Bangladesh Journal of Zoology最新文献_第3页

Parasitic Contamination of Street Food Samples From School-Based Food Vendors of Dhaka City, Bangladesh 孟加拉国达卡市校内食品摊贩提供的街头食品样本的寄生虫污染情况

Bangladesh Journal of Zoology Pub Date : 2023-12-31 DOI: 10.3329/bjz.v51i2.70781

Priyanka Barua, Krishna Sukonya Banik, Sharmila Saha, Sharmin Musa

{"title":"Parasitic Contamination of Street Food Samples From School-Based Food Vendors of Dhaka City, Bangladesh","authors":"Priyanka Barua, Krishna Sukonya Banik, Sharmila Saha, Sharmin Musa","doi":"10.3329/bjz.v51i2.70781","DOIUrl":"https://doi.org/10.3329/bjz.v51i2.70781","url":null,"abstract":"Street food is an old notion that arose from the need of quick access of light food to satisfy hunger. With the mention of street food in Bangladesh, a picture is visualized which includes open stalls with uncovered food, unawareness of vendors about hygienic practices, lack of safe source of water for cleaning and preparing food, increasing pollution in surrounding environment leading to infestation with various parasites and causing diarrhoeal diseases in people. The aim of the present study was to determine the prevalence of parasites in school-based street foods in Dhaka city. A total of 200 food samples were examined containing three representative types of street foods: tamarind water of snacks (79 samples), sliced fruits (71 samples) and fruit juices (50 samples) using Formal-ether concentration technique. Among them, 164 (82%) samples were contaminated with Entamoeba histolytica, Blastocystis hominis, Cystoisospora belli, Diphyllobothrium latum, Hymenolepis diminuta, Hymenolepis nana, Ascaris lumbricoides, Enterobius vermicularis, Trichuris trichiura and Ancylostoma duodenale. C. belli was the most prevalent (38%), followed by A. lumbricoides (33%) and B. hominis (33%). While comparing the parasite prevalence in three types of street foods, the highest prevalence was observed for C. belli (21.5% in tamarind water of snacks, 6.5% in sliced fruits and 10% in fruit juices) followed by A. lumbricoides, B. hominis and D. latum. There were significant associations (p<0.05) among the different food types with B. hominis, C. belli, D. latum and A. lumbricoides positive samples. The study implicates that parasitic contamination of school-based street foods is alarming and it is urgent to take necessary steps to ensure the food safety. Bangladesh J. Zool. 51(2): 217-229, 2023","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139132372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Morphological Patterns of the Long Limb Bones in the Lesser Bandicoot Rat, Bandicota Bengalensis (Rodentia: Muridae) 小班氏鼠（啮齿目：鼠科）长肢骨的形态模式

Bangladesh Journal of Zoology Pub Date : 2023-12-31 DOI: 10.3329/bjz.v51i2.70778

Antara Das, Pritom Roy, Jadab Kumar Biswas

{"title":"Morphological Patterns of the Long Limb Bones in the Lesser Bandicoot Rat, Bandicota Bengalensis (Rodentia: Muridae)","authors":"Antara Das, Pritom Roy, Jadab Kumar Biswas","doi":"10.3329/bjz.v51i2.70778","DOIUrl":"https://doi.org/10.3329/bjz.v51i2.70778","url":null,"abstract":"We examined the morphological patterns of long limb bones in the Lesser Bandicoot rat (Bandicota bengalensis) using univariate, bivariate and multivariate statistical analyses. A total of 18 morphometric measurements were taken using 30 adult specimens (11 males and 19 females) of B. bengalensis. The univariate analysis revealed non-significant right-left difference in the longest limb bones. Therefore, right side limb bones were used for further analyses. For most of the limb bone measurements, the mean values of the males were slightly larger than that of the females. However, the coefficient of variation did not differ significantly between the sexes. Most measurements of the fore limb and hind limb bones were significantly correlated with the length of respective bones. Allometric analysis exhibited isometry for many of the variables of humerus, ulna, femur, and tibia against the length of respective bones. These trends were also implied by the principal component analysis, as high factor loadings were observed for 80% and 75% variables of the forelimb and hindlimb, respectively. The epicondylar regions of the stylopodial bones (humerus and femur) and the width of radius showed non-significant correlation and/or negative allometry. Finally, our results suggest slightly male-biased sexual size dimorphism in the long limb bones and the growth patterns of the bone parts are greatly variable might be linked to the individual bone functions. Bangladesh J. Zool. 51(2): 191-203, 2023","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139131523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Unveiling the Diverse Mammalian Species of a Tropical Rainforest in Northeast Bangladesh 揭开孟加拉国东北部热带雨林哺乳动物物种多样性的神秘面纱

Bangladesh Journal of Zoology Pub Date : 2023-12-31 DOI: 10.3329/bjz.v51i2.70773

Ameer Hamza, Md Aminur Rahman, Md Khurshed Alam, Md Kamal Hossain, Md Rezaul Karim Chowdhury, M. A. Aziz

