Mahua Shahjadi, Md. Aminul Islam, Md Abdul Alim, A. Sultana, Mohammad Mustafizur Rahman, F. Zohora
A study was carried out to determine the effectiveness of newly synthesized chemical ‘4-[3-(4-biphenylyl)-1, 6-dihydro-6-iminopyridazin-1-yl] butyronitrile hydro bromide against beanaphid, Aphis craccivora, under six treatments: T1 (20 ppm), T2 (40 ppm), T3 (60 ppm), T4 (80 ppm), T5 (100 ppm), and untreated control T6. Aphid numbers was peaked in January and it was zero in February. The best efficacy of administered doses was found in the T3 and followed by T5, T4, and T2, respectively. The aphid abundance in different weeks (F= 1.89; p<0.05) and the treated doses (F= 3.19; p< 0.02) were significantly varied among the plants. The aphid population showed a positive correlation with temperature in the T3 (r = 0.48) and T5 (r = 0.33) and a negative correlation in T1 (r = -0.32), T2 (-0.24), and T4 (-0.20), and untreated control T6 (- 0.24). Whereas, aphids were positively correlated with humidity in T3 (r = 0.46), T4 (r = 0.40), and T5 (r = 0.18) and negatively correlated in T1 (r = -0.32), T2 (r = -0.53), T4 (r = -0.40), and untreated control T6 (r = -0.52). The treated doses T4 and T3 produced the most vigorous fruits, while T1 produced the lowest. Bangladesh J. Zool. 50 (2): 261-272, 2022
{"title":"Efficacy of newly Synthesized Pesticidal Chemical ‘4-[3-(4-Biphenyl)-1,6-Dihydro-6-Iminopyridazin-1-yl] Butyronitrile hydro Bromideon bean Aphid, Aphis craccivora Koch (Homoptera: aphididae)","authors":"Mahua Shahjadi, Md. Aminul Islam, Md Abdul Alim, A. Sultana, Mohammad Mustafizur Rahman, F. Zohora","doi":"10.3329/bjz.v50i2.62058","DOIUrl":"https://doi.org/10.3329/bjz.v50i2.62058","url":null,"abstract":"A study was carried out to determine the effectiveness of newly synthesized chemical ‘4-[3-(4-biphenylyl)-1, 6-dihydro-6-iminopyridazin-1-yl] butyronitrile hydro bromide against beanaphid, Aphis craccivora, under six treatments: T1 (20 ppm), T2 (40 ppm), T3 (60 ppm), T4 (80 ppm), T5 (100 ppm), and untreated control T6. Aphid numbers was peaked in January and it was zero in February. The best efficacy of administered doses was found in the T3 and followed by T5, T4, and T2, respectively. The aphid abundance in different weeks (F= 1.89; p<0.05) and the treated doses (F= 3.19; p< 0.02) were significantly varied among the plants. The aphid population showed a positive correlation with temperature in the T3 (r = 0.48) and T5 (r = 0.33) and a negative correlation in T1 (r = -0.32), T2 (-0.24), and T4 (-0.20), and untreated control T6 (- 0.24). Whereas, aphids were positively correlated with humidity in T3 (r = 0.46), T4 (r = 0.40), and T5 (r = 0.18) and negatively correlated in T1 (r = -0.32), T2 (r = -0.53), T4 (r = -0.40), and untreated control T6 (r = -0.52). The treated doses T4 and T3 produced the most vigorous fruits, while T1 produced the lowest.\u0000Bangladesh J. Zool. 50 (2): 261-272, 2022","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80182034","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}
Abstract not available Bangladesh J. Zool. 50 (2): 241-242, 2022
[摘要][j] .地球物理学报，2016,35 (2):481 - 492
{"title":"Celebrating 50 years of publication of Bangladesh Journal of Zoology","authors":"Md. Niamul Naser","doi":"10.3329/bjz.v50i2.62050","DOIUrl":"https://doi.org/10.3329/bjz.v50i2.62050","url":null,"abstract":"Abstract not available\u0000Bangladesh J. Zool. 50 (2): 241-242, 2022","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":"46 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83135314","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}
Oryza sativa (L.) is one of the world’s most important crop providing staple food for nearly half of the global population. Rice is subjected to considerable damage by a number of grasshoppers. The accurate identification of pest species is a crucial step for the appropriate application of control measures. Molecular characterization and DNA barcoding of grasshopper pests of rice was performed in the present research work. Six species of grasshopper pests were identified from different paddy fields using COI gene sequences. Among the sequences the A+T content (64.2%) was higher than the G+C (35.8%) content. The interspecific genetic distance ranged between 13 and 34%. The haplotype analysis of Conocephalus exemptus showed highest (110) mutated sites among the analyzed species. Both the Maximum likelihood and Neighbor-joining phylogenetic tree construction showed two distinct clades of short-horned and long-horned grasshoppers. C. exemptus was found in another monophyletic group. Our results demonstrate that DNA barcoding is likely to be a powerful tool for identifying and understanding grasshopper evolution. Bangladesh J. Zool. 50 (2): 217-229, 2022
