MD. Al Amin - Academia.edu (original) (raw)

Papers by MD. Al Amin

Future Virology, 2021

The newly emerged human coronavirus, SARS-CoV-2, had begun to spread last year and sparked worldw... more The newly emerged human coronavirus, SARS-CoV-2, had begun to spread last year and sparked worldwide. In this study, molecular docking is utilized to test some previously approved drugs against the SARS-CoV-2 nonstructural protein 15 (Nsp15). We screened 23 drugs, from which three (saquinavir, valrubicin and aprepitant) show a paramount predicted binding affinity (-9.1, -9.6 and -9.2 kcal/mol, respectively) against SARS-CoV-2 Nsp15. Moreover, saquinavir and aprepitant make nonbonded interactions with Leu201 in the active site cavity of Nsp15, while the drug valrubicin interacts with Arg199 and Leu201. This binding pattern may be effective against the targeted protein, leading to Nsp15 blockage and virus abolition. Additionally, the pharmacological properties of the screened drugs are known since they have been approved against different viruses.

Journal of Advanced Biotechnology and Experimental Therapeutics, 2020

This investigation was carried out to observe the migration status and the feeding guild of the a... more This investigation was carried out to observe the migration status and the feeding guild of the avian fauna including the relative diversity of Jaipurhat district of Bangladesh. Data were collected from November 2017 to October 2019. During the study period, 89 avian species were recorded that belong to 32 families under 11 orders among which 8 (8.99%) species were common winter visitors, 3 (3.37%) were common summer visitors, 8 (8.99%) were resident migratory, 1 (1.12%) were rare resident and 69 (77.53%) were resident birds. Among the birds observed in the study area during the study period the highest number of birds was found to be insectivorous (41.57%), then the carnivorous (8.99%), then omnivorous, piscivorous and picio carnivorous (7.87%), then insecto frugivorous (6.67%), then frugivorous (5.62%), then frugio graminivorous (4.49%), then nectarivorous (3.39%), then graminivorous and molluscio carnivorous (2.25%) and insecto carnivorous (1.12%). The hight avian diversity (69.662%) was observed in Mithapur which is human inhabited area with crop lands and a lot of fruit trees and the lowest (32.584%) diversity was in Shree Rampur Bill and Kastogari Bill which has large water bodies. This study will be helpful to understand the status of birds in different season in the study area.

Saudi Journal of Biological Sciences, 2021

This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

World Journal of Advanced Research and Reviews, 2021

The present study revealed that a total of 101 indigenous species of large fish (28 species) and ... more The present study revealed that a total of 101 indigenous species of large fish (28 species) and Small Indigenous fish (73 species) belonging to 63 genera and 31 families were observed and identified while 17 exotic fish species were found under 5 families. Among the indigenous species, the highest number of species were found in family Cyprinidae and Bagridae with a relative diversity of 28.28% and 11.11%. In case of group species richness, highest number 27 fish species were found in catfish group followed by 12 species of carp, 8 species of each barbs and minnows, 6 species of eel fish, 8 species of loaches, 4 species of each prawn, snake-headed or airbreathing fish and glass perches, 3 species of each climbing perches and clupeid, 2 species of each goby fish, knifefish and puffer fish, and rest of the group true perch, leaf fish, halfbeak fish, Needlefish, mullet fish, anchovies and killifish has one species. Of the total species, 47 species were considered as least concerned, 1...

The present study revealed that a total of 101 indigenous species of large fish (28 species) and ... more The present study revealed that a total of 101 indigenous species of large fish (28 species) and Small Indigenous fish (73 species) belonging to 63 genera and 31 families were observed and identified while 17 exotic fish species were found under 5 families. Among the indigenous species, the highest number of species were found in family Cyprinidae and Bagridae with a relative diversity of 28.28% and 11.11%. In case of group species richness, highest number 27 fish species were found in catfish group followed by 12 species of carp, 8 species of each barbs and minnows, 6 species of eel fish, 8 species of loaches, 4 species of each prawn, snake-headed or airbreathing fish and glass perches, 3 species of each climbing perches and clupeid, 2 species of each goby fish, knifefish and puffer fish, and rest of the group true perch, leaf fish, halfbeak fish, Needlefish, mullet fish, anchovies and killifish has one species. Of the total species, 47 species were considered as least concerned, 10 species as vulnerable, 11 species as endangered, 11 species as critically endangered, 14 species as nearly threatened and 8 species as data deficient. Considering the seasonal variation for all selected areas simultaneously, Shannon-Weaver diversity (H) index were found ranged from 3.53 (May) to 4.37 (January) where the highest Shannon-Weaver diversity index value 4.37 were found in winter season while 3.01 in Phulkumar, 3.73 in Dudhkumar, 3.87 in Dharla, 3.67 in Tista and 3.79 in Brahmaputra were recorded separately.