{"title":"Unveiling the Diverse Mammalian Species of a Tropical Rainforest in Northeast Bangladesh","authors":"Ameer Hamza, Md Aminur Rahman, Md Khurshed Alam, Md Kamal Hossain, Md Rezaul Karim Chowdhury, M. A. Aziz","doi":"10.3329/bjz.v51i2.70773","DOIUrl":"https://doi.org/10.3329/bjz.v51i2.70773","url":null,"abstract":"Tropical rainforest supports an incredible diversity of mammalian species. The forest patches of northeast Bangladesh are considered hotspots for a range of threatened mammals. However, the transboundary Lathitila reserve forest in Moulvibazar district of northeast Bangladesh remained largely unexplored. We assessed the diversity of medium- and small-sized mammals using camera-trapping, and distance sampling, which was supplemented by sign survey and interviews. We recorded a total of 38 species of mammals belonging to 9 orders and 22 families. The Carnivora (34%) contained the highest number of mammals followed by Rodentia (21%), Primates (18%), Chiroptera (10%), and Artiodactyla (5%). Thirty seven percent of the recorded species were rare, followed by very common (26%), occasional (24%) and common (13%). Of these, 45% were categorized as threatened in the updated national Red List of IUCN Bangladesh. The remarkable species that we recorded are the Critically Endangered Asian elephant (Elephas maximus), Western hoolock gibbon (Hoolock hoolock), Chinese pangolin (Manis pentadactyla), Phayre’s leaf monkey (Trachypithecus phayrei), Northern pig-tailed macaque (Macaca leonina), and Bengal slow loris (Nycticebus bengalensis). The Endangered Fishing cat (Prionailurus viverrinus), and Asian small-clawed otter (Aonyx cinerea) were also recorded. The principal threats to the Lathitila forest are the habitat degradation, habitat fragmentation, human disturbance, illegal wood extraction, and wildlife poaching. This study highlights the conservation importance of this least-known forest, thereby protection measures are urgently needed to conserve its diverse mammalian fauna. Bangladesh J. Zool. 51(2): 135-154, 2023","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139133615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Icthyofaunal Diversity in Jagannath University New Campus Area, Keraniganj, Dhaka, Bangladesh 孟加拉国达卡 Keraniganj Jagannath 大学新校区的底栖生物多样性

Bangladesh Journal of Zoology Pub Date : 2023-12-31 DOI: 10.3329/bjz.v51i2.70776

Md Asaduzzaman, Durjoy Raha, Md Sakhawat Hossain, Md. Samrat Akbar, Sajib Biswas, G. Latifa

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Animals and Ethics: How Much Do We Care? 动物与伦理：我们有多在乎？

Bangladesh Journal of Zoology Pub Date : 2023-12-31 DOI: 10.3329/bjz.v51i2.70765

Md. Niamul Naser

引用次数: 0

Comparative Diurnal Activity Patterns of Merops Leschenaulti and Merops Orientalis at Chittagong University Campus, Bangladesh 孟加拉国吉大港大学校园里的 Merops Leschenaulti 和 Merops Orientalis 的昼间活动模式比较

Bangladesh Journal of Zoology Pub Date : 2023-12-31 DOI: 10.3329/bjz.v51i2.70777

Tanzina Alam, Md Mizanur Rahman

{"title":"Comparative Diurnal Activity Patterns of Merops Leschenaulti and Merops Orientalis at Chittagong University Campus, Bangladesh","authors":"Tanzina Alam, Md Mizanur Rahman","doi":"10.3329/bjz.v51i2.70777","DOIUrl":"https://doi.org/10.3329/bjz.v51i2.70777","url":null,"abstract":"A study was conducted on the diurnal activity patterns of chestnut-headed bee-eater (Merops leschenaulti) and green bee-eater (Merops orientalis) at Chittagong University Campus, Bangladesh in the year 2015. Six major activities (perching, flying, calling, feeding, diving, and preening) were recorded for both species during the study period. The two bee-eater species were observed to spend their maximum (M. leschenaulti: 37.63%; M. orientalis: 35.95%) time in perching, whereas the minimum time spent by M. leschenaulti was observed in diving (1.76%) and by M. orientalis was in feeding (2.17%). They were more active during 15:00 - 17:00 h (M. leschenaulti: 27.34%; M. orientalis: 27.23%) than other diurnal time blocks. Two species spent their highest (M. leschenaulti: 14.71%; M. orientalis: 14.00%) time performing different activities in June and the lowest (M. leschenaulti: 2.71%; M. orientalis: 3.46%) in January. Both bee-eaters were mostly (M. leschenaulti: 56.58%; M. orientalis: 53.07%) active in monsoon than in other seasons. The similar activity patterns between two bee-eater species could be influenced by similar lifestyles associated with their close taxonomic relationship. A number of ecological factors, such as temperature, humidity and precipitation could influence the daily, monthly and seasonal variations in activities. Bangladesh J. Zool. 51(2): 175-190, 2023","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139131785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Three New Records of Microleafhopper Genus Empoasca Walsh 1862 (Hemiptera: Cicadellidae: Typhlocybinae) From Bangladesh 标题孟加拉国小叶蝉属三新记录1862(半翅目:蝉科:恙螨科)

