Subjects -> AGRICULTURE (Total: 981 journals)
    - AGRICULTURAL ECONOMICS (93 journals)
    - AGRICULTURE (680 journals)
    - CROP PRODUCTION AND SOIL (120 journals)
    - DAIRYING AND DAIRY PRODUCTS (30 journals)
    - POULTRY AND LIVESTOCK (58 journals)

AGRICULTURE (680 journals)            First | 1 2 3 4     

Showing 201 - 263 of 263 Journals sorted alphabetically
Economic Affairs     Hybrid Journal   (Followers: 8)
Economic and Industrial Democracy     Hybrid Journal   (Followers: 12)
Economic Bulletin     Hybrid Journal   (Followers: 6)
Economic Policy     Hybrid Journal   (Followers: 51)
Economic Record     Hybrid Journal   (Followers: 7)
Economics of Disasters and Climate Change     Hybrid Journal   (Followers: 13)
Egyptian Journal of Biological Pest Control     Open Access  
Emirates Journal of Food and Agriculture     Open Access   (Followers: 1)
Empirical Economics     Hybrid Journal   (Followers: 16)
Encuentro     Open Access  
Energy Nexus     Open Access  
Ensaios e Ciência : Ciências Biológicas, Agrárias e da Saúde     Open Access  
Environment and Development Economics     Hybrid Journal   (Followers: 43)
Eppo Bulletin     Hybrid Journal   (Followers: 1)
Ethiopian Journal of Agricultural Sciences     Open Access  
Ethiopian Journal of Science and Technology     Open Access  
Ethiopian Journal of Sciences and Sustainable Development     Open Access  
Ethology     Hybrid Journal   (Followers: 11)
EU Agrarian Law     Open Access   (Followers: 4)
Euphytica     Hybrid Journal   (Followers: 8)
Eurochoices     Hybrid Journal   (Followers: 1)
European Journal of Agronomy     Hybrid Journal   (Followers: 12)
European Journal of American Culture     Hybrid Journal  
European Journal of Health Economics     Hybrid Journal   (Followers: 24)
European Journal of Law and Economics     Hybrid Journal   (Followers: 50)
European Review of Agricultural Economics     Hybrid Journal   (Followers: 12)
EvoDevo     Open Access   (Followers: 4)
Farm Engineering and Automation Technology Journal     Open Access  
Fave : Sección ciencias agrarias     Open Access  
Fitosanidad     Open Access  
Florea : Jurnal Biologi dan Pembelajarannya     Open Access  
Folia Horticulturae     Open Access   (Followers: 1)
Folia Oecologica     Open Access  
Food and Agricultural Immunology     Open Access   (Followers: 2)
Food and Ecological Systems Modelling Journal     Open Access  
Food and Energy Security     Open Access   (Followers: 3)
Food and Environment Safety     Open Access   (Followers: 3)
Food Biotechnology     Hybrid Journal   (Followers: 8)
Food Economics - Acta Agriculturae Scandinavica, Section C     Hybrid Journal   (Followers: 1)
Food New Zealand     Full-text available via subscription   (Followers: 1)
Food Policy     Hybrid Journal   (Followers: 36)
Forest@ : Journal of Silviculture and Forest Ecology     Open Access  
Forestry Chronicle     Full-text available via subscription   (Followers: 9)
Fronteiras : Journal of Social, Technological and Environmental Science     Open Access  
Frontiers in Science     Open Access   (Followers: 1)
Fundamental and Applied Agriculture     Open Access  
Future Foods     Open Access   (Followers: 2)
Future of Food : Journal on Food, Agriculture and Society     Open Access   (Followers: 19)
Gema Agro     Open Access  
Geoderma     Hybrid Journal   (Followers: 8)
Ghana Journal of Agricultural Science     Full-text available via subscription   (Followers: 2)
Global Approaches to Extension Practice : A Journal of Agricultural Extension     Full-text available via subscription   (Followers: 1)
Global Economic Review     Hybrid Journal   (Followers: 8)
Global Journal of Agricultural Sciences     Full-text available via subscription  
Global Journal of Biology, Agriculture & Health Sciences     Open Access  
Gontor Agrotech Science Journal     Open Access  
Hacquetia     Open Access  
Health Economics, Policy and Law     Hybrid Journal   (Followers: 26)
Heliyon     Open Access  
Hereditas     Open Access   (Followers: 1)
Horticultural Studies     Full-text available via subscription  
Huria : Journal of the Open University of Tanzania     Full-text available via subscription   (Followers: 2)
IDESIA : Revista de Agricultura en Zonas Áridas     Open Access  
Indian Horticulture     Full-text available via subscription   (Followers: 8)
Indian Journal of Agricultural Sciences     Open Access   (Followers: 12)
Indian Journal of Animal Nutrition     Open Access  
Indian Journal of Extension Education     Open Access   (Followers: 1)
Indian Journal of Horticulture     Open Access  
Indian Journal of Traditional Knowledge (IJTK)     Open Access   (Followers: 1)
Indonesian Journal of Agricultural Science     Open Access   (Followers: 2)
Information Processing in Agriculture     Open Access  