{"title":"Molecular Characterization and Identification of Grasshopper Pests of Rice Inferred From Mitochondrial COI Gene Sequences","authors":"S. Das, Md. Nurjamal Islam, Abu Faiz Md. Aslam","doi":"10.3329/bjz.v50i2.62054","DOIUrl":"https://doi.org/10.3329/bjz.v50i2.62054","url":null,"abstract":"Oryza sativa (L.) is one of the world’s most important crop providing staple food for nearly half of the global population. Rice is subjected to considerable damage by a number of grasshoppers. The accurate identification of pest species is a crucial step for the appropriate application of control measures. Molecular characterization and DNA barcoding of grasshopper pests of rice was performed in the present research work. Six species of grasshopper pests were identified from different paddy fields using COI gene sequences. Among the sequences the A+T content (64.2%) was higher than the G+C (35.8%) content. The interspecific genetic distance ranged between 13 and 34%. The haplotype analysis of Conocephalus exemptus showed highest (110) mutated sites among the analyzed species. Both the Maximum likelihood and Neighbor-joining phylogenetic tree construction showed two distinct clades of short-horned and long-horned grasshoppers. C. exemptus was found in another monophyletic group. Our results demonstrate that DNA barcoding is likely to be a powerful tool for identifying and understanding grasshopper evolution.\u0000Bangladesh J. Zool. 50 (2): 217-229, 2022","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86089673","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}
A. R. Shome, M. Alam, Ripon Chandra Roy, S. Sultana, Md. Fazle Rabbe, M. Naser, Md Mazaharul Islam, Dipto Biswas, M. F. Jaman
Abstract not available Bangladesh J. Zool. 50 (1): 135-139, 2022
[摘要][j] .中国农业科学，2016,35 (1):1 - 3
{"title":"First Confirmed Record of Platygomphus dolabratus Selys, 1854 (Odonata, Anisoptera) in Bangladesh","authors":"A. R. Shome, M. Alam, Ripon Chandra Roy, S. Sultana, Md. Fazle Rabbe, M. Naser, Md Mazaharul Islam, Dipto Biswas, M. F. Jaman","doi":"10.3329/bjz.v50i1.60097","DOIUrl":"https://doi.org/10.3329/bjz.v50i1.60097","url":null,"abstract":"Abstract not available\u0000Bangladesh J. Zool. 50 (1): 135-139, 2022 ","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85731478","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}
Md. Sakhawat Hossain, Md Abu Saeed, Md. Farid Ahsan, M. Jaman, Hasan Al Razi Chayan, Sabit Hasan, Sajib Biswas, M. Asaduzzaman
Venomous snakes are one of the most dreadful animals globally that kill their victims by injecting venoms (toxic substances) using fangs. However, snakes are being used for numerous vital life-saving purposes, including antivenom and traditional medicines, pain killers, cancer treatment, cardiac arrest, paralysis, arthritis, anti-ageing, and cosmetics to leather products, foods, display and research. This study was conducted to investigate the current status, challenges and prospects of snake farming in Bangladesh using self-structured questionnaires surveys. In this study, in total, 281 snakes belonging to 12 species i.e., common krait Bungarus caeruleus, banded krait B. fasciatus, greater black krait Bungarus niger, monocled cobra Naja kaouthia, spectacled cobra Naja naja, king cobra Ophiophagus hannah, russell's viper Daboia russelii, indian python Python molurus, common sand boa Eryx conicus, common cat snake Boiga trigonata, common wolf snake Lycodon aulicus and rat snake Ptyas mucosa were observed. This study also showed that the largest snake farm was at Patuakhali, where about 231 venomous snake individuals were reared, while 35 snakes were reared in Rajshahi farm, eight and seven snakes were reared in Rajbari and Gazipur farms, respectively. These snakes were collected from snake catchers/charmers