Pub Date : 2022-01-30DOI: 10.3329/aajbb.v6i3.57717
Shabnam Mostari, SM Harun Ur Rashid, Md. Haydar Ali, M. Akther, Md. Nazrul Islam
Clinicopathological status of duck plague was investigated at different upazila of Dinajpur district during the period from October, 2017 to March, 2018. The clinical features emphasiging the mortality and prevalence, necropsy for gross morbid lesions, histopathological features were examined. The farm and flock history, managemental aspects, vaccination status, nutrition, etc. were recorded carefully. The data was collected and statistically analyzed. Farmer’s complaints about their affected birds were also considered and emphasized. The average mortality rate was recorded as 14.42% and prevalence was 19.81%. The sick birds clinically showed moderate to severe depression, ocular and nasal discharges, ataxia, dypsia. The affected organs were pathologically characterized as mild to moderate congestion and haemorrhages with misshapen, ruptured cystic ova and histopathologically characterized as mild to moderate architectural destruction, reactive cell infiltration. Asian Australas. J. Biosci. Biotechnol. 2021, 6 (3), 147-152
{"title":"Clinicopathological status of duck plague at Dinajpur district of Bangladesh","authors":"Shabnam Mostari, SM Harun Ur Rashid, Md. Haydar Ali, M. Akther, Md. Nazrul Islam","doi":"10.3329/aajbb.v6i3.57717","DOIUrl":"https://doi.org/10.3329/aajbb.v6i3.57717","url":null,"abstract":"Clinicopathological status of duck plague was investigated at different upazila of Dinajpur district during the period from October, 2017 to March, 2018. The clinical features emphasiging the mortality and prevalence, necropsy for gross morbid lesions, histopathological features were examined. The farm and flock history, managemental aspects, vaccination status, nutrition, etc. were recorded carefully. The data was collected and statistically analyzed. Farmer’s complaints about their affected birds were also considered and emphasized. The average mortality rate was recorded as 14.42% and prevalence was 19.81%. The sick birds clinically showed moderate to severe depression, ocular and nasal discharges, ataxia, dypsia. The affected organs were pathologically characterized as mild to moderate congestion and haemorrhages with misshapen, ruptured cystic ova and histopathologically characterized as mild to moderate architectural destruction, reactive cell infiltration.\u0000Asian Australas. J. Biosci. Biotechnol. 2021, 6 (3), 147-152","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122445270","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}
Pub Date : 2021-08-31DOI: 10.3329/aajbb.v6i2.56143
A. Nowsad, M. Akter, A. Shahriar
The present study illustrates species diversity, landing quality and catch composition of fish in 10 fish landing centers of 5 haor upazilas of Kishoreganj haor for 12 months from January 2018 to December 2018. A total of 15 different types of fishing gears were detected to harvest fish in different stations throughout a year. Most of the fishing (46.88%) was conducted by small groups of 2 – 5 fishers, while 24.87% of the fishing was conducted by 6 – 10 fishers. The average depth of water in haor associated rivers and inundated lands during monsoon period varied from 4.87±0.99 to 15.2±6.71 and 2.6±0.55 to 6.2±2.68 feet respectively. Fifty different types of fish species were landed in the selected 10 landing centers, where both cultured fish and captured fish were present. Fishes under the Cyprinidae family included 9 species, viz. Labeo rohita. Gebelion catla, Cirrhinus cirrhosus, Labeo calbasu, Hypophthalmichthys nobilis, Hypophthalmichthys molitrix, Cyprinus carpio, Ctenopharyngodon idella, Labeo gonius covered a maximum of 12450.61±468.32 MT. The second largest landed fish under the family Schilbeidae included 4 species Silonia silondia, Mystus armatus, Mystus cavasius Pseudeutropius atherinoides. Other fish species landed were identified as: 4 species under the family Mastacembelidae, 2 species under Siluridae, 3 species under Clupidae, 1 species under Ambassidae, 2 species under Palaemonidae, 3 species under Channidae, 1 species under Gobidae, 2 species under Bagridae and 1 species from each of the family Heteropneustidae, Pangasiidae, Clariidae, Ailiidae, Botiidae, Nandidae, Cichlidae, Anabantidae, Osphronemidae, Ambassidae, Notopteridae, Notopteridae,Belonidae and Gobiidae. Highest number 14 species landed were under catfish category, followed by 9 species of major carp. The captured total fish landed in 10 landing centers in 12 month period accounted 12,574±1029.64 MT, but the cumulative total landed fish, including pond fish, was 15,795±1666061.93 MT, as calculated by 45 Aratdars of 10 landing centers. About 88.35% fishermen sold the captured fish at local arat, but the rest (11.65%) were sold to large traders (paiker), retailers and consumers. A 56.6% of the fishermen cleaned the captured fish by river water, while 43.4% fishermen did not use water for washing fish before selling. After harvest, 45.62% fishers used clean utensils for carrying fish to arat and 54.38% used uncleaned utensils. Average harvest per fishermen per day was 23.9 kg, of which 22.26 kg was sold in the market and 1.64 kg was used for own family consumption. Out of total fish landed, a 45.2% was transported by fish hold of the country boat, 21.9% by bamboo basket and 14.8% by plastic crate. Relatively small quantity of fish was transported by insulated ice box (4.7%), aluminum container (2.7%) and gunny bag (3.2%). A 32.6% fisherman used ice and 67.4 % fishermen did not use ice after harvesting of fish. During fishing season, fish and ice ratio used by the transpor
