Pub Date : 2018-11-29DOI: 10.3329/JESNR.V10I2.39029
J. Syeda
Dinajpur is the highest wheat producing northern district in Bangladesh and wheat is the second most essential cereal crop after rice in this country. This is much sensitive to climatic change. The main concern of this paper was to quantify the long-term effect of climate change on wheat production in Dinajpur district using multiple regression analysis technique taking several climatic variables for 1948-2004. The approximately significant effects were found for the climatic variables of average minimum temperature (tmn), average dry bulb temperature (td) and total rainfall (ttr) on wheat production. It may be reported that one percent increase in tmn increases the yield rate by about 2.62%, one percent increase in td decreases the yield rate by about 2.58% and one percent increase in ttr increases the yield rate by about 0.03%.J. Environ. Sci. & Natural Resources, 10(2): 157-162 2017
{"title":"Impact of Climate Change on Wheat Production in Dinajpur Region of Bangladesh: an Econometric Analysis","authors":"J. Syeda","doi":"10.3329/JESNR.V10I2.39029","DOIUrl":"https://doi.org/10.3329/JESNR.V10I2.39029","url":null,"abstract":"Dinajpur is the highest wheat producing northern district in Bangladesh and wheat is the second most essential cereal crop after rice in this country. This is much sensitive to climatic change. The main concern of this paper was to quantify the long-term effect of climate change on wheat production in Dinajpur district using multiple regression analysis technique taking several climatic variables for 1948-2004. The approximately significant effects were found for the climatic variables of average minimum temperature (tmn), average dry bulb temperature (td) and total rainfall (ttr) on wheat production. It may be reported that one percent increase in tmn increases the yield rate by about 2.62%, one percent increase in td decreases the yield rate by about 2.58% and one percent increase in ttr increases the yield rate by about 0.03%.J. Environ. Sci. & Natural Resources, 10(2): 157-162 2017","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81504355","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 : 2018-11-29DOI: 10.3329/JESNR.V10I2.39025
Md Meraj Uddin, Sarmin Akter, M. Uddin, Mtm Diganta
Water resources and rivers play a very important role in economy and agriculture. But due to climate change and improper management, water resources are losing the natural discharge capacity from upper stream. This study was under taken to find out the trends and variability of rainfall and discharge at two stations of the Kushiyara River. Rainfall and discharge data Daily time series data of stream flow or discharge at Sheola (1976 to 2007) and Sherpur (1982 to 2007) and observed discharge data in certain interval from 2008 to 2016 have been analyzed in this study. For trend analysis, Mann-Kendall Test (MK) and Sen’s Slope Estimator method were used as non-parametric test and relationship assessment was done by undertaking Pearson’s Coefficient of Correlation. Annual discharge at Sheola and Sherpur station showed downward trend and maximum discharge was found downward trend at both stations. In Mannkendall test and Sen’s Slope Estimator method showed downward trend in most cases. Climate change and improper land management may have influenced the present condition.J. Environ. Sci. & Natural Resources, 10(2): 121-132 2017
{"title":"Trend Analysis Variations and Relation Between Discharge and Rainfall: a Study on Kushiyara River","authors":"Md Meraj Uddin, Sarmin Akter, M. Uddin, Mtm Diganta","doi":"10.3329/JESNR.V10I2.39025","DOIUrl":"https://doi.org/10.3329/JESNR.V10I2.39025","url":null,"abstract":"Water resources and rivers play a very important role in economy and agriculture. But due to climate change and improper management, water resources are losing the natural discharge capacity from upper stream. This study was under taken to find out the trends and variability of rainfall and discharge at two stations of the Kushiyara River. Rainfall and discharge data Daily time series data of stream flow or discharge at Sheola (1976 to 2007) and Sherpur (1982 to 2007) and observed discharge data in certain interval from 2008 to 2016 have been analyzed in this study. For trend analysis, Mann-Kendall Test (MK) and Sen’s Slope Estimator method were used as non-parametric test and relationship assessment was done by undertaking Pearson’s Coefficient of Correlation. Annual discharge at Sheola and Sherpur station showed downward trend and maximum discharge was found downward trend at both stations. In Mannkendall test and Sen’s Slope Estimator method showed downward trend in most cases. Climate change and improper land management may have influenced the present condition.J. Environ. Sci. & Natural Resources, 10(2): 121-132 2017","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90165383","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 : 2018-11-29DOI: 10.3329/jesnr.v10i2.39009