World Journal of Advanced Research and Reviews, 2021

The present study revealed that a total of 101 indigenous species of large fish (28 species) and ... more The present study revealed that a total of 101 indigenous species of large fish (28 species) and Small Indigenous fish (73 species) belonging to 63 genera and 31 families were observed and identified while 17 exotic fish species were found under 5 families. Among the indigenous species, the highest number of species were found in family Cyprinidae and Bagridae with a relative diversity of 28.28% and 11.11%. In case of group species richness, highest number 27 fish species were found in catfish group followed by 12 species of carp, 8 species of each barbs and minnows, 6 species of eel fish, 8 species of loaches, 4 species of each prawn, snake-headed or airbreathing fish and glass perches, 3 species of each climbing perches and clupeid, 2 species of each goby fish, knifefish and puffer fish, and rest of the group true perch, leaf fish, halfbeak fish, Needlefish, mullet fish, anchovies and killifish has one species. Of the total species, 47 species were considered as least concerned, 10 species as vulnerable, 11 species as endangered, 11 species as critically endangered, 14 species as nearly threatened and 8 species as data deficient. Considering the seasonal variation for all selected areas simultaneously, Shannon-Weaver diversity (H) index were found ranged from 3.53 (May) to 4.37 (January) where the highest Shannon-Weaver diversity index value 4.37 were found in winter season while 3.01 in Phulkumar, 3.73 in Dudhkumar, 3.87 in Dharla, 3.67 in Tista and 3.79 in Brahmaputra were recorded separately.

Journal of Biomolecular Structure and Dynamics

Newly emerged SARS-CoV-2 made recent pandemic situations across the globe is accountable for coun... more Newly emerged SARS-CoV-2 made recent pandemic situations across the globe is accountable for countless unwanted death and insufferable panic associated with co-morbidities among mass people. The scarcity of appropriate medical treatment and no effective vaccine or medicine against SARS-CoV-2 has turned the situation worst. Therefore, in this study, we made a deep literature review to enlist plant-derived natural compounds and considered their binding mechanism with the main protease of SARS-CoV-2 through combinatorial bioinformatics approaches. Among all, a total of 14 compounds were filtered where Carinol, Albanin, Myricetin were had better binding profile than the rest of the compounds with having binding energy of-8.476,-8.036,-8.439 kcal/mol, respectively. Furthermore, MM-GBSA calculations were also considered in this selection process to support docking studies. Besides, 100 ns molecular dynamics simulation endorsed the rigid nature, less conformational variation and binding stiffness. As this study, represents a perfect model for SARS-CoV-2 main protease inhibition through bioinformatics study, these potential drug candidates may assist the researchers to find a superior and effective solution against COVID-19 after future experiments.

Egypt. Acad. J. Biolog. Sci., 2020

Eryx jayakari (Arabian sand boa) is an important egg-laying boa that successfully reversed the ov... more Eryx jayakari (Arabian sand boa) is an important egg-laying boa that successfully reversed the oviparous ability about 60 million years after the transition of the group to viviparous. The current study aimed to infer the phylogeny of Eryx jayakari - isolated by our group from Hail province, Saudi Arabia- to other boas using mitochondrial 16S and 12S rRNA sequences and bioinformatics tools (MultAlin alignment, Mega program, and the Maximum Likelihood method). 16S rRNA phylogenetic tree inferred a strong relation between E. jayakari isolated from Ha’il (KSA) and that isolated from Khuzestan (Iran). 12S rRNA gene sequences showed a higher diversification than the 16S rRNA gene sequences in inferring the phylogenetic relationships for E. jayakari. A strong relation between E. jayakari and E. miliaris was also observed. It can be concluded that E. jayakari in Hail might be disseminated from Iran. More 12S rRNA sequences from Iran are required for further assessments.