{"title":"Landing and distribution of captured fish in selected landing centers in Kishoreganj haor, Bangladesh","authors":"A. Nowsad, M. Akter, A. Shahriar","doi":"10.3329/aajbb.v6i2.56143","DOIUrl":"https://doi.org/10.3329/aajbb.v6i2.56143","url":null,"abstract":"The present study illustrates species diversity, landing quality and catch composition of fish in 10 fish landing centers of 5 haor upazilas of Kishoreganj haor for 12 months from January 2018 to December 2018. A total of 15 different types of fishing gears were detected to harvest fish in different stations throughout a year. Most of the fishing (46.88%) was conducted by small groups of 2 – 5 fishers, while 24.87% of the fishing was conducted by 6 – 10 fishers. The average depth of water in haor associated rivers and inundated lands during monsoon period varied from 4.87±0.99 to 15.2±6.71 and 2.6±0.55 to 6.2±2.68 feet respectively. Fifty different types of fish species were landed in the selected 10 landing centers, where both cultured fish and captured fish were present. Fishes under the Cyprinidae family included 9 species, viz. Labeo rohita. Gebelion catla, Cirrhinus cirrhosus, Labeo calbasu, Hypophthalmichthys nobilis, Hypophthalmichthys molitrix, Cyprinus carpio, Ctenopharyngodon idella, Labeo gonius covered a maximum of 12450.61±468.32 MT. The second largest landed fish under the family Schilbeidae included 4 species Silonia silondia, Mystus armatus, Mystus cavasius Pseudeutropius atherinoides. Other fish species landed were identified as: 4 species under the family Mastacembelidae, 2 species under Siluridae, 3 species under Clupidae, 1 species under Ambassidae, 2 species under Palaemonidae, 3 species under Channidae, 1 species under Gobidae, 2 species under Bagridae and 1 species from each of the family Heteropneustidae, Pangasiidae, Clariidae, Ailiidae, Botiidae, Nandidae, Cichlidae, Anabantidae, Osphronemidae, Ambassidae, Notopteridae, Notopteridae,Belonidae and Gobiidae. Highest number 14 species landed were under catfish category, followed by 9 species of major carp. The captured total fish landed in 10 landing centers in 12 month period accounted 12,574±1029.64 MT, but the cumulative total landed fish, including pond fish, was 15,795±1666061.93 MT, as calculated by 45 Aratdars of 10 landing centers. About 88.35% fishermen sold the captured fish at local arat, but the rest (11.65%) were sold to large traders (paiker), retailers and consumers. A 56.6% of the fishermen cleaned the captured fish by river water, while 43.4% fishermen did not use water for washing fish before selling. After harvest, 45.62% fishers used clean utensils for carrying fish to arat and 54.38% used uncleaned utensils. Average harvest per fishermen per day was 23.9 kg, of which 22.26 kg was sold in the market and 1.64 kg was used for own family consumption. Out of total fish landed, a 45.2% was transported by fish hold of the country boat, 21.9% by bamboo basket and 14.8% by plastic crate. Relatively small quantity of fish was transported by insulated ice box (4.7%), aluminum container (2.7%) and gunny bag (3.2%). A 32.6% fisherman used ice and 67.4 % fishermen did not use ice after harvesting of fish. During fishing season, fish and ice ratio used by the transpor","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127468561","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}
Pub Date : 2021-08-31DOI: 10.3329/aajbb.v6i2.56145
A. Hossain, S. Islam, Abdulla- Al-Asif, H. Rahman
A broad variety of aquaculture-related medications, drugs, and chemicals (AMDC) are extensively used in the aquaculture industry in South-Eastern Bangladesh. Fish farmers are worried about the quality of their final product, and disease outbreaks must be stopped at all costs. Farmers are sometimes one ahead of the curve when it comes to producing healthy final products by including probiotics, vitamins, and minerals into their aquaculture setups to promote early and disease-free output. However, the current study was carried out in south eastern Bangladesh, specifically in the highly dense aquaculture regions of Chandpur, Cumilla, and Feni district (17 upazilas), from November 2016 to January 2018. Questions were asked through interviews and a Focus Group Discussion (FGD) was held to gather primary data. The major target groups were aquaculture farmers, AMDC shops, pharmaceutical company employees, and hatchery owners. In this three-county area, according to the findings from the thorough research, there are a total of 33 companies that advertise 330 generics brand products via their own distributional channels. Among the available AMDC products in the study area, growth promoters were mostly abundant products among all categories while other products such as predator removal products, insecticides and ectoparasiticides, water quality and pond management, plankton producer, plankton bloom cleaner, disinfectant and disease treatment, toxic gas reducer, pH controller, oxygen supply, stress reducer, growth promoter, probiotics and antibiotics were most selling products to the farmers. The present study revealed 19 generic of antibiotics were available and prescribed by the AMDC vendors or aquaculture disease consultants (ADC) around the regions. Additionally, the research also included the dosages of AMDC and the method of administration in the aquaculture pond, which will assist both the farmers and the ADC in selecting and suggesting the appropriate medications or treatments that may be beneficial to the farmers in the long run. Asian Australas. J. Biosci. Biotechnol. 2021, 6 (2), 103-127