Bangladesh Journal of Zoology Pub Date : 2023-09-18 DOI: 10.3329/bjz.v51i1.68655

Md Imran Hossain, Md Shamim Hossain, Md Ruhul Amin, Emrul Kayesh, Sang Jae Suh

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Epidemiological Features and Clinical Manifestations of Cutaneous Leishmaniasis: An Emerging Health Risk in Hambantota, Sri Lanka 皮肤利什曼病的流行病学特征和临床表现:斯里兰卡汉班托塔一种新出现的健康风险

Bangladesh Journal of Zoology Pub Date : 2023-09-18 DOI: 10.3329/bjz.v51i1.68657

KAM Sudarshani, T Eswaramohan, A Murugananthan, HCE Wegiriya, VNH De Silva, V Somaratna

{"title":"Epidemiological Features and Clinical Manifestations of Cutaneous Leishmaniasis: An Emerging Health Risk in Hambantota, Sri Lanka","authors":"KAM Sudarshani, T Eswaramohan, A Murugananthan, HCE Wegiriya, VNH De Silva, V Somaratna","doi":"10.3329/bjz.v51i1.68657","DOIUrl":"https://doi.org/10.3329/bjz.v51i1.68657","url":null,"abstract":"Cutaneous leishmaniasis (CL) is an established disease in Sri Lanka. Present study was designed to investigate the epidemiological features, clinical manifestations and the relationship between CL cases and rainfall in Hambantota district, Sri Lanka from March, 2014 to December, 2015. CL suspected patients who presented to Tangalle and Hambantota hospitals during this period were included in the study. After conducting a clinical examination, a descriptive study was carried out using a questionnaire. Slit-skin smears were taken, stained with Giemsa and examined under a light microscope to identify Leishmania amastigotes. Results showed that the highest CL cases were reported from Tangalle District Secretory Division (DSD) out of 12 DSDs in Hambantota district (P<0.05). Majority of patients were >50 years old. Males were more infected than females. Higher number of CL patients were students (χ2 (10) = 6.41, P=0.781). Most of the patients had single lesion on arms, legs and faces/cheeks. Size of the most lesions was >2mm -<1cm and the duration of the most lesions were <06 months. The common clinical characteristics of lesions were erythematous and dry. Further, findings revealed that the higher number of CL cases were reported in March, May, August, October in 2014 and January to March in 2015 in which the study area had received higher amount of rainfall. Findings of the present study showed that the CL incidences and its distribution within Hambantota district had increased. It is essential to consider CL as a public health problem in Hambantota district. Bangladesh J. Zool. 51(1): 71-85, 2023","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135202498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Larvicidal effect of Bishkatali (Polygonum hydropiper) leaf extract against Aedes aegypti (Diptera: Culicidae) larvae 比什凯塔叶提取物对埃及伊蚊(双翅目:库蚊科)幼虫的杀虫效果

Bangladesh Journal of Zoology Pub Date : 2023-09-18 DOI: 10.3329/bjz.v51i1.68661

Md Mahamudul Hasan, Khandaker Noor E Jannat

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Cytogenetic study of pathogenomics of Aspergillus niger on the freshwater host fish Oriochromis niloticus 黑曲霉在淡水寄主尼罗鱼身上的细胞遗传学研究

Bangladesh Journal of Zoology Pub Date : 2023-09-18 DOI: 10.3329/bjz.v51i1.68660

Subarna Ghosh, Probir Kumar Bandyopadhyay

{"title":"Cytogenetic study of pathogenomics of Aspergillus niger on the freshwater host fish Oriochromis niloticus","authors":"Subarna Ghosh, Probir Kumar Bandyopadhyay","doi":"10.3329/bjz.v51i1.68660","DOIUrl":"https://doi.org/10.3329/bjz.v51i1.68660","url":null,"abstract":"Infected fresh water Tilapia Oreochromis niloticus, were brought alive from Canning fisheries and aquatic resource, Canning, India to parasitology laboratory, Department of Zoology for pathogenic examination. Macroscopic production of infection observed and the specimen was isolated and characterized on the basis of morphological and molecular analysis. The species was identified as Aspergillus niger. The effect of this pathogenic fungus on host physiology was observed by monitoring changes in biochemical, histological parameters. Native polyacrylamide gel electrophoresis have been used to analyze malate dehydrogenase (MDH), acid phosphatase (Acph) and peroxidase (Px) isoenzymes in different tissues (liver, kidney, muscle and heart) of the host fish in order to study the tissue specificity of these isoenzymes. The percentage amount of MDH in general varied significantly between muscle and different studied tissues. Peroxidase isoenzyme was recorded in liver and heart only with significant increase in liver. The cumulative mortalities of the intraperitoneal infection increased along with the sporangiospore concentrations; the highest mortality observed was 70% with108 CFU as compared to the control. Bangladesh J. Zool. 51(1): 99-117, 2023","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135202499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0