Islam, J. Jahan, M. Mou, M. Kabir, M. Uddin
The study was conducted to investigate the physicochemical parameters and anionic constituents in water of the haor area of Karimganj during the period from October to December 2016. The water samples were collected from 3 different sampling stationsas St-1 (Bailabeel), St-2 (Ummabeel) and St-3 (Alkharabeel) for analyzing the temperature, electrical conductivity (EC), total dissolved solid (TDS), pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), alkalinity, hardness, fluoride (F-), chloride (Cl-), bromide (Br-), nitrite (NO2 -) , nitrate (NO3 -), and sulphate (SO4 2-) in water. The study also assessed the fish status of the Karimganjhaor area. The result of the study showed that the mean temperature (26.2 °C) of water was within the standard limit. The mean EC and TDS contents were 555 μS/cm and 526 mg/l, respectively which was satisfactory level for aquatic organisms. The mean DO (6.7 mg/l) content was favorable but BOD (2.7 mg/l) content indicated some extent of organic waste pollution. The mean pH and alkalinity were 7.30 and 338 mg/l, respectively indicated alkaline condition in haor water, and whereas hardness was 122 mg/l revealed that the water was suitable for fish production. The mean concentration of F-, Cl-, Br-, NO2 - , NO3 -, and SO4 2- were 0.35, 130.3, 0.16, 3.38, 34.84 and 85.60 mg/l, respectively depicted that the water were poorly improvised with these anionic constituents.J. Environ. Sci. & Natural Resources, 10(2): 19-27 2017
{"title":"Investigation of Water Quality and Fish Status of Karimganj Haor Area in Kishoreganj","authors":"Islam, J. Jahan, M. Mou, M. Kabir, M. Uddin","doi":"10.3329/jesnr.v10i2.39009","DOIUrl":"https://doi.org/10.3329/jesnr.v10i2.39009","url":null,"abstract":"The study was conducted to investigate the physicochemical parameters and anionic constituents in water of the haor area of Karimganj during the period from October to December 2016. The water samples were collected from 3 different sampling stationsas St-1 (Bailabeel), St-2 (Ummabeel) and St-3 (Alkharabeel) for analyzing the temperature, electrical conductivity (EC), total dissolved solid (TDS), pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), alkalinity, hardness, fluoride (F-), chloride (Cl-), bromide (Br-), nitrite (NO2 -) , nitrate (NO3 -), and sulphate (SO4 2-) in water. The study also assessed the fish status of the Karimganjhaor area. The result of the study showed that the mean temperature (26.2 °C) of water was within the standard limit. The mean EC and TDS contents were 555 μS/cm and 526 mg/l, respectively which was satisfactory level for aquatic organisms. The mean DO (6.7 mg/l) content was favorable but BOD (2.7 mg/l) content indicated some extent of organic waste pollution. The mean pH and alkalinity were 7.30 and 338 mg/l, respectively indicated alkaline condition in haor water, and whereas hardness was 122 mg/l revealed that the water was suitable for fish production. The mean concentration of F-, Cl-, Br-, NO2 - , NO3 -, and SO4 2- were 0.35, 130.3, 0.16, 3.38, 34.84 and 85.60 mg/l, respectively depicted that the water were poorly improvised with these anionic constituents.J. Environ. Sci. & Natural Resources, 10(2): 19-27 2017","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89880062","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 : 2018-11-29DOI: 10.3329/JESNR.V10I2.39028
M. Talukdar, Hossen, M. Baten
Thermal comfort is considered very important in aspects of risk assessment, summertime morbidity or in building designing. The present study applied Thom’s discomfort index (DI) to assess the trend of outdoor thermal discomfort in Mymensingh City during 2006-2015. It wasfound that December to February months was comparatively comfortable, DI values were typically <21 and therefore no people felt any discomfort in these months. On the other hand, under 50% population experienced discomfort during March and November months when discomfort valueswere ranged between 21- 24. From April to October months discomfort values varied from 25-27, which indicated thatover 50% population suffered from discomfort in this period. Though no extreme discomfort condition observed in Mymensingh city, the results revealed from June to September months most of the population suffered from severe discomfort in Mymensingh city due to the high air temperature, and high relative humidity.J. Environ. Sci. & Natural Resources, 10(2): 151-156 2017