Journal of Advanced Biotechnology and Experimental Therapeutics, 2020

This investigation was carried out to observe the migration status and the feeding guild of the a... more This investigation was carried out to observe the migration status and the feeding guild of the avian fauna including the relative diversity of Jaipurhat district of Bangladesh. Data were collected from November 2017 to October 2019. During the study period, 89 avian species were recorded that belong to 32 families under 11 orders among which 8 (8.99%) species were common winter visitors, 3 (3.37%) were common summer visitors, 8 (8.99%) were resident migratory, 1 (1.12%) were rare resident and 69 (77.53%) were resident birds. Among the birds observed in the study area during the study period the highest number of birds was found to be insectivorous (41.57%), then the carnivorous (8.99%), then omnivorous, piscivorous and picio carnivorous (7.87%), then insecto frugivorous (6.67%), then frugivorous (5.62%), then frugio graminivorous (4.49%), then nectarivorous (3.39%), then graminivorous and molluscio carnivorous (2.25%) and insecto carnivorous (1.12%). The hight avian diversity (69.662%) was observed in Mithapur which is human inhabited area with crop lands and a lot of fruit trees and the lowest (32.584%) diversity was in Shree Rampur Bill and Kastogari Bill which has large water bodies. This study will be helpful to understand the status of birds in different season in the study area.

This investigation was carried out to observe the migration status and the feeding guild of the a... more This investigation was carried out to observe the migration status and the feeding guild of the avian fauna including the relative diversity of Jaipurhat district of Bangladesh. Data were collected from November 2017 to October 2019. During the study period, 89 avian species were recorded that belong to 32 families under 11 orders among which 8 (8.99%) species were common winter visitors, 3 (3.37%) were common summer visitors, 8 (8.99%) were resident migratory, 1 (1.12%) were rare resident and 69 (77.53%) were resident birds. Among the birds observed in the study area during the study period the highest number of birds was found to be insectivorous (41.57%), then the carnivorous (8.99%), then omnivorous, piscivorous and picio carnivorous (7.87%), then insecto frugivorous (6.67%), then frugivorous (5.62%), then frugio graminivorous (4.49%), then nectarivorous (3.39%), then graminivorous and molluscio carnivorous (2.25%) and insecto carnivorous (1.12%). The hight avian diversity (69.662%) was observed in Mithapur which is human inhabited area with crop lands and a lot of fruit trees and the lowest (32.584%) diversity was in Shree Rampur Bill and Kastogari Bill which has large water bodies. This study will be helpful to understand the status of birds in different season in the study area.

International Journal of Zoology Studies , 2019

An investigation was carried out to make a checklist and enlist the avian diversity of Atrai, Ran... more An investigation was carried out to make a checklist and enlist the avian diversity of Atrai, Raninagar, and Naogan Sadar Upazila of Naogaon District of Bangladesh. Data were collected from April 2011 to October 2018. During the study period, 105 avian species were recorded that belong to 33 families under 11 orders. Among the found total 32 (30.48%) migratory birds 17 (16.19%) species were common winter visitors, 3 (2.86%) species were common summer visitors, 12 (11.43) species were resident migratory birds and 72 (68.57%) were residents among which 1 (0.95%) was rare species. The feeding guild and diversity index of birds were also noticed.

Bangladesh Journal of Entomology, 2017

The leaf, root and stem were extracted with n-Hexane, acetone, chloroform and methanol from Cappa... more The leaf, root and stem were extracted with n-Hexane, acetone, chloroform and methanol from Capparis zylanica Linn. and were screened against Cryptolestes pussilus (Schon.) for the toxicity tests. The tested extracts showed deterrent activities against adult Cryptolestes pussilus at concentrations of 707.06, 353.53, 176.77, 88.38 and 44.19 µg/cm 2 on petri dishes. Toxicity test of the leaf, stem and root extracts of tested plant showed the intensity of activity in descending order was leaf>root>stem and in all the cases significant differences were observed.

Observation on the birds of the Padma river charland, from Godagari to Charghat Upazilla includin... more Observation on the birds of the Padma river charland, from Godagari to Charghat Upazilla including Rajshahi City Corporation area, was started in 2008 and the study is still going on. The study area is approximately 60 kilometers. Total 141 species of birds have recorded till now, of which 45 species are waterbirds. Among the waterbirds 60.00% are migratory and 40.00% are residents of Bangladesh. These waterbirds belong to the families Scolopacidae (16, 35.56%), Ardeidae (7, 15.56%), Anatidae and Charadridae (6, 13.33%), Phalacrocoracidae (3, 6.67%), Podicipedae (2, 4.44%), Rallidae, Ciconiidae, Laridae and Glareolidae (1, 2.22%). Two 'Nearly Threatened' species of waterbirds have recorded during the study period.

