Dept. of Microbiology and Parasitology

PREVALENCE OF CANINE TICK-BORNE PROTOZOA ASSOCIATED WITH HEMATOLOGY IN DHAKA CITY

2024-02-04T04:40:53Z

PREVALENCE OF CANINE TICK-BORNE PROTOZOA ASSOCIATED WITH HEMATOLOGY IN DHAKA CITY KHATUN, MOST. AKLIMA Dogs, being companion animals serve a variety of economic, social, and cultural purposes. Among the diseases of dogs, tick-borne protozoa are drawing attention globally for both human and animals. The aim of this study was to observe the prevalence of tick-borne protozoan infections as well as some selective hematological parameters of stray dogs in Dhaka city. A total number of 160 dogs from various places in the study area were selected randomly and examined for both tick and protozoan infection. Only one species of hard tick, Rhipicephalus sanguineus was identified where 49 (30.62%) among the study population were found to be infested with this tick. There were differences in tick burdens in two seasons with higher infestation levels in Summer (37.50%) followed by Winter (26.92%). Ticks ranging from 1-16 were removed from dogs where most of the ticks were collected from the neck and chest region (P <0.001). On the other hand, examinations of blood smear confirmed three protozoan species (Babesia canis, Babesia gibsoni, and Hepatozoon spp.) comprising 23.13% of the overall prevalence. Among the protozoan species, B. canis (11.88%) was the most prevalent protozoa. Subsequently, only 10.81% of the infected samples showed multiple infections. In both cases, females were more infected than males. Among the hematological parameters, the RBC counts, Hemoglobin, and PCV of all infected dogs were significantly lower (P <0.001) compared to the healthy group. Moreover, the eosinophil of the infected groups showed higher values (11.00 % and 12.70% for protozoa and ticks, respectively) than the normal range indicating parasitic infections. Therefore, these results suggest the necessity of frequent blood examinations to enhance animals’ welfare and disease prevention. 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 PARASITOLOGY

PREVALENCE OF BLOOD PROTOZOANS OF MURINE RODENTS IN DHAKA CITY, BANGLADESH

2023-08-22T09:03:35Z

PREVALENCE OF BLOOD PROTOZOANS OF MURINE RODENTS IN DHAKA CITY, BANGLADESH DAS, NITOL CHANDRA Rodents are small mammals which are responsible for the transmission of various deadly pathogens with zoonotic significance. Blood borne protozoans play a crucial role in this regards. The present study was performed to determine the prevalence of blood protozoan parasites of murine rodents in Dhaka city, Bangladesh. A total of 80 rodents with four rodent species were captured, namely, Rattus norvegicus (n=28), Rattus rattus (n=14), Bandicota bengalensis (n=30) and Mus musculus (n=8). The rodents were live captured by using traps from stationary/grocery shops (n=25), local rent houses (n=20), houses from slum areas (n=15) and fish markets (n=20). The overall prevalence of this study was 50%. The highest infection rate was found in R. norvegicus (57.14%) followed by B. bengalensis (53.33%), M. musculus (37.5%) and R. rattus (35.71%). Among the different areas, the highest prevalence was recorded in slum areas (66.67%) followed by fish markets (50%), stationary/grocery shops (48%), and local rent houses (40%). Five blood protozoa detected from the rodents which were Plasmodium spp. (31.25%), Anaplasma marginale (21.25%), Anaplasma centrale (17.5%), Babesia spp. (10%), and Trypanosoma spp. (3.75%). The ratio of single and mixed infection was equal (50%). Among the observed blood protozoa, Trypanosoma spp. and Babesia spp. have a great public health significance. Therefore, proper attention is recommended to prevent rodent born protozoal zoonosis through integrated control program. A Thesis Submitted to Department of Microbiology and Parasitology Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka-1207 Requirements for the degree of MASTERS OF SCIENCE (MS) IN PARASITOLOGY