and rescued from several places and nature. Snakes were fed on natural feeds (toad, frog, rat, and snake) and chickens. These farms had small to medium tin-shed building infrastructure with minimal facilities and used tanks, cages, and vivaria for snake rearing, breeding, and displaying. Snake farmers had not received any training, but some skilled snake handlers operated these farms. These snake farms did not keep managemental activities records and lack of proper design. These were not collected and preserved snake venom and were mainly involved in snake displaying. Although this study did not explore much information but snake farming may have great potential in Bangladesh; thus, more research is warranted on proper snake farming facilities. However, the government could be initiated the establishment of a modern and sophisticated snake farm for research, development, conservation, and venom collection including antivenom production and pharmaceutical purposes. Hence, the existing snake resources and skilled professionals may assist the government in snake farming activities. Bangladesh J. Zool. 50 (1): 121-133, 2022
{"title":"Present Status, Challenges and Prospects of Snake Farming in Bangladesh","authors":"Md. Sakhawat Hossain, Md Abu Saeed, Md. Farid Ahsan, M. Jaman, Hasan Al Razi Chayan, Sabit Hasan, Sajib Biswas, M. Asaduzzaman","doi":"10.3329/bjz.v50i1.60096","DOIUrl":"https://doi.org/10.3329/bjz.v50i1.60096","url":null,"abstract":"Venomous snakes are one of the most dreadful animals globally that kill their victims by injecting venoms (toxic substances) using fangs. However, snakes are being used for numerous vital life-saving purposes, including antivenom and traditional medicines, pain killers, cancer treatment, cardiac arrest, paralysis, arthritis, anti-ageing, and cosmetics to leather products, foods, display and research. This study was conducted to investigate the current status, challenges and prospects of snake farming in Bangladesh using self-structured questionnaires surveys. In this study, in total, 281 snakes belonging to 12 species i.e., common krait Bungarus caeruleus, banded krait B. fasciatus, greater black krait Bungarus niger, monocled cobra Naja kaouthia, spectacled cobra Naja naja, king cobra Ophiophagus hannah, russell's viper Daboia russelii, indian python Python molurus, common sand boa Eryx conicus, common cat snake Boiga trigonata, common wolf snake Lycodon aulicus and rat snake Ptyas mucosa were observed. This study also showed that the largest snake farm was at Patuakhali, where about 231 venomous snake individuals were reared, while 35 snakes were reared in Rajshahi farm, eight and seven snakes were reared in Rajbari and Gazipur farms, respectively. These snakes were collected from snake catchers/charmers and rescued from several places and nature. Snakes were fed on natural feeds (toad, frog, rat, and snake) and chickens. These farms had small to medium tin-shed building infrastructure with minimal facilities and used tanks, cages, and vivaria for snake rearing, breeding, and displaying. Snake farmers had not received any training, but some skilled snake handlers operated these farms. These snake farms did not keep managemental activities records and lack of proper design. These were not collected and preserved snake venom and were mainly involved in snake displaying. Although this study did not explore much information but snake farming may have great potential in Bangladesh; thus, more research is warranted on proper snake farming facilities. However, the government could be initiated the establishment of a modern and sophisticated snake farm for research, development, conservation, and venom collection including antivenom production and pharmaceutical purposes. Hence, the existing snake resources and skilled professionals may assist the government in snake farming activities.\u0000Bangladesh J. Zool. 50 (1): 121-133, 2022","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84207355","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}
