ORIGINAL_ARTICLE
New Pollution Challenges in Groundwater and Wastewater Due to COVID-19
Water is considered one of the most important components of life, alongside atmospheric air. Its pollution represents a serious threat not only to human health but also to the surrounding ecology. Water pollution problems were aggravated in the era of COVID-19. Approximately 80% of global diseases are waterborne, and polluted aquatic environments have been linked to the SARS-CoV-2 virus, which causes the disease COVID-19. Understanding the fate of this virus in aquatic environments like water and wastewater is critical. SARS-CoV-2 may be adsorbed on charged colloidal particles and this process probably depends on the pH of the medium. Other parameters that may influence this process include sorptive interaction with solid particles in soils, aquatic environments and sewage sludge. There are several areas of research that need to be investigated regarding the relationship between SARS-CoV-2 and the transmission of COVID-19 to aqueous environments, including indirect relationships between different aquatic environments (e.g., groundwater, drinking water and wastewater) and outbreaks of COVID-19. Different pathways and the fate of SARS-CoV-2 in water, wastewater and groundwater and subsequent human exposures also need to be determined. These issues will be explored in this review.
https://jsas.journals.ekb.eg/article_130426_a23d9121e57bbaef918c11c3f3b59920.pdf
2020-12-01
61
76
10.21608/jsas.2020.51353.1257
environmental pollution
Coronavirus
SARS-CoV-2
Groundwater
Drinking water
Human health
Disease
Hassan
El-Ramady
hassan.elramady@agr.kfs.edu.eg
1
Soil and Water Dept., Faculty of Agriculture, Kafrelsheikh University, 33516 Kafr El-Sheikh, Egypt
AUTHOR
Yahya
Eid
yahya.eid@agr.kfs.edu.eg
2
Vice-Dean for Graduate Studies, Research and Cultural Affairs Faculty of Agriculture,, Kafrelsheikh University 33516 - Kafr El-Sheikh, EGYPT. Tel: +20 111 1819340 Fax:+20 473109524
AUTHOR
Eric
Brevik
eric.brevik@dickinsonstate.edu
3
Departments of Natural Sciences and Agriculture and Technical Studies, Dickinson State University, Dickinson, ND, 58601
LEAD_AUTHOR
ORIGINAL_ARTICLE
Whey Based Culture Media for The Production of Selenium Nanoparticles Rich Product by Three Lactic Acid Bacterial Strains
The ability of three LAB strains namely, L. brevis, L. plantarum and P. acidilactici to grow and produce SeNPs in MRS or whey media supplemented with 100 or 200 ppm of Se(IV) as sodium selenite (Na2SeO3) was investigated. The presence of Se(IV) in the media retarded the bacterial growth in the first six hours of incubation thereafter, the bacterial growth gradually increased up to 72 hr. P. acidilactici was more tolerable to the inhibitory effect of Se(IV) than the other two strains. Although MRS media was more suitable for the growth of the three LAB strains, as estimated by the reduction of media pH and increase of absorbance compared to whey media, both media showed significantly similar conversion rate (98-100%) of Se(IV) to SeNPs at the end of the incubation period (72 hr). L. brevis, produced smaller SeNPs (125.7 nm) followed by L. plantarum (140.7 nm) and P. acidilactici (176.6 nm). The obtained data demonstrate the possibility of using the whey as a source of low-cost culture media for the production of milk whey based product rich in SeNPs with the assistant of the environmentally friendly LAB for different usage, i.e. as a feed supplement for livestock production.
https://jsas.journals.ekb.eg/article_100941_f3280dd806407270c14ef7666928509c.pdf
2020-12-01
75
88
10.21608/jsas.2020.28067.1217
L. brevis
L. plantarum
P. acidilactici
Sodium selenite
whey
MRS
nanoselenium
Mohsen
Zommara
mzommara@agr.kfs.edu.eg
1
Department of Dairy Science, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt
LEAD_AUTHOR
Mayada
Omran
am_emran2002@yahoo.com
2
Food Technology Research Institute, Agriculture Research Centre, Giza, Egypt
AUTHOR
Shady
El-Ghaish
shady2002nabil@yahoo.com
3
Department of Dairy Science, Faculty of Agriculture, Kafrelsheikh University, Egypt
AUTHOR
Abeer
Zayan
ab-zayan@yahoo.com
4
Food Technology Research Institute, Agriculture Research Centre, Giza, Egypt
AUTHOR
ORIGINAL_ARTICLE
Quality of Probiotic Gouda Cheese as a Functional Food
Gouda cheese was made from cow's milk inoculated with a cheese starter culture ( CSC ) without ( the control C) and with partial replacement of cheese milk with buffalo's milk ( 25%). The mixed milk was CSC with applied in T1, while Lb. helveticus CH5 and Lb. plantarum ATCC 14917 were used separately with CSC in T2 and T3 respectively. Microbiological analysis of fresh cheese and during ripening revealed that Gouda cheese treated with Lb. helveticus (T2), followed by cheese treated with Lb. plantarum (T3) had the highest values in total bacterial count and count of proteolytic and lipolytic bacteria when fresh and during ripening period, while no colonies of yeasts & moulds appeared in all cheese treatments when fresh, but after one month of ripening few colonies were observed. Lb. helveticus CH5 significantly increased during ripening and reached 9.2 log cfu. g-1 at day 60, while the number of the Lb. plantarum ATCC14917 bacteria at the beginning of the maturation period was about 8.2 log cfu g−1then increased at 60 day of ripening (8.8 log cfu g−1 ). The counts of the prementioned bacteria at the end of ripening were more than 7 log cfu/g ,Organoleptically, appearance and colour of control cheese of any age had the maximum scoring points. The control cheese and cheese from T3 ranked the maximum scores for body, texture and flavour and the differences between them were statistically significant. This was noticed in fresh cheese and during ripening period.
https://jsas.journals.ekb.eg/article_100943_5232de9af42059481658f05234ade3e1.pdf
2020-12-01
89
97
10.21608/jsas.2020.28512.1221
Gouda Cheese
probiotic bacteria
Quality
Sensory evaluation
ripening
Lb. helveticus
Lb. plantarum
Nahed
Elwahsh
nahed.elwahsh@yahoo.com
1
Dairy Research Department, Food Technology Research Institute, Agricultural Research Center, Giza, Egypt.