{"title":"Trends of Outdoor Thermal Discomfort in Mymensingh: an Application of Thoms’ Discomfort index","authors":"M. Talukdar, Hossen, M. Baten","doi":"10.3329/JESNR.V10I2.39028","DOIUrl":"https://doi.org/10.3329/JESNR.V10I2.39028","url":null,"abstract":"Thermal comfort is considered very important in aspects of risk assessment, summertime morbidity or in building designing. The present study applied Thom’s discomfort index (DI) to assess the trend of outdoor thermal discomfort in Mymensingh City during 2006-2015. It wasfound that December to February months was comparatively comfortable, DI values were typically <21 and therefore no people felt any discomfort in these months. On the other hand, under 50% population experienced discomfort during March and November months when discomfort valueswere ranged between 21- 24. From April to October months discomfort values varied from 25-27, which indicated thatover 50% population suffered from discomfort in this period. Though no extreme discomfort condition observed in Mymensingh city, the results revealed from June to September months most of the population suffered from severe discomfort in Mymensingh city due to the high air temperature, and high relative humidity.J. Environ. Sci. & Natural Resources, 10(2): 151-156 2017","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"80 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72639521","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 : 2018-11-29DOI: 10.3329/JESNR.V10I2.39010
M. Mahashin, R. Roy
Climate-Smart Agriculture (CSA) is an integrative approach of increasing productivity, enhancing resilience, and minimizing greenhouse gas emissions. The study addresses four research questions: (I) How many agro-region based climate change hot spots are there in Bangladesh with specific reference to CSA, (II) what are the contribution of practices and technologies of CSA? (III) How institutional involvement promoting CSA practices and technologies? A mixed method, i.e. literature review, discussion with experts, gathering information from the DAE, was employed to carry out the study. Results indicate that farmers have been practicing CSA at a smaller-scale and investment on knowledge, learning and capacity development is a key means for a full-scale CSA implementation. Findings illustrate that broad types of practices and technologies have been addressing three intertwined challenges: ensuring food security, impacts of climate change on agriculture and agriculture’s impact on climate change. The government’s project-based endeavor of implementing CSA marks that they have been pledged to defeat the climatic risks in agriculture. Active initiative for mainstreaming CSA into national policies and programs are inadequate.J. Environ. Sci. & Natural Resources, 10(2): 29-37 2017
{"title":"Mapping Practices and Technologies of Climate-Smart Agriculture in Bangladesh","authors":"M. Mahashin, R. Roy","doi":"10.3329/JESNR.V10I2.39010","DOIUrl":"https://doi.org/10.3329/JESNR.V10I2.39010","url":null,"abstract":"Climate-Smart Agriculture (CSA) is an integrative approach of increasing productivity, enhancing resilience, and minimizing greenhouse gas emissions. The study addresses four research questions: (I) How many agro-region based climate change hot spots are there in Bangladesh with specific reference to CSA, (II) what are the contribution of practices and technologies of CSA? (III) How institutional involvement promoting CSA practices and technologies? A mixed method, i.e. literature review, discussion with experts, gathering information from the DAE, was employed to carry out the study. Results indicate that farmers have been practicing CSA at a smaller-scale and investment on knowledge, learning and capacity development is a key means for a full-scale CSA implementation. Findings illustrate that broad types of practices and technologies have been addressing three intertwined challenges: ensuring food security, impacts of climate change on agriculture and agriculture’s impact on climate change. The government’s project-based endeavor of implementing CSA marks that they have been pledged to defeat the climatic risks in agriculture. Active initiative for mainstreaming CSA into national policies and programs are inadequate.J. Environ. Sci. & Natural Resources, 10(2): 29-37 2017","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"261 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77145749","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 : 2018-11-29DOI: 10.3329/jesnr.v10i2.39014