Lice of five wild bird species, of diversified feeding habits and phylogeny viz., Sturnus contra, Acridotheres tristis, A. fuscus, Pycnonotus cafer and Streptopelia chinensis – have been investigated between 2014 and 2018 from the Chittagong University Campus and adjoining areas. A total of six lice species, viz., Menacanthus eurysternus (Burmeister), Sturnidoecus sturni (Clay), Bruelia zohrae (Ansari), Myrsidea kathleenae (Hellenthal and Price), Columbicola turturis (Uchida) and Nitzschiella lativentris (Uchida), were identified and described. Among them, five were strictly host specific – S. sturni (in S. contra), B. zohrae (in A. fuscus), M. kathleenae (in P. cafer), C. turturis (in S. chinensis), and N. lativentris (in S. chinensis). The remaining species, M. eurysternus, had wide specificity – occurring in all the three sturnid species investigated, i.e., S. contra, A. tristis and A. fuscus. Closely related hosts were found to share similar parasite species whereas unrelated host possess completely different lice species. Of the five hosts, three (S. contra, A. fuscus, and Streptopelia chinensis) were found to be infested by two lice species each, whereas, A. tristis and P. cafer hosted by a single lice species each. Bangladesh J. Zool. 50 (1): 51-66, 2022
{"title":"Taxonomy of wild birds’ lice at the campus of Chittagong University, Chattogram, Bangladesh","authors":"Aftab Hossain, Syeda Ismat Ara, Asms Rahman","doi":"10.3329/bjz.v50i1.60091","DOIUrl":"https://doi.org/10.3329/bjz.v50i1.60091","url":null,"abstract":"Lice of five wild bird species, of diversified feeding habits and phylogeny viz., Sturnus contra, Acridotheres tristis, A. fuscus, Pycnonotus cafer and Streptopelia chinensis – have been investigated between 2014 and 2018 from the Chittagong University Campus and adjoining areas. A total of six lice species, viz., Menacanthus eurysternus (Burmeister), Sturnidoecus sturni (Clay), Bruelia zohrae (Ansari), Myrsidea kathleenae (Hellenthal and Price), Columbicola turturis (Uchida) and Nitzschiella lativentris (Uchida), were identified and described. Among them, five were strictly host specific – S. sturni (in S. contra), B. zohrae (in A. fuscus), M. kathleenae (in P. cafer), C. turturis (in S. chinensis), and N. lativentris (in S. chinensis). The remaining species, M. eurysternus, had wide specificity – occurring in all the three sturnid species investigated, i.e., S. contra, A. tristis and A. fuscus. Closely related hosts were found to share similar parasite species whereas unrelated host possess completely different lice species. Of the five hosts, three (S. contra, A. fuscus, and Streptopelia chinensis) were found to be infested by two lice species each, whereas, A. tristis and P. cafer hosted by a single lice species each.\u0000Bangladesh J. Zool. 50 (1): 51-66, 2022","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88760347","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}
Coccids are amongst the most destructive pests of horticultural, agricultural, household ornamental plants, and wild plants in varying degrees. To evaluate the prevalence of its fauna in Jahangirnagar University Campus (JUC), Savar, Dhaka, Bangladesh, a year-long study was conducted from September 2004 to August 2005, by visual counting in regular fortnightly visits. A total of 99755 insects of 13 coccid species were recorded from 12 study sites. They infested 41.2% plants of 786 individuals under 17 host plant species. Coccid incidence varied greatly according to seasons, plant numbers, and study sites. Significant differences were observed in the mean number of coccid fauna (F = 3.87, df = 12, P < 0.05) in different study sites. The highest infestation was observed by Ferrisia virgata followed by Chloropulvinaria pisdii, Planococcus pacificus, Perissopneumon ferox, Icerya aegyptiaca, Aspidiotus destructor, Crypticerya jacobsoni, Icerya minor, Rastrococcus spinosus, Pseudococcus citriculus, Maconellicoccus hirsutus, Cerococcus indicus, and Coccus hesperidum. The total number of plants present in the study sites was positively correlated with the total infested plants (r = 0.451). Highly infested plants attracted more insects than less infested plants (r = 0.813). The coccid population started to increase after the winter season and maintained a steady level up to the end of the rainy season (March to August). All study sites contained insect populations but SS-6, 7, 8, and 10 harbored significantly higher numbers of them. Rain did not make any significant differences (F = 1.445, df = 11, P = 0.168) in the pest infestation. The mean number of coccids at different months was positively correlated with the monthly average temperature (r = 0.390) and relative humidity (r = 0.412). The present findings may help in designing an integrated coccid management system. Bangladesh J. Zool. 50 (1): 67-82, 2022