Innovare Journal of Agricultural Science     Open Access   (Followers: 1)
Innovations in Agriculture     Open Access  
Interciencia     Open Access  
International Advances in Economic Research     Hybrid Journal   (Followers: 6)
International Dairy Journal     Hybrid Journal   (Followers: 4)
International Journal for Parasitology : Parasites and Wildlife     Open Access   (Followers: 2)
International Journal of Agricultural and Life Sciences     Open Access  
International Journal of Agricultural Extension     Open Access   (Followers: 1)
International Journal of Agricultural Management and Development     Open Access   (Followers: 2)
International Journal of Agricultural Research     Open Access   (Followers: 3)
International Journal of Agricultural Research, Innovation and Technology     Open Access   (Followers: 3)
International Journal of Agricultural Resources, Governance and Ecology     Hybrid Journal   (Followers: 2)
International Journal of Agricultural Science and Food Technology     Open Access  
International Journal of Agricultural Sustainability     Hybrid Journal   (Followers: 12)
International Journal of Agriculture and Forestry     Open Access   (Followers: 6)
International Journal of Agriculture Innovation, Technology and Globalisation     Hybrid Journal  
International Journal of Agriculture, Environment and Food Sciences     Open Access   (Followers: 1)
International Journal of Agriculture, Forestry and Life Sciences     Open Access  
International Journal of Agronomy     Open Access   (Followers: 5)
International Journal of Applied Agriculture and Apiculture Research     Open Access   (Followers: 3)
International Journal of Dairy Science     Open Access   (Followers: 4)
International Journal of Dairy Technology     Hybrid Journal   (Followers: 2)
International Journal of Food Science and Agriculture     Open Access   (Followers: 3)
International Journal of Fruit Science     Open Access  
International Journal of Green Economics     Hybrid Journal   (Followers: 6)
International Journal of Hydrology Science and Technology     Hybrid Journal   (Followers: 6)
International Journal of Intercultural Relations     Hybrid Journal   (Followers: 16)
International Journal of Pest Management     Hybrid Journal   (Followers: 2)
International Journal of Postharvest Technology and Innovation     Hybrid Journal   (Followers: 2)
International Journal of Poultry Science     Open Access   (Followers: 4)
International Journal of Recycling of Organic Waste in Agriculture     Open Access   (Followers: 1)
International Journal of Secondary Metabolite     Open Access  
International Journal of Social Economics     Hybrid Journal   (Followers: 7)
International Journal of Sustainable Agricultural Management and Informatics     Hybrid Journal   (Followers: 1)
International Journal of the Economics of Business     Hybrid Journal   (Followers: 1)
International Journal of Tropical Veterinary and Biomedical Research     Open Access  
International Journal of Vegetable Science     Hybrid Journal  
International Journal on Food, Agriculture and Natural Resources : IJ-FANRES     Open Access  
International Letters of Natural Sciences     Open Access  
International Multidisciplinary Research Journal     Open Access  
International Review of Applied Economics     Hybrid Journal   (Followers: 6)
International Review of Economics     Hybrid Journal   (Followers: 4)
International Scientific Journal of Engineering and Technology (ISJET)     Open Access  
Invertebrate Reproduction & Development     Hybrid Journal   (Followers: 5)
Iranian Journal of Applied Animal Science     Open Access   (Followers: 1)
Irrigation and Drainage     Hybrid Journal   (Followers: 12)
Irrigation Australia: The Official Journal of Irrigation Australia     Full-text available via subscription   (Followers: 1)
Italian Journal of Agronomy     Open Access   (Followers: 4)
Journal (Australian Native Plants Society. Canberra Region)     Full-text available via subscription  
Journal de la Recherche Scientifique de l'Universite de Lome     Full-text available via subscription  
Journal für Kulturpflanzen     Open Access  
Journal of Advances in Agriculture     Open Access   (Followers: 5)
Journal of Agrarian Change     Hybrid Journal   (Followers: 3)
Journal of Agricultural & Food Information     Hybrid Journal   (Followers: 5)
Journal of Agricultural and Environmental Ethics     Hybrid Journal   (Followers: 8)
Journal of Agricultural and Food Chemistry     Hybrid Journal   (Followers: 9)
Journal of Agricultural and Marine Sciences     Open Access  
Journal of Agricultural Chemistry and Environment     Open Access   (Followers: 3)
Journal of Agricultural Economics     Hybrid Journal   (Followers: 31)
Journal of Agricultural Engineering     Open Access   (Followers: 2)