University Journal of Zoology, Rajshahi University, 2014

Observation on the birds of the Padma river charland, from Godagari to Charghat Upazilla includi... more Observation on the birds of the Padma river charland, from Godagari to Charghat Upazilla including Rajshahi City Corporation area, was started in 2008 and the study is still going on. The study area is approximately 60 kilometers. Total 141 species of birds have recorded till now, of which 45 species are waterbirds. Among the waterbirds 60.00% are migratory and 40.00% are residents of Bangladesh. These waterbirds belong to the families Scolopacidae (16, 35.56%), Ardeidae (7, 15.56%), Anatidae and Charadridae (6, 13.33%), Phalacrocoracidae (3, 6.67%), Podicipedae (2, 4.44%), Rallidae, Ciconiidae, Laridae and Glareolidae (1, 2.22%). Two ‘Nearly Threatened’ species of waterbirds have recorded during the study period.

Bangladesh Journal of Industrial Microbiology & Biotechnology, 2018

For the first time in Bangladesh, a real-time PCR technology targeting porcine specific mitochond... more For the first time in Bangladesh, a real-time PCR technology targeting porcine specific mitochondrial cytochrome b gene, based on the TaqMan probe has been tested for the halal authentication of animal feed products. Twenty two different feed samples were tested. Two out of three samples of imported meat and bone meal (MBM) were confirmed to be positive for pork. Ten of eleven fish feeds were negative for pork. Both two samples of cattle feeds were free from porcine DNA. Among six samples of poultry feeds, five samples (all locally manufactured) were tested positive. Most of the poultry feeds were tested positive because porcine containing MBM was used in feed formulation to increase protein content. This experiment will be helpful in further screening of porcine origin in imported foodstuffs as porcine containing materials are banned to import by government import policy of Bangladesh. It is also important for the users as they have right to know about the feed ingredients. These findings will also be useful for the exporters worldwide to deal with the markets where halal certification is mandatory for feedstuffs.

Future Virology, 2021

The newly emerged human coronavirus, SARS-CoV-2, had begun to spread last year and sparked worldw... more The newly emerged human coronavirus, SARS-CoV-2, had begun to spread last year and sparked worldwide. In this study, molecular docking is utilized to test some previously approved drugs against the SARS-CoV-2 nonstructural protein 15 (Nsp15). We screened 23 drugs, from which three (saquinavir, valrubicin and aprepitant) show a paramount predicted binding affinity (-9.1, -9.6 and -9.2 kcal/mol, respectively) against SARS-CoV-2 Nsp15. Moreover, saquinavir and aprepitant make nonbonded interactions with Leu201 in the active site cavity of Nsp15, while the drug valrubicin interacts with Arg199 and Leu201. This binding pattern may be effective against the targeted protein, leading to Nsp15 blockage and virus abolition. Additionally, the pharmacological properties of the screened drugs are known since they have been approved against different viruses.

Journal of Advanced Biotechnology and Experimental Therapeutics, 2020

This investigation was carried out to observe the migration status and the feeding guild of the a... more This investigation was carried out to observe the migration status and the feeding guild of the avian fauna including the relative diversity of Jaipurhat district of Bangladesh. Data were collected from November 2017 to October 2019. During the study period, 89 avian species were recorded that belong to 32 families under 11 orders among which 8 (8.99%) species were common winter visitors, 3 (3.37%) were common summer visitors, 8 (8.99%) were resident migratory, 1 (1.12%) were rare resident and 69 (77.53%) were resident birds. Among the birds observed in the study area during the study period the highest number of birds was found to be insectivorous (41.57%), then the carnivorous (8.99%), then omnivorous, piscivorous and picio carnivorous (7.87%), then insecto frugivorous (6.67%), then frugivorous (5.62%), then frugio graminivorous (4.49%), then nectarivorous (3.39%), then graminivorous and molluscio carnivorous (2.25%) and insecto carnivorous (1.12%). The hight avian diversity (69.662%) was observed in Mithapur which is human inhabited area with crop lands and a lot of fruit trees and the lowest (32.584%) diversity was in Shree Rampur Bill and Kastogari Bill which has large water bodies. This study will be helpful to understand the status of birds in different season in the study area.