{"title":"Aqua medicines, drugs and chemicals (AMDC) used in freshwater aquaculture of South-Eastern Bangladesh","authors":"A. Hossain, S. Islam, Abdulla- Al-Asif, H. Rahman","doi":"10.3329/aajbb.v6i2.56145","DOIUrl":"https://doi.org/10.3329/aajbb.v6i2.56145","url":null,"abstract":"A broad variety of aquaculture-related medications, drugs, and chemicals (AMDC) are extensively used in the aquaculture industry in South-Eastern Bangladesh. Fish farmers are worried about the quality of their final product, and disease outbreaks must be stopped at all costs. Farmers are sometimes one ahead of the curve when it comes to producing healthy final products by including probiotics, vitamins, and minerals into their aquaculture setups to promote early and disease-free output. However, the current study was carried out in south eastern Bangladesh, specifically in the highly dense aquaculture regions of Chandpur, Cumilla, and Feni district (17 upazilas), from November 2016 to January 2018. Questions were asked through interviews and a Focus Group Discussion (FGD) was held to gather primary data. The major target groups were aquaculture farmers, AMDC shops, pharmaceutical company employees, and hatchery owners. In this three-county area, according to the findings from the thorough research, there are a total of 33 companies that advertise 330 generics brand products via their own distributional channels. Among the available AMDC products in the study area, growth promoters were mostly abundant products among all categories while other products such as predator removal products, insecticides and ectoparasiticides, water quality and pond management, plankton producer, plankton bloom cleaner, disinfectant and disease treatment, toxic gas reducer, pH controller, oxygen supply, stress reducer, growth promoter, probiotics and antibiotics were most selling products to the farmers. The present study revealed 19 generic of antibiotics were available and prescribed by the AMDC vendors or aquaculture disease consultants (ADC) around the regions. Additionally, the research also included the dosages of AMDC and the method of administration in the aquaculture pond, which will assist both the farmers and the ADC in selecting and suggesting the appropriate medications or treatments that may be beneficial to the farmers in the long run.\u0000Asian Australas. J. Biosci. Biotechnol. 2021, 6 (2), 103-127","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129022053","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}
Pub Date : 2021-08-31DOI: 10.3329/aajbb.v6i2.56141
M. Ahmed, Mohammad Dalower Hossain Prodhan, A. Begum, M. Afroze, D. Sarker
A study was carried out to detect and estimate the residue of cypermethrin and chlorpyrifos in brinjal, tomato and cauliflower using Gas Chromatography (GC) coupled with Electron Capture Detector (ECD) and Flame Thermionic Detector (FTD). Three supervised field trials were conducted and sprayed with the recommended dose of cypermethrin (1 ml/L of water) and chlorpyrifos (3 ml/L of water) in three vegetables by knapsack sprayer. Samples were collected at 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11 days after spray (DAS). The quantity of cypermethrin residue was above EU-MRLs (Maximum Residue Limit set by European Union) up to 4 DAS with 0.538 mg/kg in cauliflower; 3 DAS with 0.508 mg/kg in brinjal and 0.695 mg/kg in tomato. The quantity decreased down 0.328-0.019 mg/kg in cauliflower (4-9 DAS); 0.098-0.012 mg/kg (4-7 DAS) in brinjal and 0.458-0.022 mg/kg (4-7 DAS) in tomato which were below EU-MRLs (0.5 mg/kg). The quantity of chlorpyrifos residue was above EU-MRLs up to 9 DAS with 0.012 mg/kg in cauliflower but in brinjal and tomato, the detected quantities were above EU-MRLs up to 7 DAS with 0.029 mg/kg and 0.017 mg/kg residue. No residue was detected from brinjal and tomato samples collected at 8 DAS. But in cauliflower, no residue was detected at 10 days after spray. So, brinjal, tomato and cauliflower can be harvested safely at 4 DAS and 5 DAS for cypermethrin and in case of chlorpyrifos it was 8 DAS in brinjal and tomato and 10 DAS in cauliflower. Asian Australas. J. Biosci. Biotechnol. 2021, 6 (2), 60-67