Journal of Agricultural Engineering     Full-text available via subscription   (Followers: 1)
Journal of Agricultural Extension     Open Access   (Followers: 1)
Journal of Agricultural Extension and Rural Development     Open Access   (Followers: 3)
Journal of Agricultural Meteorology     Open Access  
Journal of Agricultural Production     Open Access  
Journal of Agricultural Research and Development     Full-text available via subscription  
Journal of Agricultural Research and Extension     Open Access   (Followers: 1)
Journal of Agricultural Science     Full-text available via subscription   (Followers: 9)
Journal of Agricultural Science     Open Access   (Followers: 4)
Journal of Agricultural Sciences     Open Access   (Followers: 1)
Journal of Agricultural Sciences     Open Access  
Journal of Agricultural Studies     Open Access   (Followers: 1)
Journal of Agricultural, Biological & Environmental Statistics     Hybrid Journal   (Followers: 11)
Journal of Agriculture     Open Access  
Journal of Agriculture     Open Access  
Journal of Agriculture and Ecology Research International     Open Access  
Journal of Agriculture and Food Research     Open Access  
Journal of Agriculture and Food Sciences     Full-text available via subscription   (Followers: 1)
Journal of Agriculture and Natural Resources     Open Access  
Journal of Agriculture and Natural Resources Sciences     Open Access   (Followers: 3)
Journal of Agriculture and Rural Development in the Tropics and Subtropics     Open Access   (Followers: 4)
Journal of Agriculture and Social Research (JASR)     Open Access   (Followers: 5)
Journal of Agriculture and Sustainability     Open Access   (Followers: 6)
Journal of Agriculture, Food Systems, and Community Development     Open Access   (Followers: 3)
Journal of Agriculture, Forestry and the Social Sciences     Full-text available via subscription   (Followers: 5)
Journal Of Agrobiotechnology     Open Access  
Journal of Agromedicine     Hybrid Journal   (Followers: 1)
Journal of Agronomy     Open Access   (Followers: 7)
Journal of Anatolian Environmental and Animal Sciences     Open Access  
Journal of Animal Science and Products     Open Access  
Journal of Animal Science, Biology and Bioeconomy     Open Access  
Journal of Apicultural Science     Open Access   (Followers: 2)
Journal of Applied Communications     Open Access  
Journal of Applied Ecology     Hybrid Journal   (Followers: 205)
Journal of Arid Land     Hybrid Journal  
Journal of Asia-Pacific Entomology     Full-text available via subscription   (Followers: 6)
Journal of Biological Control     Hybrid Journal   (Followers: 2)
Journal of Biology, Agriculture and Healthcare     Open Access   (Followers: 2)
Journal of Biosystems Engineering     Full-text available via subscription  
Journal of Buffalo Science     Hybrid Journal  
Journal of Cereal Research     Open Access  
Journal of Cereal Science     Hybrid Journal   (Followers: 3)
Journal of Citrus Pathology     Open Access  
Journal of Competition Law and Economics     Hybrid Journal   (Followers: 34)
Journal of Cotton Research     Open Access  
Journal of Dairy Research     Full-text available via subscription   (Followers: 4)
Journal of Dairy Science     Open Access   (Followers: 12)
Journal of Degraded and Mining Lands Management     Open Access   (Followers: 1)
Journal of Economic Surveys     Hybrid Journal   (Followers: 23)
Journal of Environmental and Agricultural Studies     Open Access   (Followers: 1)
Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes     Hybrid Journal   (Followers: 5)
Journal of Essential Oil Research     Hybrid Journal   (Followers: 3)
Journal of Extension Education     Open Access   (Followers: 1)
Journal of Family and Economic Issues     Hybrid Journal   (Followers: 4)
Journal of Food Protection(R)     Full-text available via subscription   (Followers: 7)
Journal of Food Security     Open Access   (Followers: 2)
Journal of Food Security and Agriculture     Open Access   (Followers: 1)
Journal of Halal Product and Research     Open Access  
Journal of Horticultural Science and Biotechnology     Hybrid Journal  
Journal of Horticultural Sciences     Open Access   (Followers: 2)
Journal of Horticulture and Postharvest Research     Open Access  
Journal of Industrial Hemp     Hybrid Journal  
Journal of Integrative Agriculture     Full-text available via subscription   (Followers: 4)
Journal of Kerbala for Agricultural Sciences     Open Access  
Journal of Land and Rural Studies     Hybrid Journal   (Followers: 10)
Journal of Modern Agriculture     Open Access   (Followers: 4)
Journal of Natural Resources and Development     Open Access   (Followers: 1)
Journal of Natural Sciences Research     Open Access   (Followers: 1)
Journal of Nepal Agricultural Research Council     Open Access  