{"title":"Spatial Distribution and Seasonal Incidence of coccid Mealybugs (Coccoidea Homoptera) in Jahangirnagar University Campus, Bangladesh","authors":"Ibna Zayed Chowdhury, Gm Saifur Rahman, Md. Abdul. Baqui","doi":"10.3329/bjz.v50i1.60092","DOIUrl":"https://doi.org/10.3329/bjz.v50i1.60092","url":null,"abstract":"Coccids are amongst the most destructive pests of horticultural, agricultural, household ornamental plants, and wild plants in varying degrees. To evaluate the prevalence of its fauna in Jahangirnagar University Campus (JUC), Savar, Dhaka, Bangladesh, a year-long study was conducted from September 2004 to August 2005, by visual counting in regular fortnightly visits. A total of 99755 insects of 13 coccid species were recorded from 12 study sites. They infested 41.2% plants of 786 individuals under 17 host plant species. Coccid incidence varied greatly according to seasons, plant numbers, and study sites. Significant differences were observed in the mean number of coccid fauna (F = 3.87, df = 12, P < 0.05) in different study sites. The highest infestation was observed by Ferrisia virgata followed by Chloropulvinaria pisdii, Planococcus pacificus, Perissopneumon ferox, Icerya aegyptiaca, Aspidiotus destructor, Crypticerya jacobsoni, Icerya minor, Rastrococcus spinosus, Pseudococcus citriculus, Maconellicoccus hirsutus, Cerococcus indicus, and Coccus hesperidum. The total number of plants present in the study sites was positively correlated with the total infested plants (r = 0.451). Highly infested plants attracted more insects than less infested plants (r = 0.813). The coccid population started to increase after the winter season and maintained a steady level up to the end of the rainy season (March to August). All study sites contained insect populations but SS-6, 7, 8, and 10 harbored significantly higher numbers of them. Rain did not make any significant differences (F = 1.445, df = 11, P = 0.168) in the pest infestation. The mean number of coccids at different months was positively correlated with the monthly average temperature (r = 0.390) and relative humidity (r = 0.412). The present findings may help in designing an integrated coccid management system.\u0000Bangladesh J. Zool. 50 (1): 67-82, 2022","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82613688","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}
This paper was aimed to focus on the situation and the source of short-lived climate pollutants (SLCPs) in the atmosphere of Bangladesh and their impact on the environment and health. The study used a qualitative research methodology and a review of the relevant literature to fulfill the objectives. The study showed that SLCPs were the most important air pollutants and responsible for reducing crop yields. These also had significant adverse impacts on health, agriculture and climate. The black carbon (BC) and the ozone caused adverse health impacts, which are likely leading to premature deaths in Bangladesh. The SLCPs may have direct adverse impacts on the economy, health, agriculture production, ecosystems, biodiversity, and climate change. Strategic measures should be undertaken to reduce and mitigate the SLCPs in the atmosphere of Bangladesh. Therefore, several necessary steps including introducing clean-burning biomass stoves for cooking, encouraging diesel to CNG conversion vehicles, replacing traditional brick kilns with modern technologies, and stopping the burning of agricultural residue are recommended. Bangladesh J. Zool. 50 (1): 3-21, 2022