{"title":"Estimation of residue degradation of cypermethrin and chlorpyrifos in brinjal, tomato and cauliflower under supervised field trial","authors":"M. Ahmed, Mohammad Dalower Hossain Prodhan, A. Begum, M. Afroze, D. Sarker","doi":"10.3329/aajbb.v6i2.56141","DOIUrl":"https://doi.org/10.3329/aajbb.v6i2.56141","url":null,"abstract":"A study was carried out to detect and estimate the residue of cypermethrin and chlorpyrifos in brinjal, tomato and cauliflower using Gas Chromatography (GC) coupled with Electron Capture Detector (ECD) and Flame Thermionic Detector (FTD). Three supervised field trials were conducted and sprayed with the recommended dose of cypermethrin (1 ml/L of water) and chlorpyrifos (3 ml/L of water) in three vegetables by knapsack sprayer. Samples were collected at 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11 days after spray (DAS). The quantity of cypermethrin residue was above EU-MRLs (Maximum Residue Limit set by European Union) up to 4 DAS with 0.538 mg/kg in cauliflower; 3 DAS with 0.508 mg/kg in brinjal and 0.695 mg/kg in tomato. The quantity decreased down 0.328-0.019 mg/kg in cauliflower (4-9 DAS); 0.098-0.012 mg/kg (4-7 DAS) in brinjal and 0.458-0.022 mg/kg (4-7 DAS) in tomato which were below EU-MRLs (0.5 mg/kg). The quantity of chlorpyrifos residue was above EU-MRLs up to 9 DAS with 0.012 mg/kg in cauliflower but in brinjal and tomato, the detected quantities were above EU-MRLs up to 7 DAS with 0.029 mg/kg and 0.017 mg/kg residue. No residue was detected from brinjal and tomato samples collected at 8 DAS. But in cauliflower, no residue was detected at 10 days after spray. So, brinjal, tomato and cauliflower can be harvested safely at 4 DAS and 5 DAS for cypermethrin and in case of chlorpyrifos it was 8 DAS in brinjal and tomato and 10 DAS in cauliflower.\u0000Asian Australas. J. Biosci. Biotechnol. 2021, 6 (2), 60-67","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"216 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122384783","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}
Pub Date : 2021-07-18DOI: 10.3329/AAJBB.V6I1.54877
Jowel Rana, Md Anwar Hossain, Dipok Kumar Sarkar, Md Ashraful Alom, S. Sarkar, Md. Hafizur Rahman, M. A. Islam, M. Islam
The present study was conducted to assess the feasibility of hydrogen peroxide (H2O2) for milk preservation and also to investigate the effects of H2O2 on growth of bacteria population in milk. Milk samples were collected from Bangladesh Agricultural University dairy farm and preserved with 0.12% H2O2 of 10% concentration on the basis of volume of milk and milk without H2O2 addition treated as control sample. Parameters used to monitor the shelf life of milk were organoleptic and chemical tests. All milk samples were kept in glass container at room temperature (28-31°C) in the laboratory. Organoleptic parameters (color, flavor, texture, taste) and chemical tests (acidity %, COB test and pH) were done every one hour interval until spoilage. Standard Plate Count (SPC) of the samples was done two times, initially and after spoilage of milk. Acidity% increased gradually in all sample but this increase was rapid in control sample than H2O2 treated sample. From COB test it was found that raw milk sample gave positive result at 10th hour but 0.12% H2O2 treated sample (after 20 min of milking ) and 0.12% H2O2 treated sample (after 3 hrs. of milking ) gave positive result 14 and 15th hour respectively. From the result it was observed that shelf life of milk with H2O2 increased. From the SPC result it was found that the bacterial growth rate is very high in control milk sample compare to H2O2 treated milk sample. Significant difference (p<0.01 was found in case of bacterial growth rate of the milk samples. The results of this experiment indicated that H2O2 be used as an effective preservative for prolonging milk preservation. So H2O2 can be used as an effective milk preservative for prolonging milk storage in environmental condition. Asian Australas. J. Biosci. Biotechnol. 2021, 6 (1), 19-25
{"title":"Effect of hydrogen peroxide (H2O2) on shelf life and bacterial population of raw milk","authors":"Jowel Rana, Md Anwar Hossain, Dipok Kumar Sarkar, Md Ashraful Alom, S. Sarkar, Md. Hafizur Rahman, M. A. Islam, M. Islam","doi":"10.3329/AAJBB.V6I1.54877","DOIUrl":"https://doi.org/10.3329/AAJBB.V6I1.54877","url":null,"abstract":"The present study was conducted to assess the feasibility of hydrogen peroxide (H2O2) for milk preservation and also to investigate the effects of H2O2 on growth of bacteria population in milk. Milk samples were collected from Bangladesh Agricultural University dairy farm and preserved with 0.12% H2O2 of 10% concentration on the basis of volume of milk and milk without H2O2 addition treated as control sample. Parameters used to monitor the shelf life of milk were organoleptic and chemical tests. All milk samples were kept in glass container at room temperature (28-31°C) in the laboratory. Organoleptic parameters (color, flavor, texture, taste) and chemical tests (acidity %, COB test and pH) were done every one hour interval until spoilage. Standard Plate Count (SPC) of the samples was done two times, initially and after spoilage of milk. Acidity% increased gradually in all sample but this increase was rapid in control sample than H2O2 treated sample. From COB test it was found that raw milk sample gave positive result at 10th hour but 0.12% H2O2 treated sample (after 20 min of milking ) and 0.12% H2O2 treated sample (after 3 hrs. of milking ) gave positive result 14 and 15th hour respectively. From the result it was observed that shelf life of milk with H2O2 increased. From the SPC result it was found that the bacterial growth rate is very high in control milk sample compare to H2O2 treated milk sample. Significant difference (p<0.01 was found in case of bacterial growth rate of the milk samples. The results of this experiment indicated that H2O2 be used as an effective preservative for prolonging milk preservation. So H2O2 can be used as an effective milk preservative for prolonging milk storage in environmental condition. \u0000Asian Australas. J. Biosci. Biotechnol. 2021, 6 (1), 19-25","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127542779","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}