  First | 1 2 3 4     

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Ethiopian Journal of Science and Technology
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2312-6019
Published by African Journals Online Homepage  [261 journals]
  • Effective residual life of bendiocarb insecticide on sprayed surfaces

    • Authors: Alemayehu Abate, Emana Getu, Melaku Wale, Mamuye Hadis, Wubegzier Mekonen
      Pages: 1 - 8
      Abstract: Effective residual life of insecticides on sprayed surfaces determines the number of spraying cycles required to cover malaria transmission season. However, residual efficacy of insecticides varies with spray surface type. This study assessed effective residual life of bendiocarb on cow dung plastered and mud plastered wall surface types of human dwellings against An. arabiensis.  Wall cone bioassays were carried out following the WHO (World Health Organization) standard operating procedures. Percentage mortality was calculated according to WHO bioassay protocol and Poisson regression model was fitted to show the association of mosquito mortality with explanatory variables using SAS (SAS Institute Inc. 2016. SAS® 9.4 Language Reference: Concepts, Sixth Edition. Cary, NC: SAS Institute Inc.). Efficacy of bendiocarb against An. arabiensis was 100% for the first 35 days on both cow dung and mud wall surface types. However, its efficacy deteriorated earlier on non-plastered wall surfaces after 35 days. The relationship between mosquito mortality and explanatory variables was: Mortality =3.637542, Sprayed = + 0.282841, Plastering= - 0.0094612 35-Days after spray, - 0.600159 65-Days after spray. Because coefficients for cone position were not significant, they were excluded from the regression equation. Generally, the effective residual life of bendiocarb on mud plastered wall surface was too short to cover malaria transmission season. Therefore, alternative insecticide with longer residual effective life is required in areas having more than two months of malaria transmission season.
      PubDate: 2022-01-01
      DOI: 10.4314/ejst.v15i1.1
      Issue No: Vol. 15, No. 1 (2022)
       