{"title":"An Analysis of Sectorial Emissions, Status, and Impacts of Short-lived Climate Pollutants in Bangladesh","authors":"A. Wahab, A. K. Majumder, G. Latifa, F. Islam","doi":"10.3329/bjz.v50i1.60088","DOIUrl":"https://doi.org/10.3329/bjz.v50i1.60088","url":null,"abstract":"This paper was aimed to focus on the situation and the source of short-lived climate pollutants (SLCPs) in the atmosphere of Bangladesh and their impact on the environment and health. The study used a qualitative research methodology and a review of the relevant literature to fulfill the objectives. The study showed that SLCPs were the most important air pollutants and responsible for reducing crop yields. These also had significant adverse impacts on health, agriculture and climate. The black carbon (BC) and the ozone caused adverse health impacts, which are likely leading to premature deaths in Bangladesh. The SLCPs may have direct adverse impacts on the economy, health, agriculture production, ecosystems, biodiversity, and climate change. Strategic measures should be undertaken to reduce and mitigate the SLCPs in the atmosphere of Bangladesh. Therefore, several necessary steps including introducing clean-burning biomass stoves for cooking, encouraging diesel to CNG conversion vehicles, replacing traditional brick kilns with modern technologies, and stopping the burning of agricultural residue are recommended.\u0000Bangladesh J. Zool. 50 (1): 3-21, 2022","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83548738","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}
T. Akter, Nusrat Jahan Kibria, S. Sultana, Sangita Ahmed, S. Begum
The study was undertaken to isolate and identify the bacteria from the gut of honey bees and to investigate their antibiotic sensitivity. A total 35 honey bees were collected from Sher-e-Bangla Agricultural University and Curzon Hall area of Dhaka city. This study was conducted to identify the gram-positive and gram-negative bacteria based on the morphological features using microscope. In this study, four species of honey bees were identified, of which, Apis dorsata was the most dominant (31.43%) species and followed by 17.14% for Apis cerana and 2.86% for Apis mellifera and Apis florea, respectively. In total, five gram-positive bacteria genera including Lactobacillus sp. (37.5%), Streptococcus sp. (9.38%), Staphylococcus sp. (21.88%), Enterococcus sp. (6.25%), and Clostridium sp. (9.38%); and two gram-negative bacteria i.e., Pseudomonas sp. (3.13%), and Enterobacter sp. (12.5%) were detected. Gram-positive bacteria were the most dominant at the honey bee gut in two sites, while bacteria did not detect in A. dorsata gut which was collected from Sher-e-Bangla Agricultural University. However, five types of bacteria were isolated from the gut of A. dorsata collected from Curzon Hall area. In total, the highest varieties (6 out of 7) and number of isolates (15) were found from A. florea. Whereas, the highest number of bacteria was isolated from A. florea (12) for Curzon Hall area, and A. cerana (6) for Sher-e-Bangla Agricultural University. In antibiotic susceptibility test, the isolated Streptococcus sp., Staphylococcus sp. and Enterococcus sp. were sensitive to the majority of the antibiotics. However, the isolated Lactobacilllus sp., Clostridium sp., Enterobacter sp. and Pseudomonas sp. were resistant to the majority of antibiotics. The results show that the presence or absence of bacterium in honey bees gut was an indicator for their overall health. Bangladesh J. Zool. 50 (1): 83-93, 2022
{"title":"Gut Bacterial Diversity and their Antibiotic Resistance in Honey Bee Communities of Dhaka City","authors":"T. Akter, Nusrat Jahan Kibria, S. Sultana, Sangita Ahmed, S. Begum","doi":"10.3329/bjz.v50i1.60093","DOIUrl":"https://doi.org/10.3329/bjz.v50i1.60093","url":null,"abstract":"The study was undertaken to isolate and identify the bacteria from the gut of honey bees and to investigate their antibiotic sensitivity. A total 35 honey bees were collected from Sher-e-Bangla Agricultural University and Curzon Hall area of Dhaka city. This study was conducted to identify the gram-positive and gram-negative bacteria based on the morphological features using microscope. In this study, four species of honey bees were identified, of which, Apis dorsata was the most dominant (31.43%) species and followed by 17.14% for Apis cerana and 2.86% for Apis mellifera and Apis florea, respectively. In total, five gram-positive bacteria genera including Lactobacillus sp. (37.5%), Streptococcus sp. (9.38%), Staphylococcus sp. (21.88%), Enterococcus sp. (6.25%), and Clostridium sp. (9.38%); and two gram-negative bacteria i.e., Pseudomonas sp. (3.13%), and Enterobacter