Saudi Journal of Biological Sciences, 2021

This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

World Journal of Advanced Research and Reviews, 2021

The present study revealed that a total of 101 indigenous species of large fish (28 species) and ... more The present study revealed that a total of 101 indigenous species of large fish (28 species) and Small Indigenous fish (73 species) belonging to 63 genera and 31 families were observed and identified while 17 exotic fish species were found under 5 families. Among the indigenous species, the highest number of species were found in family Cyprinidae and Bagridae with a relative diversity of 28.28% and 11.11%. In case of group species richness, highest number 27 fish species were found in catfish group followed by 12 species of carp, 8 species of each barbs and minnows, 6 species of eel fish, 8 species of loaches, 4 species of each prawn, snake-headed or airbreathing fish and glass perches, 3 species of each climbing perches and clupeid, 2 species of each goby fish, knifefish and puffer fish, and rest of the group true perch, leaf fish, halfbeak fish, Needlefish, mullet fish, anchovies and killifish has one species. Of the total species, 47 species were considered as least concerned, 1...

The present study revealed that a total of 101 indigenous species of large fish (28 species) and ... more The present study revealed that a total of 101 indigenous species of large fish (28 species) and Small Indigenous fish (73 species) belonging to 63 genera and 31 families were observed and identified while 17 exotic fish species were found under 5 families. Among the indigenous species, the highest number of species were found in family Cyprinidae and Bagridae with a relative diversity of 28.28% and 11.11%. In case of group species richness, highest number 27 fish species were found in catfish group followed by 12 species of carp, 8 species of each barbs and minnows, 6 species of eel fish, 8 species of loaches, 4 species of each prawn, snake-headed or airbreathing fish and glass perches, 3 species of each climbing perches and clupeid, 2 species of each goby fish, knifefish and puffer fish, and rest of the group true perch, leaf fish, halfbeak fish, Needlefish, mullet fish, anchovies and killifish has one species. Of the total species, 47 species were considered as least concerned, 10 species as vulnerable, 11 species as endangered, 11 species as critically endangered, 14 species as nearly threatened and 8 species as data deficient. Considering the seasonal variation for all selected areas simultaneously, Shannon-Weaver diversity (H) index were found ranged from 3.53 (May) to 4.37 (January) where the highest Shannon-Weaver diversity index value 4.37 were found in winter season while 3.01 in Phulkumar, 3.73 in Dudhkumar, 3.87 in Dharla, 3.67 in Tista and 3.79 in Brahmaputra were recorded separately.

World Journal of Advanced Research and Reviews, 2021

The present study revealed that a total of 101 indigenous species of large fish (28 species) and ... more The present study revealed that a total of 101 indigenous species of large fish (28 species) and Small Indigenous fish (73 species) belonging to 63 genera and 31 families were observed and identified while 17 exotic fish species were found under 5 families. Among the indigenous species, the highest number of species were found in family Cyprinidae and Bagridae with a relative diversity of 28.28% and 11.11%. In case of group species richness, highest number 27 fish species were found in catfish group followed by 12 species of carp, 8 species of each barbs and minnows, 6 species of eel fish, 8 species of loaches, 4 species of each prawn, snake-headed or airbreathing fish and glass perches, 3 species of each climbing perches and clupeid, 2 species of each goby fish, knifefish and puffer fish, and rest of the group true perch, leaf fish, halfbeak fish, Needlefish, mullet fish, anchovies and killifish has one species. Of the total species, 47 species were considered as least concerned, 10 species as vulnerable, 11 species as endangered, 11 species as critically endangered, 14 species as nearly threatened and 8 species as data deficient. Considering the seasonal variation for all selected areas simultaneously, Shannon-Weaver diversity (H) index were found ranged from 3.53 (May) to 4.37 (January) where the highest Shannon-Weaver diversity index value 4.37 were found in winter season while 3.01 in Phulkumar, 3.73 in Dudhkumar, 3.87 in Dharla, 3.67 in Tista and 3.79 in Brahmaputra were recorded separately.