  • Effective residual life of bendiocarb insecticide on sprayed surfaces

    • Authors: Alemayehu Abate, Emana Getu, Melaku Wale, Mamuye Hadis, Wubegzier Mekonen
      Pages: 1 - 8
      Abstract: Effective residual life of insecticides on sprayed surfaces determines the number of spraying cycles required to cover malaria transmission season. However, residual efficacy of insecticides varies with spray surface type. This study assessed effective residual life of bendiocarb on cow dung plastered and mud plastered wall surface types of human dwellings against An. arabiensis.  Wall cone bioassays were carried out following the WHO (World Health Organization) standard operating procedures. Percentage mortality was calculated according to WHO bioassay protocol and Poisson regression model was fitted to show the association of mosquito mortality with explanatory variables using SAS (SAS Institute Inc. 2016. SAS® 9.4 Language Reference: Concepts, Sixth Edition. Cary, NC: SAS Institute Inc.). Efficacy of bendiocarb against An. arabiensis was 100% for the first 35 days on both cow dung and mud wall surface types. However, its efficacy deteriorated earlier on non-plastered wall surfaces after 35 days. The relationship between mosquito mortality and explanatory variables was: Mortality =3.637542, Sprayed = + 0.282841, Plastering= - 0.0094612 35-Days after spray, - 0.600159 65-Days after spray. Because coefficients for cone position were not significant, they were excluded from the regression equation. Generally, the effective residual life of bendiocarb on mud plastered wall surface was too short to cover malaria transmission season. Therefore, alternative insecticide with longer residual effective life is required in areas having more than two months of malaria transmission season.
      PubDate: 2022-01-01
      DOI: 10.4314/ejst.v15i1.1
      Issue No: Vol. 15, No. 1 (2022)
       
  • Leather and textile industries-strategic sectors for Ethiopia to gain
           capability of manufacturing for global market competitiveness: A
           literature review

    • Authors: Tenaw Tegbar Tsega, Klaus-Dieter Thoben, D.K. Nageswara Rao, Bereket Haile
      Pages: 9 - 30
      Abstract: Leather and textile industries have a vital role of transforming countries into industrialization-manufacturing led economy. There has been a focus on these industries in Ethiopia to bring manufacturing capability which can be scaled up in the future to produce other value-added products for global markets. However, there is lack of organized scientific information about the actions taken by the government to develop the industries, what the achievements are, and the challenges of the medium and large-scale manufacturing firms in the leather and textile industries. Therefore, the objective of this paper was to synthesize the available scientific and other reliable information by employing a qualitative systematic review method and come up with a new insight. Guided by the thematic literature synthesizing technique, this paper found that the medium and large- scale manufacturing firms in the leather and textile industries have penetrated the global market by improving the quality of products and increasing the quantity of production, although they have faced severe challenges to operate as per their design capacity mainly due to problems related to inputs. The paper presents the strategies implemented to stimulate the manufacture of leather and textile products, the performance improvement practices, the achievements, and challenges of the manufacturing firms in the leather and textile industries. Besides, it identified the existing gaps and the future lines of work.  
      PubDate: 2022-01-01
      DOI: 10.4314/ejst.v15i1.2
      Issue No: Vol. 15, No. 1 (2022)
       
  • Leather and textile industries-strategic sectors for Ethiopia to gain
           capability of manufacturing for global market competitiveness: A
           literature review

    • Authors: Tenaw Tegbar Tsega, Klaus-Dieter Thoben, D.K. Nageswara Rao, Bereket Haile
      Pages: 9 - 30
      Abstract: Leather and textile industries have a vital role of transforming countries into industrialization-manufacturing led economy. There has been a focus on these industries in Ethiopia to bring manufacturing capability which can be scaled up in the future to produce other value-added products for global markets. However, there is lack of organized scientific information about the actions taken by the government to develop the industries, what the achievements are, and the challenges of the medium and large-scale manufacturing firms in the leather and textile industries. Therefore, the objective of this paper was to synthesize the available scientific and other reliable information by employing a qualitative systematic review method and come up with a new insight. Guided by the thematic literature synthesizing technique, this paper found that the medium and large- scale manufacturing firms in the leather and textile industries have penetrated the global market by improving the quality of products and increasing the quantity of production, although they have faced severe challenges to operate as per their design capacity mainly due to problems related to inputs. The paper presents the strategies implemented to stimulate the manufacture of leather and textile products, the performance improvement practices, the achievements, and challenges of the manufacturing firms in the leather and textile industries. Besides, it identified the existing gaps and the future lines of work.  
      PubDate: 2022-01-01
      DOI: 10.4314/ejst.v15i1.2
      Issue No: Vol. 15, No. 1 (2022)
       
