http://localhost:8080/handle/123456789/2683 Sat, 18 Apr 2026 21:05:20 GMT 2026-04-18T21:05:20Z http://localhost:8080/handle/123456789/3191 ISOLATION, IDENTIFICATION & ANTIBIOGRAM PROFILING OF STAPHYLOCOCCUS AUREUS FROM FRESH COW MILK SAMPLE CHAKRABORTTY, TANAY Staphylococcus aureus is an important pathogen causing a wide spectrum of diseases in both humans & animals. S. aureus produces a variety of virulence factors that are liable for sub- clinical & persistent intra-mammary infections like mastitis. This research was suspected to isolation, identification & characterization of S. aureus causing bovine mastitis in cattle. The bacteria was isolated, identified & characterized by cultural, staining, morphological, & biochemical. The 12 isolates produced β hemolysis on 5% sheep blood agar & fermented on mannitol salt agar & aslo produced yellow colonies. In Gram staining, the organism found as gram positive, grapes like clusters formed by cocci. The isolates showed catalase & coagulase positive that confirmed as S. aureus. The antimicrobial susceptibility pattern of S. aureus isolates were investigated by disc diffusion method. In this study 42 fresh milk samples were obtained from three different points of Savar, Dhaka, Bangladesh like Savar Hat Area, Shimulia Hat Area & Bagbari Bazar Area & 12 samples yielded positive result for S. aureus, given an overall prevalence of 28.57%. The antibiotic susceptibility profile of the 12 S. aureus isolates revealed that the majority of the isolates were resistant against penicillin, erythromycin & amoxicillin. The isolates showed 100% resistant to penicillin & amoxicillin, while ciprofloxacin, oxicillin, cloxacillin & neomycin were found the most effective drug for the treatment of S. aureus. A Thesis Submitted to the Department of Microbiology & Parasitology Sher-e-Bangla Agricultural University, Dhaka- 1207 In partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE (MS) IN MICROBIOLOGY DEPARTMENT OF MICROBIOLOGY & PARASITOLOGY SEMESTER: JULY-DECEMBER/2019 SESSION: JULY-DECEMBER/2017 Sun, 01 Dec 2019 00:00:00 GMT http://localhost:8080/handle/123456789/3191 2019-12-01T00:00:00Z http://localhost:8080/handle/123456789/3190 PREVALANCE OF GASTROINTESTINAL HELMINTHS OF TURKEYS IN WET MARKETS OF DHAKA CITY NIPU, NUSRAT JAHAN Gastrointestinal nematodes constitute a major impediment to efficient poultry production, including turkeys and leading to substantial economic losses. Here, we studied the helminths of turkey from different market areas of Dhaka city in Bangladesh. The gastrointestinal helminths were investigated from a total 50 turkeys (Meleagris gallopavo). The samples were collected from Gonobissobiddaloi (30), Mohammadpur Town Hall Kacha Bazar (15) and Agargoan Bazar (5). The overall prevalence of helminth infection was 74%. The nematodes detected in turkeys were Heterakis gallinarum (62%) and Capillaria philippinensis (74%). Of the two helminth species, C. philippinensis is reported to have zoonotic potentialities. The farmers have been rearing the turkeys very close to the human habitat. Therefore, turkey farmers, meat sellers and consumers are at risk of being infected with C. philippinensis. To the best of our knowledge, the study on helminths in turkey is going to be reported for the first time in Bangladesh. Therefore, further proper attention should be paid for more comprehensive investigation with large samples to discover zoonotic helminth in Bangladesh. A Thesis Submitted to the department of Microbiology and Parasitology Sher-e-Bangla Agricultural University, Dhaka In Partial Fulfilment of the Requirements For the degree of MASTER OF SCIENCE (M.S) IN PARASITOLOGY SEMESTER: July-Dec/2019 Sun, 01 Dec 2019 00:00:00 GMT http://localhost:8080/handle/123456789/3190 2019-12-01T00:00:00Z http://localhost:8080/handle/123456789/3189 IDENTIFICATION AND CHARACTERIZATION OF Escherichia coli FROM DRESSED CHICKEN MEAT IN DHAKA BISWAS, AMIT KUMAR Poultry is a major fast growing source of meat in the recent world. The consumers want a contamination free, safe and hygienic meat, which is free from any type of hazardous organism. This study has been done to find out the prevalence of Escherichia coli in different markets. The markets were different live bird markets and supermarkets. Also this study indicates the difference of Escherichia coli prevalence between live bird markets and the supermarkets in Dhaka city, Bangladesh. Samples from different markets were analyzed to determine the pathogenic bacteria Escherichia coli. It was isolated from the dressed meat sample of chicken through conventional cultural method. The samples were collected from twelve markets. Seven of the markets were live bird markets and other five were supermarkets. The markets were indicated as M1, M2, M3 etc for advantage while sampling. The markets were Savar Hut (M1), Shemulia Bazar (M2), Bagbari Bazar (M3), Bihari Camp (M4), Krishi Market (M5), Gigatola Bazar (M6), Taltola Bazar (M7), and Supermarkets were (M8), (M9), (M12), (M11) & (M10). From each market three samples were collected (S1, S2, S3). Result of this study demonstrated that the prevalence of E. coli was more in live bird market than the supermarkets. The average CFU/ml in live bird markets was 1.17534 × 10 12 and the average CFU/ml of supermarkets was 3.37327 × 10 11 . The E. coli prevalence percentage of live bird markets was 80.95% and in supermarkets it was 46.67%. So the pathogenic organism in the consumed meat of this type is alarming. This study also concluded recommendations that the personnel hygiene is crucial in processing and handling of poultry and poultry products. A Thesis Submitted to the Department Of Microbiology and Parasitology, Sher-e-Bangla Agricultural University, Dhaka-1207, in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN MICROBIOLOGY DEPARTMENT OF MICROBIOLOGY AND PARASITOLOGY SEMESTER: JULY- DECEMBER, 2019 Sun, 01 Dec 2019 00:00:00 GMT http://localhost:8080/handle/123456789/3189 2019-12-01T00:00:00Z http://localhost:8080/handle/123456789/2592 Prevalence of Mites of Backyard Chicken in South-West Bangladesh FARAZI, MD. ABDULLAH In Bangladesh, chicken meat is an important source of protein for rural people. Chicken production also plays a vital role in the socio-economic development of the country. However, mite infestations are among the important hindrance in the development of this industry. Chicken mites suck blood and give irritation to the chicken. As a result, chicken become anaemic, emaciated and lose their production. A study was carried out on backyard chicken from January 2018 to December 2018 to determine the prevalence and identify the species of mites in South-West Bangladesh. Among 200 backyard chicken (37 male and 163 female), 173 (86.5%) were infested. Four mite species, including Dermanyssus gallinae (56.5%), Ornithonyssus sylviarum (15.5%), Ornithonyssus bursa (9%) and Knemidocoptes mutans (5.5%), were found in the backyard chicken. The high prevalence of mites in backyard chicken indicates that mite infestation is a common problem in South-West Bangladesh. Therefore, awareness should be made among the producers and adequate preventive measures should be taken to control mite infestation inorder to gain optimum chicken production. DEPARTMENT OF MICROBIOLOGY AND PARASITOLOGY SHER-E-BANGLA AGRICULTURAL UNIVERSITY DHAKA-1207 Tue, 01 Jan 2019 00:00:00 GMT http://localhost:8080/handle/123456789/2592 2019-01-01T00:00:00Z