M. Hoque, Pk Banik
This study was conducted to know the indoor environment, health and safety status towards the workers of different industries situated in Narayanganj under Kumudini Welfare Trust (KWT) of Bangladesh. The data were collected during the monthof March-April, 2016. Measurednoise level in different industries under KWT ranged from 71-90.5 dB. During the study, among all of the four industries highest level of noise was measured in Kumudini Jute Bailing and Warehouse Ltd. (90.5 dB) followed by Kumudini Garments Ltd. (78 dB). Indoor temperature in different industries under KWT ranged from 26.5°C-32°C. Highest level of temperature was measured in Kumudini Garments Ltd. (32°C) followed by Kumudini Handicraft Ltd. (30.5°C), Kumudini Pharma Ltd. (29.5°C) and Kumudini Jute Bailing and Warehouse Ltd. (26.5°C). During the observations, highest relative humidity was measured in Kumudini Garments Ltd. (19.5%) followed by Kumudini Pharma Ltd. (5.2%), Kumudini Handicraft Ltd. (2%) and Kumudini Jute Bailing and Warehouse Ltd. (1.2%). In this study, observed level of CO2 in the indoor environment of the study area ranged from - 0.2 to 0.45 %. All of the measured CO2 level is greater than standard concentration of 0.03%, except Kumudni Jute Bailing and Ware House. Based on our present clarifications there was no oxygen deficiency in the door environment of the industries under KWT.J. Environ. Sci. & Natural Resources, 10(2): 65-72 2017
{"title":"Indoor Environment Health and Safety Status in Industrial Sectors of Bangladesh: a Case Study on Industries under Kumudini Welfare Trust","authors":"M. Hoque, Pk Banik","doi":"10.3329/jesnr.v10i2.39014","DOIUrl":"https://doi.org/10.3329/jesnr.v10i2.39014","url":null,"abstract":"This study was conducted to know the indoor environment, health and safety status towards the workers of different industries situated in Narayanganj under Kumudini Welfare Trust (KWT) of Bangladesh. The data were collected during the monthof March-April, 2016. Measurednoise level in different industries under KWT ranged from 71-90.5 dB. During the study, among all of the four industries highest level of noise was measured in Kumudini Jute Bailing and Warehouse Ltd. (90.5 dB) followed by Kumudini Garments Ltd. (78 dB). Indoor temperature in different industries under KWT ranged from 26.5°C-32°C. Highest level of temperature was measured in Kumudini Garments Ltd. (32°C) followed by Kumudini Handicraft Ltd. (30.5°C), Kumudini Pharma Ltd. (29.5°C) and Kumudini Jute Bailing and Warehouse Ltd. (26.5°C). During the observations, highest relative humidity was measured in Kumudini Garments Ltd. (19.5%) followed by Kumudini Pharma Ltd. (5.2%), Kumudini Handicraft Ltd. (2%) and Kumudini Jute Bailing and Warehouse Ltd. (1.2%). In this study, observed level of CO2 in the indoor environment of the study area ranged from - 0.2 to 0.45 %. All of the measured CO2 level is greater than standard concentration of 0.03%, except Kumudni Jute Bailing and Ware House. Based on our present clarifications there was no oxygen deficiency in the door environment of the industries under KWT.J. Environ. Sci. & Natural Resources, 10(2): 65-72 2017","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"81 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88209976","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 : 2018-11-29DOI: 10.3329/jesnr.v10i2.39027
Z. Haque, T. Jinan
The present study aims at investigating into the existing land tenure system and its relationship with credit at Trishal Upazila of Mymensingh district. Keeping in view the objectives, 70 samples were randomly selected. The respondents have taken loan from institutional, semi institutional and non-institutional sources of credit for producing crops. The study reveals that the absentee land owner and part operator in the area have got more access to institutional sources of credit because of their ability to offer land as security. Tenants on the other hand were found to have no loan at all from the BKB because of their inability to offer collateral against loan. The tenant farmers however, were found to have access to semi institutional sources like GB and BRAC. The respondents therefore, need not be so dependent at present on money lenders and non-institutional sources of credit because of institutional and semi-institutional network present close to the study area. A lion’s share of loaned money obtained has been productively utilized by the sampled respondents irrespective of tenure categories implying the borrower’s positive attitudes towards productive utilization.J. Environ. Sci. & Natural Resources, 10(2): 143-150 2017