Pub Date : 2021-07-18DOI: 10.3329/AAJBB.V6I1.54878
M. Hasan, Shariot Ullah, A. Saha, M. M. Amin
Different modeling concepts, a simple (black-box) to a fully distributed modeling (white-box), were used to develop a rainfall-runoff model based on the watershed characteristics to estimate runoff at the watershed outlet. A conceptual (grey-box) model is usually a balance between the black-box and white-box model. In this study, three grey-box models were developed by varying model structures for a karst watershed. The performance of the grey-box models was evaluated and compared with a semi-distributed type (white-box) model that was developed using the Soil and Water Assessment Tool in a previous study. The evaluation was carried out using goodness-of-fit statistics and extreme flow analysis using WETSPRO (Water Engineering Time Series Processing tool). Nash-Sutcliffe efficiencies (NSE) of the grey-box models were from 0.39 to 0.77 in the calibration period and from 0.30 to 0.61 in the validation period. However, the white-box model performed better in terms of NSE but has a higher bias. The best grey-box model performed better in simulating extreme flow, whereas the white-box (SWAT) model adequately simulated daily flows. Asian Australas. J. Biosci. Biotechnol. 2021, 6 (1), 26-39
{"title":"Comparing the performances of multiple rainfall-runoff models of a karst watershed","authors":"M. Hasan, Shariot Ullah, A. Saha, M. M. Amin","doi":"10.3329/AAJBB.V6I1.54878","DOIUrl":"https://doi.org/10.3329/AAJBB.V6I1.54878","url":null,"abstract":"Different modeling concepts, a simple (black-box) to a fully distributed modeling (white-box), were used to develop a rainfall-runoff model based on the watershed characteristics to estimate runoff at the watershed outlet. A conceptual (grey-box) model is usually a balance between the black-box and white-box model. In this study, three grey-box models were developed by varying model structures for a karst watershed. The performance of the grey-box models was evaluated and compared with a semi-distributed type (white-box) model that was developed using the Soil and Water Assessment Tool in a previous study. The evaluation was carried out using goodness-of-fit statistics and extreme flow analysis using WETSPRO (Water Engineering Time Series Processing tool). Nash-Sutcliffe efficiencies (NSE) of the grey-box models were from 0.39 to 0.77 in the calibration period and from 0.30 to 0.61 in the validation period. However, the white-box model performed better in terms of NSE but has a higher bias. The best grey-box model performed better in simulating extreme flow, whereas the white-box (SWAT) model adequately simulated daily flows. \u0000Asian Australas. J. Biosci. Biotechnol. 2021, 6 (1), 26-39","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131496044","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}
Pub Date : 2021-07-18DOI: 10.3329/AAJBB.V6I1.54876
SM Tanvir Reza, W. Ansari, Robiul Karim, A. Anower, F. I. Rume
Milk is a nutrient-rich liquid food for human and animals. However, owing to its complex biochemical structure and high water activity, it serves as an outstanding microorganism growth medium under suitable conditions. People in Bangladesh's coastal areas have a lifestyle and tradition that includes drinking raw milk for nutrition or as an energy drink, which presents a health risk to them. The present cross-sectional study was carried out to determine the reasons for drinking raw milk in coastal areas, as well as the public health impact of doing so. A total of 100 respondents were interviewed and subsequently, milk samples were collected for quality testing through methylene blue reduction test (MBRT). Among 100 respondent 70 were consumers and 30 were farmers. Results showed that the samples of farmers were better than that of consumers. The majority of raw milk consumers were male who thought raw milk was more nutritious than heat-treated milk. Furthermore, the majority of them were professionally engaged in farming. Both consumers and farmers had less educational qualifications, managed their cattle in dirty environments, practiced extensive grazing system on communal grazing areas and around one fourth of them vaccinated their animals. Furthermore, the findings revealed that 40% of respondents were between the ages of 35 and 45, with 62% reporting no health complications as a result of drinking raw milk and the remainder reporting mainly gastrointestinal problems. According to the findings of this report, the quality of raw cow milk was poor; unhygienic practices and poor animal husbandry at farm level predisposed farmers, consumers and the public to risk of contracting milk-borne infections and associated bacterial resistances. It is recommended that veterinarians, extension officers and all stakeholders should play their roles in ensuring safe quality milk supply to consumers. Asian Australas. J. Biosci. Biotechnol. 2021, 6 (1), 10-18
