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Articles by Abdus Samad
Total Records ( 2 ) for Abdus Samad
  Sarower-E- Mahfuj , Shaid-ur- Rahman and Abdus Samad
  Background and Objective: Despite the status of Lepidocephalichthys guntea stocks are regarding as a least concern species in Bangladeshi freshwaters but indiscriminate fishing and human made anthropogenic activities will be led more vulnerable if such kinds of activities are frequently practiced in future. The present study was aimed to describe the stock structure of peppered loach, L. guntea on the bases of landmark-based truss morphometric analysis. Materials and Methods: Wild fish samples were collected from 2 rivers viz. Bhairab river, Jashore (BRJ) (n = 21); Nabaganga river, Jhenaidah (NRJ) (n = 49) and 2 natural water bodies called as beel viz. Chalan beel, Pabna (CBP) (n = 45) and Dhakuria beel, Jashore (DBJ) (n = 20) in Bangladesh. Then the samples were used to capture in digital images and subsequently 16 general morphometrics and 23 truss distances were measured by using tpsDig2v2.1 software. Then the morphometrics data and truss measurements were subjected to univariate statistics of variance (ANOVA) and discriminant function analysis (DFA) by using SPSS 21 software version. Results: In univariate statistics conferred that all measurements including general morphometrics and truss distances were significantly different among samples in varying degrees and in DFA showed that the first discriminant function (DF) accounted for 56.9%, the second DF accounted for 29.1% and the third DF accounted for 14%, respectively among group variability. Plotting DFs revealed that the stocks were clearly separated from each other in the discriminant space with virtually overlapping in varying degrees. Two main clusters were formed among four stocks based on the rescaled distance cluster combine. The NRJ formed a single cluster and the CBP and DBJ aggregately formed another two separate clusters. Conclusion: These results are suggested that the presence of different stocks of L. guntea from 4 freshwaters. The baseline information of the study will be helped in further ex-situ conservation, breeding as well as protect them from extinction.
  Uzma Asghar , Noor-us- Saba , Abdus Samad and Ali Abbas Qazilbash
  The study was designed to determine the incidence of Salmonella and Shigella spp. in blood and stool samples of patients. A total of 150, samples of blood (110) and stool (40) were collected from patients, reporting at NIH (National Institute Health) and six Salmonella and two Shigella strains were identified by colony identification and biochemical tests and serotyping. Of the 6 Salmonella isolates; 2 were of S. typhi, 1 of S. paratyphi A, 1 of S. paratyphi B and 2 of other Salmonella spp. The 2 Shigella strains from stool samples were S. flexneri (Poly B serotype). Salmonella isolates were found to be susceptible to gentamicin, ofloxacin, cefotaxime, amikacin, tobramycin, cefaclor, while resistant to ampicillin, cefamendole, chloramphenicol, gentamicin and cefuroxime. Shigella strains showed resistance to vibramycin, ampicillin, tetracycline and sensitivity against nalidixic acid, norfloxacin, chloramphenicol, amikacin, and aztreonam. Despite the fact that the overall prevalence of Salmonella and Shigella reported in this study was low, there is sufficient evidences to indicate that better hygiene and water treatment and management would even further reduce the incidence of these infections.
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