{"title":"Land Tenure and Credit - a Study in Selected Areas of Mymensingh","authors":"Z. Haque, T. Jinan","doi":"10.3329/jesnr.v10i2.39027","DOIUrl":"https://doi.org/10.3329/jesnr.v10i2.39027","url":null,"abstract":"The present study aims at investigating into the existing land tenure system and its relationship with credit at Trishal Upazila of Mymensingh district. Keeping in view the objectives, 70 samples were randomly selected. The respondents have taken loan from institutional, semi institutional and non-institutional sources of credit for producing crops. The study reveals that the absentee land owner and part operator in the area have got more access to institutional sources of credit because of their ability to offer land as security. Tenants on the other hand were found to have no loan at all from the BKB because of their inability to offer collateral against loan. The tenant farmers however, were found to have access to semi institutional sources like GB and BRAC. The respondents therefore, need not be so dependent at present on money lenders and non-institutional sources of credit because of institutional and semi-institutional network present close to the study area. A lion’s share of loaned money obtained has been productively utilized by the sampled respondents irrespective of tenure categories implying the borrower’s positive attitudes towards productive utilization.J. Environ. Sci. & Natural Resources, 10(2): 143-150 2017","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91093210","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 : 2018-11-29DOI: 10.3329/JESNR.V10I2.39033
S. Adnan, S. Bhattacharjee, S. Akter, D. Chakraborty, M. Ahmad
The study was done to investigate the chemical constituents of a developed canned pineapple (Ananas comosus) product and to evaluate the microbiological quality of the product. A water bath canner and quart glass jars equipped with cap having top rubber were used for canning of pineapple (A. comosus). The thermal processing was done for the canning of pineapple. The raw fresh pineapple and canned pineapple were analyzed for their moisture content, ash, fat, crude fiber and protein contents. The moisture content, ash content, fat, crude fiber, protein content of fresh pineapple were 81.5%, 0.38%, 0.2%, 1.4% and 0.5%. The moisture content, ash content, fat, crude fiber and protein content of canned pineapple were 70%, 0.35%, 0.4%, 1.9% and 1.5% respectively. These Chemical constituents of the canned pineapple were almost similar with the raw fresh pineapple except the crude fiber and protein. The yeast and mould present in the product were also counted by using PDA (potato dextrose agar). The yeast and mould count for the product was within the consumer safety limit.J. Environ. Sci. & Natural Resources, 10(2): 183-187 2017
{"title":"Development and Quality Evaluation of Canned Pineapple","authors":"S. Adnan, S. Bhattacharjee, S. Akter, D. Chakraborty, M. Ahmad","doi":"10.3329/JESNR.V10I2.39033","DOIUrl":"https://doi.org/10.3329/JESNR.V10I2.39033","url":null,"abstract":"The study was done to investigate the chemical constituents of a developed canned pineapple (Ananas comosus) product and to evaluate the microbiological quality of the product. A water bath canner and quart glass jars equipped with cap having top rubber were used for canning of pineapple (A. comosus). The thermal processing was done for the canning of pineapple. The raw fresh pineapple and canned pineapple were analyzed for their moisture content, ash, fat, crude fiber and protein contents. The moisture content, ash content, fat, crude fiber, protein content of fresh pineapple were 81.5%, 0.38%, 0.2%, 1.4% and 0.5%. The moisture content, ash content, fat, crude fiber and protein content of canned pineapple were 70%, 0.35%, 0.4%, 1.9% and 1.5% respectively. These Chemical constituents of the canned pineapple were almost similar with the raw fresh pineapple except the crude fiber and protein. The yeast and mould present in the product were also counted by using PDA (potato dextrose agar). The yeast and mould count for the product was within the consumer safety limit.J. Environ. Sci. & Natural Resources, 10(2): 183-187 2017","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83403444","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 : 2018-11-29DOI: 10.3329/JESNR.V10I2.39017