  • Intensity duration frequency curve analysis for selected meteorological
           stations in North Shoa, Amhara Region, Ethiopia

    • Authors: Eyoel Yigletu Aybehon
      Pages: 31 - 52
      Abstract: The estimation of rainfall intensity is required for the design of hydraulic and water resources engineering control structures. Rainfall data of 11 – 23 years long from four stations was used to generate Intensity-Duration-Frequency (IDF) curves and parameters for selected stations in the study area. The daily rainfall data set obtained was then subjected to frequency analysis to determine the distribution which best characterizes the data set. The result showed that Log Person Type III was the best fit probability distribution function. The annual extreme values of rainfall depth were computed for different rainfall durations and return periods. Ranked rainfall depths for each return period were converted to rainfall intensities. The corresponding rainfall intensities were computed for different rainfall durations and return periods. IDF curves were developed using MIDUSS 2.25 software for return periods of 2, 5, 10, 25, 50, and 100 years and for durations of 1, 2, 3, 6, 12, and 24 h, and determined IDF parameters. The results shown that for shorter durations (1 hour and 2 hours), the IDF curves gave higher intensities for the same return period while for longer durations (3 h, 6 h, 12 h and 24 h), they gave low intensities for the same return period. The IDF relationship developed can be used as valuable tool for the designing of hydraulic structures in the region. This study could serve as a spring board for other studies that imply the calculation of a peak flow and designing of hydraulic structures as an input to help improve flood resilience in the region.
      PubDate: 2022-01-01
      DOI: 10.4314/ejst.v15i1.3
      Issue No: Vol. 15, No. 1 (2022)
       
  • Intensity duration frequency curve analysis for selected meteorological
           stations in North Shoa, Amhara Region, Ethiopia

    • Authors: Eyoel Yigletu Aybehon
      Pages: 31 - 52
      Abstract: The estimation of rainfall intensity is required for the design of hydraulic and water resources engineering control structures. Rainfall data of 11 – 23 years long from four stations was used to generate Intensity-Duration-Frequency (IDF) curves and parameters for selected stations in the study area. The daily rainfall data set obtained was then subjected to frequency analysis to determine the distribution which best characterizes the data set. The result showed that Log Person Type III was the best fit probability distribution function. The annual extreme values of rainfall depth were computed for different rainfall durations and return periods. Ranked rainfall depths for each return period were converted to rainfall intensities. The corresponding rainfall intensities were computed for different rainfall durations and return periods. IDF curves were developed using MIDUSS 2.25 software for return periods of 2, 5, 10, 25, 50, and 100 years and for durations of 1, 2, 3, 6, 12, and 24 h, and determined IDF parameters. The results shown that for shorter durations (1 hour and 2 hours), the IDF curves gave higher intensities for the same return period while for longer durations (3 h, 6 h, 12 h and 24 h), they gave low intensities for the same return period. The IDF relationship developed can be used as valuable tool for the designing of hydraulic structures in the region. This study could serve as a spring board for other studies that imply the calculation of a peak flow and designing of hydraulic structures as an input to help improve flood resilience in the region.
      PubDate: 2022-01-01
      DOI: 10.4314/ejst.v15i1.3
      Issue No: Vol. 15, No. 1 (2022)
       
  • Comparison of kernel density function in detecting effects of daily
           emission of Sulphur (IV) oxide from an industrial plant