PREVALENCE AND BURDEN OF GASTROINTESTINAL PARASITES OF GAME BIRDS IN DHAKA AND CUMILLA CITY, BANGLADESH

2023-08-22T09:01:48Z

PREVALENCE AND BURDEN OF GASTROINTESTINAL PARASITES OF GAME BIRDS IN DHAKA AND CUMILLA CITY, BANGLADESH BASHAR, MUHAMMAD SAIFUL The gastro-intestinal parasites have always been a problem causing severe parasitism in game birds where the herds are kept in small-range of area. This present study was carried out to investigate the gastro intestinal parasites in game birds in Dhaka and Cumilla city of Bangladesh. The samples were examined by routine coproscopical methods for the presence of different parasites and oocysts. The overall prevalence of intestinal parasitic infection was 42% in Bangladesh. These were documented different gastrointestinal parasites viz, Ascaridia galli, Heterakis gallinarum, Capillaria sp., Balantidium coli, Eimeria spp., Giardia sp. in Bangladesh. The highest intestinal parasitic infection (60%) was observed in the fecal sample collected from Mirpur and Cumilla, followed by Shatfeet (40%), Katabon (28%) and Mohammadpur (20%) whereas, Ascaridia galli (25%) Heterakis spp. (8%), Capillaria spp. (8%), Balantidium coli (7%), Eimeria spp. (8%) and Giardia spp. (2%) were observed. In this investigation, the prevalence of Ascaridia galli was highest in pigeon (38.71%) followed by parrot (33.33%), dove (30.77%), quail (25.00%), cockatoo (14.28%), guinea fowl (14.28%) and budgerigar (13.33%) respectively. The prevalence of Heterakis gallinarum was 16.13%, 15.38% and 14.28% in pigeon, dove and cockatoo respectively. The prevalence of single infection (23%) was higher than the multiple infection (19%) of helminthes. Alongside, the prevalence of helminthic infection (29.0%) was found relatively higher than protozoan infection (24.0%). Therefore, the necessary steps should be undertaken to control the parasitic infection of pet birds. A Thesis Submitted to the Department of Microbiology and Parasitology Sher-e-Bangla Agricultural University, Dhaka In Partial Fulfillment of the Requirements for the degree of MASTER OF SCIENCE (M.S.) IN PARASITOLOGY

POPULATION DYNAMICS AND MORPHOLOGICAL IDENTIFICATION OF LICE IN COMMERCIAL LAYER CHICKEN

2022-12-20T10:46:47Z

POPULATION DYNAMICS AND MORPHOLOGICAL IDENTIFICATION OF LICE IN COMMERCIAL LAYER CHICKEN ISLAM, SUMAIYA Poultry is a promising sector in Bangladesh that is growing at a rapid pace and has grown to become the most important and advanced segment of the livestock sector in the country. Commercial poultry is infected with a variety of parasites. As a result, the goal of this research was to look into the population dynamics and morphological identification of lice in commercial poultry farms of Kishoreganj, Gazipur, Mymensingh, Tangail and Narsingdi. From November 2020 to April 2021, a total of 245 layer chickens were examined for lice infestation. All the lice were identified microscopically at the Laboratory of Microbiology and Parasitology. A total of 149 chickens (60.81 %) were infested with lice out of 245 evaluated. During the study, four lice species were identified: Menacanthus stramineus, Menopon gallinae from sub-order Amblycera and Gnoiocotes gallinae, Lipeurus caponis from sub-order Ischinocera. Among them, M. stramineus was the most prevalent species (60.78%) detected in breast and thigh, followed by M. gallinae (49.02%) in body feathers, L. caponis (34.90%) in wing feather and G. gallinae (15.03%) in fluff. The highest prevalence of lice was found in Gazipur (83.93%) followed by Mymensingh (80.65%), Tangail (72.73%), Narsingdi (66.67%). No lice were detected in Kishoreganj. This research strongly suggests that poultry lice are a major problem in commercial poultry chicken. It is indeed necessary to develop an effective control measure to improve output of commercial poultry in Bangladesh. A Thesis Submitted to Department of Microbiology and Parasitology Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka-1207 Requirements for the degree of MASTER OF SCIENCE (MS) IN PARASITOLOGY Semester: July-December/2021