sp. (12.5%) were detected. Gram-positive bacteria were the most dominant at the honey bee gut in two sites, while bacteria did not detect in A. dorsata gut which was collected from Sher-e-Bangla Agricultural University. However, five types of bacteria were isolated from the gut of A. dorsata collected from Curzon Hall area. In total, the highest varieties (6 out of 7) and number of isolates (15) were found from A. florea. Whereas, the highest number of bacteria was isolated from A. florea (12) for Curzon Hall area, and A. cerana (6) for Sher-e-Bangla Agricultural University. In antibiotic susceptibility test, the isolated Streptococcus sp., Staphylococcus sp. and Enterococcus sp. were sensitive to the majority of the antibiotics. However, the isolated Lactobacilllus sp., Clostridium sp., Enterobacter sp. and Pseudomonas sp. were resistant to the majority of antibiotics. The results show that the presence or absence of bacterium in honey bees gut was an indicator for their overall health.\u0000Bangladesh J. Zool. 50 (1): 83-93, 2022","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87500183","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}
Fahmida Jannati Priya, Md. Enamul Haque, Arzina Hossain, Md. Ashikur Rahman, Mahfuza Islam, M. Munshi, K. Asaduzzaman, R. Huque
The study was conducted to evaluate the effects of gamma radiation (1.5 and 3.5 kGy) on quality and shelf-life of brine-treated (18% NaCL) cultured and indigenous Climbing perch, Anabas testudineus during storage at low temperature (4°C) through sensory (Organoleptic Score, OS), chemical (Tyrosine Value, TV) and microbial analyses (Total Bacterial Count, TBC; Total Salmonella and Shigella Count, TSS; and Total Staphylococcus Count, TSC) at weekly intervals for a period of 35 days. The quality of both cultured and indigenous perch deteriorated with the increase of time. The values of TV (23.69 – 86.20 mg/100 g) and TSS (0 – 4.43 cfu/g) were tended to be high in non-irradiated perch while the values of TBC (3.00 – 11.63 cfu/g) and TSC (2.00 – 6.52 cfu/g) showed increasing trends in irradiated samples for both stains. The findings demonstrated that the synergistic effects of brine and gamma radiation in combination with low temperature could be the most effective treatment for the shelf-life extension of perch and this technique might be applied for large scale preservation of any other local fishes of Bangladesh towards food security. Bangladesh J. Zool. 50 (1): 107-119, 2022
{"title":"Gamma Radiation Exposure Towards Shelf-Life Extension of Brine-Treated Indigenous Climbing Perch, Anabas testudineus","authors":"Fahmida Jannati Priya, Md. Enamul Haque, Arzina Hossain, Md. Ashikur Rahman, Mahfuza Islam, M. Munshi, K. Asaduzzaman, R. Huque","doi":"10.3329/bjz.v50i1.60095","DOIUrl":"https://doi.org/10.3329/bjz.v50i1.60095","url":null,"abstract":"The study was conducted to evaluate the effects of gamma radiation (1.5 and 3.5 kGy) on quality and shelf-life of brine-treated (18% NaCL) cultured and indigenous Climbing perch, Anabas testudineus during storage at low temperature (4°C) through sensory (Organoleptic Score, OS), chemical (Tyrosine Value, TV) and microbial analyses (Total Bacterial Count, TBC; Total Salmonella and Shigella Count, TSS; and Total Staphylococcus Count, TSC) at weekly intervals for a period of 35 days. The quality of both cultured and indigenous perch deteriorated with the increase of time. The values of TV (23.69 – 86.20 mg/100 g) and TSS (0 – 4.43 cfu/g) were tended to be high in non-irradiated perch while the values of TBC (3.00 – 11.63 cfu/g) and TSC (2.00 – 6.52 cfu/g) showed increasing trends in irradiated samples for both stains. The findings demonstrated that the synergistic effects of brine and gamma radiation in combination with low temperature could be the most effective treatment for the shelf-life extension of perch and this technique might be applied for large scale preservation of any other local fishes of Bangladesh towards food security.\u0000Bangladesh J. Zool. 50 (1): 107-119, 2022","PeriodicalId":8702,"journal":{"name":"Bangladesh Journal of Zoology","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87036338","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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