    • Authors: Siloko Israel Uzuazor, Ejakpovi Simeon Uyovwieyovwe, Ukhurebor Kingsley Eghonghon, Siloko Edith Akpevwe, Ishiekwene Cyril Chukwuka
      Pages: 53 - 66
      Abstract: Air pollution is a major concern of environmentalists because of the importance of air to man and other living organisms. This paper is about the investigation on the effects of daily emission of Sulphur (IV) oxide from an industrial pollutant using a nonparametric estimator which is the kernel estimator. Nonparametric estimators are free from distributional assumptions owing to the fact that most real-life data are not from a particular family of distribution. The functionality of this estimator is contingent on the smoothing parameter also called the bandwidth that determines the degree of the smoothness applied when analyzing the data. The bandwidth is extrapolated by minimizing the asymptotic mean integrated squared error which is the objective function of the kernel estimator. In this investigation, we selected some kernel functions of the beta family with the Gaussian kernel and obtained their bandwidths or smoothing parameters with respect to their distribution. The result of the analysis showed that an increase in number of tons of Sulphur (IV) oxide was associated with higher concentration level of the gas which suggests a potential danger of the gas to humans, animals and plants in the environment.
      PubDate: 2022-01-01
      DOI: 10.4314/ejst.v15i1.4
      Issue No: Vol. 15, No. 1 (2022)
       
  • Comparison of kernel density function in detecting effects of daily
           emission of Sulphur (IV) oxide from an industrial plant

    • Authors: Siloko Israel Uzuazor, Ejakpovi Simeon Uyovwieyovwe, Ukhurebor Kingsley Eghonghon, Siloko Edith Akpevwe, Ishiekwene Cyril Chukwuka
      Pages: 53 - 66
      Abstract: Air pollution is a major concern of environmentalists because of the importance of air to man and other living organisms. This paper is about the investigation on the effects of daily emission of Sulphur (IV) oxide from an industrial pollutant using a nonparametric estimator which is the kernel estimator. Nonparametric estimators are free from distributional assumptions owing to the fact that most real-life data are not from a particular family of distribution. The functionality of this estimator is contingent on the smoothing parameter also called the bandwidth that determines the degree of the smoothness applied when analyzing the data. The bandwidth is extrapolated by minimizing the asymptotic mean integrated squared error which is the objective function of the kernel estimator. In this investigation, we selected some kernel functions of the beta family with the Gaussian kernel and obtained their bandwidths or smoothing parameters with respect to their distribution. The result of the analysis showed that an increase in number of tons of Sulphur (IV) oxide was associated with higher concentration level of the gas which suggests a potential danger of the gas to humans, animals and plants in the environment.
      PubDate: 2022-01-01
      DOI: 10.4314/ejst.v15i1.4
      Issue No: Vol. 15, No. 1 (2022)
       
  • New sweet blue lupin, Lupinus angustifolius L. varieties (Sanabor and
           Vitabor) for Ethiopia

    • Authors: Likawent Yeheyis, Wondimeneh Mekonnen
      Pages: 67 - 80
      Abstract: Though bitter white lupin is an ancient pulse crop to Ethiopia, sweet lupins are new to the country. Sanabor and Vitabor are recently introduced sweet blue lupin varieties to be used as multipurpose crop in the traditional lupin growing agro-ecologies of Ethiopia. These varieties were introduced from Germany and evaluated along with fourteen other varieties which have been tested in different locations of the country from 2009 to 2013. The varieties are registered at national level in 2014. The merits of the varieties are their low alkaloid content, high seed yield, resistance to anthracnose and fusarium, most importantly are palatable for livestock and can be used for human food. Thus, the varieties are recommended as multipurpose pulse crop for the traditional and new lupin growing areas.
      PubDate: 2022-01-01
      DOI: 10.4314/ejst.v15i1.5
      Issue No: Vol. 15, No. 1 (2022)
       
  • New sweet blue lupin, Lupinus angustifolius L. varieties (Sanabor and
           Vitabor) for Ethiopia

    • Authors: Likawent Yeheyis, Wondimeneh Mekonnen
      Pages: 67 - 80
      Abstract: Though bitter white lupin is an ancient pulse crop to Ethiopia, sweet lupins are new to the country. Sanabor and Vitabor are recently introduced sweet blue lupin varieties to be used as multipurpose crop in the traditional lupin growing agro-ecologies of Ethiopia. These varieties were introduced from Germany and evaluated along with fourteen other varieties which have been tested in different locations of the country from 2009 to 2013. The varieties are registered at national level in 2014. The merits of the varieties are their low alkaloid content, high seed yield, resistance to anthracnose and fusarium, most importantly are palatable for livestock and can be used for human food. Thus, the varieties are recommended as multipurpose pulse crop for the traditional and new lupin growing areas.
      PubDate: 2022-01-01
      DOI: 10.4314/ejst.v15i1.5
      Issue No: Vol. 15, No. 1 (2022)
       