{"title":"Tradition of raw milk consumption and its health impact among people living in the coastal regions of Bangladesh","authors":"SM Tanvir Reza, W. Ansari, Robiul Karim, A. Anower, F. I. Rume","doi":"10.3329/AAJBB.V6I1.54876","DOIUrl":"https://doi.org/10.3329/AAJBB.V6I1.54876","url":null,"abstract":"Milk is a nutrient-rich liquid food for human and animals. However, owing to its complex biochemical structure and high water activity, it serves as an outstanding microorganism growth medium under suitable conditions. People in Bangladesh's coastal areas have a lifestyle and tradition that includes drinking raw milk for nutrition or as an energy drink, which presents a health risk to them. The present cross-sectional study was carried out to determine the reasons for drinking raw milk in coastal areas, as well as the public health impact of doing so. A total of 100 respondents were interviewed and subsequently, milk samples were collected for quality testing through methylene blue reduction test (MBRT). Among 100 respondent 70 were consumers and 30 were farmers. Results showed that the samples of farmers were better than that of consumers. The majority of raw milk consumers were male who thought raw milk was more nutritious than heat-treated milk. Furthermore, the majority of them were professionally engaged in farming. Both consumers and farmers had less educational qualifications, managed their cattle in dirty environments, practiced extensive grazing system on communal grazing areas and around one fourth of them vaccinated their animals. Furthermore, the findings revealed that 40% of respondents were between the ages of 35 and 45, with 62% reporting no health complications as a result of drinking raw milk and the remainder reporting mainly gastrointestinal problems. According to the findings of this report, the quality of raw cow milk was poor; unhygienic practices and poor animal husbandry at farm level predisposed farmers, consumers and the public to risk of contracting milk-borne infections and associated bacterial resistances. It is recommended that veterinarians, extension officers and all stakeholders should play their roles in ensuring safe quality milk supply to consumers. \u0000Asian Australas. J. Biosci. Biotechnol. 2021, 6 (1), 10-18","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"462 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123278932","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}
Pub Date : 2021-07-18DOI: 10.3329/AAJBB.V6I1.54879
Nilofa Eashmen, M. Arif, B. Sarker, M. R. Akter, S. Kabir
Vibrio cholerae is a major etiological agent of human diarrhoea and has become epidemic across the world in the recent past. A cross-sectional study was conducted to assess the prevalence of V. cholerae from dairy excreta along with antimicrobial resistant status of the isolates. A total 50 samples were collected from 50 different household manure pit located at Bangladesh Agriculture University (BAU) surrounding area, Mymensingh. Alkaline peptone water was used for enrichment of the samples followed by inoculation onto thiosulfate citrate bile salt sucrose (TCBS) agar media for the isolation of Vibrio spp., which were further confirmed via Vibrio genus specific molecular assay. Biochemical tests were performed to identify V. cholerae from the isolates of Vibrio spp. Out of 50 samples 17 (34%) were confirmed as Vibrio spp. as they produced characteristic yellow colonies on TCBS agar and had found to possess recombinase A gene that confirmed the identity of Vibrio spp. From this 17 Vibrio isolates, 6 (12% in total from 50 samples) were identified as V. cholerae based on different biochemical tests. All the isolates fermented glucose, maltose, sucrose and mannitol with the production of only acid. The isolates were positive in oxidase, gelatinase, methyl-red (MR) and indole test, but negative in case of voges-proskaure (VP) test. In antimicrobial susceptibility testing, V. cholerae isolates showed 100% sensitivity to gentamycin, chloramphenicol and tetracycline with moderate sensitivity to ciprofloxacin and co-trimoxazole. A high level of resistance was observed to ampicillin (100%) followed by moderate resistance to erythromycin and imipenem. In the present study about 33.33% (n = 2) of 6 isolated V. cholerae were found to be multidrug resistant (MDR) as they demonstrated resistant against 3 antimicrobial agents. The findings of this study substantiate the presence of MDR V. cholerae in the dairy excreta, which indicates the role of domestic animals to serve as a reservoir that might pose a health risk to human. Hygienic management of animal waste is needed to reduce the burden of human illness. Asian Australas. J. Biosci. Biotechnol. 2021, 6 (1), 40-49