Islam, A. Akhtar, M. Hossain, MF Rahman, S. Hossain
The study was conducted on 244 crossbred cows of CCBS Savar, Dhaka to evaluate the effect of different genetic groups on their lifetime performance of various reproductive traits using twenty years data. Data were accumulated from a prescribed data sheet maintained by Central Cattle Breeding Station, Dhaka. Genetic groups for this experiment were (LF), (LJ), (LH x F), (LF x LF) and (LJ x LJ). The studied parameters were age at puberty, service per conception, post-partum heat period, calving interval, total number of calving in lifetime. ANOVA showed that genetic groups had a significant effect on age at puberty, post-partum heat period, total number of calving in lifetime and calving interval (P<0.05). From result it was found that earliest age at puberty were in L x F (749.27±99.01), service per conception, postpartum heat period was lower in L x F (1.60±0.19 and (145.75±94.44 days respectively). Calving interval was lower in L x J (411.18±136.87 days) and almost similar results were obtained for L x F (432.26±96.26 days). Total number of calving in lifetime were observed higher in (LH x F) with mean of 1468.30±198.58 days.J. Environ. Sci. & Natural Resources, 10(2): 87-94 2017
{"title":"Reproductive Performance and Repeatability Estimation of Some Traits of Crossbred Cows in Savar Dairy Farm","authors":"Islam, A. Akhtar, M. Hossain, MF Rahman, S. Hossain","doi":"10.3329/JESNR.V10I2.39017","DOIUrl":"https://doi.org/10.3329/JESNR.V10I2.39017","url":null,"abstract":"The study was conducted on 244 crossbred cows of CCBS Savar, Dhaka to evaluate the effect of different genetic groups on their lifetime performance of various reproductive traits using twenty years data. Data were accumulated from a prescribed data sheet maintained by Central Cattle Breeding Station, Dhaka. Genetic groups for this experiment were (LF), (LJ), (LH x F), (LF x LF) and (LJ x LJ). The studied parameters were age at puberty, service per conception, post-partum heat period, calving interval, total number of calving in lifetime. ANOVA showed that genetic groups had a significant effect on age at puberty, post-partum heat period, total number of calving in lifetime and calving interval (P<0.05). From result it was found that earliest age at puberty were in L x F (749.27±99.01), service per conception, postpartum heat period was lower in L x F (1.60±0.19 and (145.75±94.44 days respectively). Calving interval was lower in L x J (411.18±136.87 days) and almost similar results were obtained for L x F (432.26±96.26 days). Total number of calving in lifetime were observed higher in (LH x F) with mean of 1468.30±198.58 days.J. Environ. Sci. & Natural Resources, 10(2): 87-94 2017","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86639546","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 : 2018-11-29DOI: 10.3329/jesnr.v10i2.39018
A. Sarker, Amin, Mostafa A. R. Hossain, Ali, M. A. Hashem
The experiment was conducted to investigate the present status and potentialities of organic sheep production in Lakshmipur district of Bangladesh. Data were collected through an interview schedule personally from 30 respondents in 3 villages of Ramgoti Upazila who were involved in sheep production. Parameter studied were origin, feeds and fodder, breeding, health care, living condition of livestock and factors related to organic sheep production. All sheep was indigenous. 60 per cent farmers used roadside grass and 40% cultivated and roadside grass. Most of the farmers used mixed feed which was bought from local market and 17% farmers used vitamin mineral supplementation. All farmers used natural breeding. About 80, 80 and 83% farmers practiced vaccination, de-worming and grooming, respectively. About 13% farmers used hormone, antibiotic and growth promoter and only 33% farmers remove sick or injured animal from healthy stock. All farmers allowed access to outdoor and pasturing during winter season and none reared male and female sheep separately. Farmers did not keep and kept their livestock record were 90 and 10%, respectively. Most of the farmers were middle aged categories (53%) and education level of farmers of primary, secondary and higher secondary were 63, 30 and 7%, respectively.J. Environ. Sci. & Natural Resources, 10(2): 95-103 2017
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