Journal of Biomolecular Structure and Dynamics

Newly emerged SARS-CoV-2 made recent pandemic situations across the globe is accountable for coun... more Newly emerged SARS-CoV-2 made recent pandemic situations across the globe is accountable for countless unwanted death and insufferable panic associated with co-morbidities among mass people. The scarcity of appropriate medical treatment and no effective vaccine or medicine against SARS-CoV-2 has turned the situation worst. Therefore, in this study, we made a deep literature review to enlist plant-derived natural compounds and considered their binding mechanism with the main protease of SARS-CoV-2 through combinatorial bioinformatics approaches. Among all, a total of 14 compounds were filtered where Carinol, Albanin, Myricetin were had better binding profile than the rest of the compounds with having binding energy of-8.476,-8.036,-8.439 kcal/mol, respectively. Furthermore, MM-GBSA calculations were also considered in this selection process to support docking studies. Besides, 100 ns molecular dynamics simulation endorsed the rigid nature, less conformational variation and binding stiffness. As this study, represents a perfect model for SARS-CoV-2 main protease inhibition through bioinformatics study, these potential drug candidates may assist the researchers to find a superior and effective solution against COVID-19 after future experiments.

Egypt. Acad. J. Biolog. Sci., 2020

Eryx jayakari (Arabian sand boa) is an important egg-laying boa that successfully reversed the ov... more Eryx jayakari (Arabian sand boa) is an important egg-laying boa that successfully reversed the oviparous ability about 60 million years after the transition of the group to viviparous. The current study aimed to infer the phylogeny of Eryx jayakari - isolated by our group from Hail province, Saudi Arabia- to other boas using mitochondrial 16S and 12S rRNA sequences and bioinformatics tools (MultAlin alignment, Mega program, and the Maximum Likelihood method). 16S rRNA phylogenetic tree inferred a strong relation between E. jayakari isolated from Ha’il (KSA) and that isolated from Khuzestan (Iran). 12S rRNA gene sequences showed a higher diversification than the 16S rRNA gene sequences in inferring the phylogenetic relationships for E. jayakari. A strong relation between E. jayakari and E. miliaris was also observed. It can be concluded that E. jayakari in Hail might be disseminated from Iran. More 12S rRNA sequences from Iran are required for further assessments.

Journal of Advanced Biotechnology and Experimental Therapeutics, 2020

This investigation was carried out to observe the migration status and the feeding guild of the a... more This investigation was carried out to observe the migration status and the feeding guild of the avian fauna including the relative diversity of Jaipurhat district of Bangladesh. Data were collected from November 2017 to October 2019. During the study period, 89 avian species were recorded that belong to 32 families under 11 orders among which 8 (8.99%) species were common winter visitors, 3 (3.37%) were common summer visitors, 8 (8.99%) were resident migratory, 1 (1.12%) were rare resident and 69 (77.53%) were resident birds. Among the birds observed in the study area during the study period the highest number of birds was found to be insectivorous (41.57%), then the carnivorous (8.99%), then omnivorous, piscivorous and picio carnivorous (7.87%), then insecto frugivorous (6.67%), then frugivorous (5.62%), then frugio graminivorous (4.49%), then nectarivorous (3.39%), then graminivorous and molluscio carnivorous (2.25%) and insecto carnivorous (1.12%). The hight avian diversity (69.662%) was observed in Mithapur which is human inhabited area with crop lands and a lot of fruit trees and the lowest (32.584%) diversity was in Shree Rampur Bill and Kastogari Bill which has large water bodies. This study will be helpful to understand the status of birds in different season in the study area.

This investigation was carried out to observe the migration status and the feeding guild of the a... more This investigation was carried out to observe the migration status and the feeding guild of the avian fauna including the relative diversity of Jaipurhat district of Bangladesh. Data were collected from November 2017 to October 2019. During the study period, 89 avian species were recorded that belong to 32 families under 11 orders among which 8 (8.99%) species were common winter visitors, 3 (3.37%) were common summer visitors, 8 (8.99%) were resident migratory, 1 (1.12%) were rare resident and 69 (77.53%) were resident birds. Among the birds observed in the study area during the study period the highest number of birds was found to be insectivorous (41.57%), then the carnivorous (8.99%), then omnivorous, piscivorous and picio carnivorous (7.87%), then insecto frugivorous (6.67%), then frugivorous (5.62%), then frugio graminivorous (4.49%), then nectarivorous (3.39%), then graminivorous and molluscio carnivorous (2.25%) and insecto carnivorous (1.12%). The hight avian diversity (69.662%) was observed in Mithapur which is human inhabited area with crop lands and a lot of fruit trees and the lowest (32.584%) diversity was in Shree Rampur Bill and Kastogari Bill which has large water bodies. This study will be helpful to understand the status of birds in different season in the study area.