{"title":"Prevalence and antimicrobial susceptibility patterns of Vibrio cholerae in dairy excreta","authors":"Nilofa Eashmen, M. Arif, B. Sarker, M. R. Akter, S. Kabir","doi":"10.3329/AAJBB.V6I1.54879","DOIUrl":"https://doi.org/10.3329/AAJBB.V6I1.54879","url":null,"abstract":"Vibrio cholerae is a major etiological agent of human diarrhoea and has become epidemic across the world in the recent past. A cross-sectional study was conducted to assess the prevalence of V. cholerae from dairy excreta along with antimicrobial resistant status of the isolates. A total 50 samples were collected from 50 different household manure pit located at Bangladesh Agriculture University (BAU) surrounding area, Mymensingh. Alkaline peptone water was used for enrichment of the samples followed by inoculation onto thiosulfate citrate bile salt sucrose (TCBS) agar media for the isolation of Vibrio spp., which were further confirmed via Vibrio genus specific molecular assay. Biochemical tests were performed to identify V. cholerae from the isolates of Vibrio spp. Out of 50 samples 17 (34%) were confirmed as Vibrio spp. as they produced characteristic yellow colonies on TCBS agar and had found to possess recombinase A gene that confirmed the identity of Vibrio spp. From this 17 Vibrio isolates, 6 (12% in total from 50 samples) were identified as V. cholerae based on different biochemical tests. All the isolates fermented glucose, maltose, sucrose and mannitol with the production of only acid. The isolates were positive in oxidase, gelatinase, methyl-red (MR) and indole test, but negative in case of voges-proskaure (VP) test. In antimicrobial susceptibility testing, V. cholerae isolates showed 100% sensitivity to gentamycin, chloramphenicol and tetracycline with moderate sensitivity to ciprofloxacin and co-trimoxazole. A high level of resistance was observed to ampicillin (100%) followed by moderate resistance to erythromycin and imipenem. In the present study about 33.33% (n = 2) of 6 isolated V. cholerae were found to be multidrug resistant (MDR) as they demonstrated resistant against 3 antimicrobial agents. The findings of this study substantiate the presence of MDR V. cholerae in the dairy excreta, which indicates the role of domestic animals to serve as a reservoir that might pose a health risk to human. Hygienic management of animal waste is needed to reduce the burden of human illness. \u0000Asian Australas. J. Biosci. Biotechnol. 2021, 6 (1), 40-49","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122825444","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}
Pub Date : 2021-07-18DOI: 10.3329/AAJBB.V6I1.54875
H. Khatun, Shakila Faruqe, G. Mostafa
Two hundred and sixteen 10 weeks of age hilly chickens were used to determine the effects of dietary energy and protein level on growth performance, carcass characteristics and meat quality. The chicks were randomly allotted in to 3×3 factorial in a completely randomize design. Three levels of energy (2600, 2700 and 2800 ME kcal/kg) and three levels of dietary proteins (16, 17 and 18% CP) were offered ad libitum to the chicks from 10-16 weeks of age. There were no significant interaction effect between dietary protein and energy levels in the diets. At 10-16 weeks of age hilly chickens fed with the medium protein diet (17% CP) showed shortened feed intake (p<0.001) but FCR found better in 16% CP diet. Dietary protein levels higher than 16% CP did not show any significant effect on growth performance. However hilly chicken fed with lower protein diet converted protein to body weight and body weight gain more efficiently than those fed higher protein diets. Dietary energy contents of 2600, 2700 and 2800 ME kcal/kg did not affect the growth performance of hilly chicken except ME, CP intake and protein conversion ratio. ME and CP intake was increased with increasing dietary ME and CP levels (p<0.000). Protein utilization was better (p<0.05) in higher (2800 ME kcal/kg) and medium (2700 ME kcal/kg) ME level diet. L*, a* and b* of breast meat was not affected by dietary ME and CP (p>0.05). Dietary energy and protein level did not significantly (p>0.05) affect the drip loss, cooking loss and pH of breast meat between the treatments. Based on the data of growth performance, carcass characteristics and meat quality, the optimal dietary ME requirement of hilly chicken from 10-16 weeks of age is 2800 ME kcal/kg and the CP requirement is 16%. Asian Australas. J. Biosci. Biotechnol. 2021, 6 (1), 1-9
{"title":"Effects of different dietary energy and protein levels on the performance and carcass characteristics of native hilly chicken during growing phase in confinement","authors":"H. Khatun, Shakila Faruqe, G. Mostafa","doi":"10.3329/AAJBB.V6I1.54875","DOIUrl":"https://doi.org/10.3329/AAJBB.V6I1.54875","url":null,"abstract":"Two hundred and sixteen 10 weeks of age hilly chickens were used to determine the effects of dietary energy and protein level on growth performance, carcass characteristics and meat quality. The chicks were randomly allotted in to 3×3 factorial in a completely randomize design. Three levels of energy (2600, 2700 and 2800 ME kcal/kg) and three levels of dietary proteins (16, 17 and 18% CP) were offered ad libitum to the chicks from 10-16 weeks of age. There were no significant interaction effect between dietary protein and energy levels in the diets. At 10-16 weeks of age hilly chickens fed with the medium protein diet (17% CP) showed shortened feed intake (p<0.001) but FCR found better in 16% CP diet. Dietary protein levels higher than 16% CP did not show any significant effect on growth