949 cm-1for 65 keV to 1250 keV, respectively. The MAC & EDR data with the increasing photon energy follows a similar pattern as LAC data.The sequences of HVL of the composites are MI
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    FORMULATION OF LEAST COST PROBIOTICS FOR POULTRY
    (Chattogram Veterinary & Animal Sciences University, Khulshi-Chattogram, 2009-04) Mahfujur Rahman, Mohammad
    An experiment was undertaken for testing the efficacy of different probiotics.27quails of 34 days old were used in this experiment, duration was from 5th December, 2008 to 4th February, 2009, at Chittagong. The experiment designed by three treatments group and each treatment having three replications. In each replication, there were 3 birds. Same ration, amount, environment was provided to them. But different probiotic was supplied to them. There was no probiotic used in T-1 groups, marketed probiotic (prosol) supplied to T-2groups, prepared probiotic supplied to T-3 groups. By these work I observed the efficacy of egg production on different probiotic.there was no significant difference among the treatment groups from 7th to 11th weeks but difference in 6th week.egg production started earlier and high at 6th week in prepared probiotic used group. So we can easily replace high cost marketed probiotic by low cost prepared probiotic.