International Journal of Zoology Studies , 2019

An investigation was carried out to make a checklist and enlist the avian diversity of Atrai, Ran... more An investigation was carried out to make a checklist and enlist the avian diversity of Atrai, Raninagar, and Naogan Sadar Upazila of Naogaon District of Bangladesh. Data were collected from April 2011 to October 2018. During the study period, 105 avian species were recorded that belong to 33 families under 11 orders. Among the found total 32 (30.48%) migratory birds 17 (16.19%) species were common winter visitors, 3 (2.86%) species were common summer visitors, 12 (11.43) species were resident migratory birds and 72 (68.57%) were residents among which 1 (0.95%) was rare species. The feeding guild and diversity index of birds were also noticed.

Bangladesh Journal of Entomology, 2017

The leaf, root and stem were extracted with n-Hexane, acetone, chloroform and methanol from Cappa... more The leaf, root and stem were extracted with n-Hexane, acetone, chloroform and methanol from Capparis zylanica Linn. and were screened against Cryptolestes pussilus (Schon.) for the toxicity tests. The tested extracts showed deterrent activities against adult Cryptolestes pussilus at concentrations of 707.06, 353.53, 176.77, 88.38 and 44.19 µg/cm 2 on petri dishes. Toxicity test of the leaf, stem and root extracts of tested plant showed the intensity of activity in descending order was leaf>root>stem and in all the cases significant differences were observed.

Observation on the birds of the Padma river charland, from Godagari to Charghat Upazilla includin... more Observation on the birds of the Padma river charland, from Godagari to Charghat Upazilla including Rajshahi City Corporation area, was started in 2008 and the study is still going on. The study area is approximately 60 kilometers. Total 141 species of birds have recorded till now, of which 45 species are waterbirds. Among the waterbirds 60.00% are migratory and 40.00% are residents of Bangladesh. These waterbirds belong to the families Scolopacidae (16, 35.56%), Ardeidae (7, 15.56%), Anatidae and Charadridae (6, 13.33%), Phalacrocoracidae (3, 6.67%), Podicipedae (2, 4.44%), Rallidae, Ciconiidae, Laridae and Glareolidae (1, 2.22%). Two 'Nearly Threatened' species of waterbirds have recorded during the study period.

University Journal of Zoology, Rajshahi University, 2014

Observation on the birds of the Padma river charland, from Godagari to Charghat Upazilla includi... more Observation on the birds of the Padma river charland, from Godagari to Charghat Upazilla including Rajshahi City Corporation area, was started in 2008 and the study is still going on. The study area is approximately 60 kilometers. Total 141 species of birds have recorded till now, of which 45 species are waterbirds. Among the waterbirds 60.00% are migratory and 40.00% are residents of Bangladesh. These waterbirds belong to the families Scolopacidae (16, 35.56%), Ardeidae (7, 15.56%), Anatidae and Charadridae (6, 13.33%), Phalacrocoracidae (3, 6.67%), Podicipedae (2, 4.44%), Rallidae, Ciconiidae, Laridae and Glareolidae (1, 2.22%). Two ‘Nearly Threatened’ species of waterbirds have recorded during the study period.

Bangladesh Journal of Industrial Microbiology & Biotechnology, 2018

For the first time in Bangladesh, a real-time PCR technology targeting porcine specific mitochond... more For the first time in Bangladesh, a real-time PCR technology targeting porcine specific mitochondrial cytochrome b gene, based on the TaqMan probe has been tested for the halal authentication of animal feed products. Twenty two different feed samples were tested. Two out of three samples of imported meat and bone meal (MBM) were confirmed to be positive for pork. Ten of eleven fish feeds were negative for pork. Both two samples of cattle feeds were free from porcine DNA. Among six samples of poultry feeds, five samples (all locally manufactured) were tested positive. Most of the poultry feeds were tested positive because porcine containing MBM was used in feed formulation to increase protein content. This experiment will be helpful in further screening of porcine origin in imported foodstuffs as porcine containing materials are banned to import by government import policy of Bangladesh. It is also important for the users as they have right to know about the feed ingredients. These findings will also be useful for the exporters worldwide to deal with the markets where halal certification is mandatory for feedstuffs.