performance. However hilly chicken fed with lower protein diet converted protein to body weight and body weight gain more efficiently than those fed higher protein diets. Dietary energy contents of 2600, 2700 and 2800 ME kcal/kg did not affect the growth performance of hilly chicken except ME, CP intake and protein conversion ratio. ME and CP intake was increased with increasing dietary ME and CP levels (p<0.000). Protein utilization was better (p<0.05) in higher (2800 ME kcal/kg) and medium (2700 ME kcal/kg) ME level diet. L*, a* and b* of breast meat was not affected by dietary ME and CP (p>0.05). Dietary energy and protein level did not significantly (p>0.05) affect the drip loss, cooking loss and pH of breast meat between the treatments. Based on the data of growth performance, carcass characteristics and meat quality, the optimal dietary ME requirement of hilly chicken from 10-16 weeks of age is 2800 ME kcal/kg and the CP requirement is 16%. \u0000Asian Australas. J. Biosci. Biotechnol. 2021, 6 (1), 1-9","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132660034","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}
Pub Date : 2020-08-31DOI: 10.3329/AAJBB.V5I2.53863
Jabir Al Mehedi, A. Shahriar, S. M. Fahim, Giass Uddin
The present study was conducted to know the fish drying activities, species used in fish drying and marketing channel of dried fish in Kuakata coast of Patuakhali district of Bangladesh. Sea fishes are mostly used for drying and dry fish producers collected raw fishes from arat (landing centers) (70%), fishermen (25%) and little amount from own capture (5%). It was found that 21 fish species were used for drying among them 3 species (Harpadon nehereus, Setipinna phasa, Lepturacanthus savala) were commonly used and other 18 species were fairly used. The peak fish drying season was observed at mid-October to mid-February (in Bengali Kartik to Magh). It was observed that the dry fish producers used salt to produce good quality dry fish and salt mixing rate is 2 kg salt for 30-35 kg raw fish. The duration of drying at normal weather condition is varied between 3-5 days depending on the size of fishes. After drying, the dried fishes were packed in either jute bags or polythene bags and stored at room temperature for marketing. About 95% dried fish products are sold in the wholesale market at Chittagong, Syedpur, and Dhaka and rest 5% sold to the local retail market. However, three (3) step dried fish marketing channels were observed in the study area. The producers sold their product at very lower price and it ranged between Tk. 120-3200 per Kg. The retail price of the dried fishes ranged from Tk. 200-3500 per Kg. The dry fish producers and intermediaries faced various problems like inadequate capital, natural calamities, lack of scientific knowledge and technology, price instability, lack of transport facilities, inadequate storage facilities, lack of physical marketing facilities and marketing information. Asian Australas. J. Biosci. Biotechnol. 2020, 5 (2), 48-59
{"title":"Status of drying fish, marketing channel and associated problems in the Kuakata coast of Patuakhali district, Bangladesh","authors":"Jabir Al Mehedi, A. Shahriar, S. M. Fahim, Giass Uddin","doi":"10.3329/AAJBB.V5I2.53863","DOIUrl":"https://doi.org/10.3329/AAJBB.V5I2.53863","url":null,"abstract":"The present study was conducted to know the fish drying activities, species used in fish drying and marketing channel of dried fish in Kuakata coast of Patuakhali district of Bangladesh. Sea fishes are mostly used for drying and dry fish producers collected raw fishes from arat (landing centers) (70%), fishermen (25%) and little amount from own capture (5%). It was found that 21 fish species were used for drying among them 3 species (Harpadon nehereus, Setipinna phasa, Lepturacanthus savala) were commonly used and other 18 species were fairly used. The peak fish drying season was observed at mid-October to mid-February (in Bengali Kartik to Magh). It was observed that the dry fish producers used salt to produce good quality dry fish and salt mixing rate is 2 kg salt for 30-35 kg raw fish. The duration of drying at normal weather condition is varied between 3-5 days depending on the size of fishes. After drying, the dried fishes were packed in either jute bags or polythene bags and stored at room temperature for marketing. About 95% dried fish products are sold in the wholesale market at Chittagong, Syedpur, and Dhaka and rest 5% sold to the local retail market. However, three (3) step dried fish marketing channels were observed in the study area. The producers sold their product at very lower price and it ranged between Tk. 120-3200 per Kg. The retail price of the dried fishes ranged from Tk. 200-3500 per Kg. The dry fish producers and intermediaries faced various problems like inadequate capital, natural calamities, lack of scientific knowledge and technology, price instability, lack of transport facilities, inadequate storage facilities, lack of physical marketing facilities and marketing information. \u0000Asian Australas. J. Biosci. Biotechnol. 2020, 5 (2), 48-59","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128340676","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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