  • Comparative growth performance and carcass characteristics of guinea fowl
           (Numida meleagris) and three chicken genotypes

    • Authors: Getnet Zelleke, Mengistu Urge, Getachew Animut, Wondmeneh Esatu, Tadelle Dessie
      Pages: 81 - 99
      Abstract: A study was conducted to compare the growth performance and carcass characteristics of guinea fowl (GF) with Horro (HR) and Tilili (TL) local chickens, and Potchefstroom Koekoek (PK) exotic chicken. Seventy-five-day-old chicks from each genotype were used in 3 replications in a completely randomized design. Commercial starter and grower feed was fed ad libitum during the 20 weeks of the study. Daily dry matter intake in g/bird was greater for PK (70) than GF (63), HR (59), TL (61). The final body weight (FBW) g/bird was higher for PK (2022), intermediate for HR (1567) and TL (1539), and low for GF (1286). The average daily weight gain (ADG) was 9 g/bird for GF, 11 g/bird for HR and TL and 14 g/bird for PK. The eviscerated weight g/bird was highest for PK (1679), followed by HR (1323) and TL (1249) and lowest for GF (913). The breast weight (g/bird) was higher for PK (436) than GF (281), HR (311), and TL (284). The thigh weight was higher for PK (303) and HR (252), followed by TL (208) and lowest for GF (157). The abdominal fat content was higher for PK (29 g), followed by HR and TL (12 g each), and low for GF (6 g). The ultimate pH24 h of the breast was higher for GF (6.0) followed by PK (5.8), HR and TL (5.7). GF had higher pH24h  thigh meat (6.2), others had 5.8. The meat from GF was darker than normal in color compared to chickens. The GF, HR and TL local chickens could be used as alternate meat-type poultry species with continuous selection.  
      PubDate: 2022-01-01
      DOI: 10.4314/ejst.v15i1.6
      Issue No: Vol. 15, No. 1 (2022)
       
  • Comparative growth performance and carcass characteristics of guinea fowl
           (Numida meleagris) and three chicken genotypes

    • Authors: Getnet Zelleke, Mengistu Urge, Getachew Animut, Wondmeneh Esatu, Tadelle Dessie
      Pages: 81 - 99
      Abstract: A study was conducted to compare the growth performance and carcass characteristics of guinea fowl (GF) with Horro (HR) and Tilili (TL) local chickens, and Potchefstroom Koekoek (PK) exotic chicken. Seventy-five-day-old chicks from each genotype were used in 3 replications in a completely randomized design. Commercial starter and grower feed was fed ad libitum during the 20 weeks of the study. Daily dry matter intake in g/bird was greater for PK (70) than GF (63), HR (59), TL (61). The final body weight (FBW) g/bird was higher for PK (2022), intermediate for HR (1567) and TL (1539), and low for GF (1286). The average daily weight gain (ADG) was 9 g/bird for GF, 11 g/bird for HR and TL and 14 g/bird for PK. The eviscerated weight g/bird was highest for PK (1679), followed by HR (1323) and TL (1249) and lowest for GF (913). The breast weight (g/bird) was higher for PK (436) than GF (281), HR (311), and TL (284). The thigh weight was higher for PK (303) and HR (252), followed by TL (208) and lowest for GF (157). The abdominal fat content was higher for PK (29 g), followed by HR and TL (12 g each), and low for GF (6 g). The ultimate pH24 h of the breast was higher for GF (6.0) followed by PK (5.8), HR and TL (5.7). GF had higher pH24h  thigh meat (6.2), others had 5.8. The meat from GF was darker than normal in color compared to chickens. The GF, HR and TL local chickens could be used as alternate meat-type poultry species with continuous selection.  
      PubDate: 2022-01-01
      DOI: 10.4314/ejst.v15i1.6
      Issue No: Vol. 15, No. 1 (2022)
       
 
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