LEAD_AUTHOR
Amany
El-Deeb
2
Dairy Research Department, Food Technology Research Institute, Agricultural Research Center, Giza, Egypt.
AUTHOR
ORIGINAL_ARTICLE
Evaluation of Six Insecticides for the Control of Potato Whitefly Bemisia tabaci in Relation to Induced Resistance and Tuber Quality
Potato whitefly, Bemisia tabaci (Homoptera: Aleyrodidae) is one of the most important pests of potato. Field experiments were carried out during two successive growing winter seasons of winter 2017/2018 and 2018/2019 at the Research station of Faculty of Agriculture Alexandria University, to evaluate the efficacy of six conventional insecticides , emamectin benzoate + thiamethoxam, imidacloprid, etofenprox, fenitrothion, pymetrozine and thiamethoxam against Bemisia tabaci on potato plants (Solanum tuberosum L.,) of variety sponta, either as direct effect or indirect effect during induced resistance and their relationship with crop yield. Results showed that emamectin benzoate+thiamethoxam, thiamethoxam and imidacloprid achieved high reduction percentage of whitefly adults. Also, fenitrothion, pymterozine and imidacloprid achieved high reduction percentage of whitefly immature. Fortunately, these treatments had a positive effect, both on the measures of induced resistance that were estimated, and at the same time they had a promising effect on the potato yield in terms and quality.
https://jsas.journals.ekb.eg/article_127068_fee72172f508e4ffd4cf3a7500d29e49.pdf
2020-12-01
99
111
10.21608/jsas.2020.47176.1241
Bemisia
Tabaci
potato
plants
Insecticides
induced
resistance
yield
Quality
Farid
Sabra
sabra1983eg@yahoo.com
1
Pesticide Chemistry and Technology Dept., Faculty of Agriculture, Alexandria university, Alexandria, Egypt.
AUTHOR
Mona
Mahmoud
monaabdelkarim@yahoo.com
2
Plant Protection research Institute, Agriculture Research Center (ARC), Alexandria, Egypt
AUTHOR
Rania
Ammar
ranyammar@gmail.com
3
Plant Protection research Institute, Agriculture Research Center (ARC), Alexandria, Egypt
AUTHOR
Soad
Ahmed
soad2005eg@yahoo.com
4
Pesticide Chemistry and Technology, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
LEAD_AUTHOR
ORIGINAL_ARTICLE
Effect of Organic Chromium on Performance, Physiological and Anti-oxidative Stress Indicators of Growing Japanese Quail under High Ambient Temperature
This study was designed to determine the effect of Chromium methionine (CrMet) at different levels on growth parameters, blood constituents, immunity, and anti-oxidative properties of growing Japanese quail. A total of 150 7-day old unsexed Japanese quail chicks were randomly distributed to five dietary treatments of thirty birds to a treatment. Each treatment was replicated three times with ten birds to a replicate. Five isocaloric and isonitrogenous diets were formulated. CrMet was added to the basal diet at five different levels being 0, 200, 400, 600, and 800 mg /kg diet, respectively. CrMet supplementation improved body weight (BW) at 6 weeks of age by 2.3%. compared with those on diet 1 (control). Feed intake (FI) increased gradually by increasing CrMet levels in the diets compared with the control group and the group fed on 200 mg CrMet /kg diet. The best (P≤ 0.05) value of feed conversion ratio (FCR) was noticed in group fed 600 mg CrMet /kg as compared with other experimental groups. CrMet improved (P ≤ 0.01) the thymus, heart and testes weights, white blood cell (WBC) counts, hemoglobin (Hb), Packed cell volume (PCV%), and monocytes of growing Japanese quail. Also, Alanine aminotransferase (ALT) and total antioxidant capacity, while albumin, albumin/globulin ratio, aspartate aminotransferase (AST), total lipids, cholesterol, triglycerides, and lipid peroxide concentrations contents decreased significantly (P ≤ 0.01). In summary, inclusion of CrMet in growing quail diets may exert beneficial effects on growth parameters, blood constituents, immunity, and anti-oxidative properties.
https://jsas.journals.ekb.eg/article_141117_94b7a603db3a0e4afd7edac3fd4029a4.pdf
2020-12-01
113
124
10.21608/jsas.2021.53399.1269
Chromium
productive
physiological
rates
oxidative
Stress
Quail
Waleed
Dosoky
w-dosoky@alexu.edu.eg
1
Department of Animal and Fish Production, Faculty of Agriculture (Saba Basha), Alexandria University
LEAD_AUTHOR
Hassan
zeweil
hszeweil@yahoo.com
2
Department of Animal and Fish Production, Faculty of Agriculture (Saba Basha), Alexandria University
AUTHOR
Mohamed
Ahmed
drmhassan2008@gmail.com
3
Department of Animal and Fish Production, Faculty of Agriculture (Saba Basha), Alexandria University
AUTHOR
Soliman
Zahran
zahran200@yahoo.com
4
Department of Animal and Fish Production, Faculty of Agriculture (Saba Basha), Alexandria University
AUTHOR
tark
Ebeid
tarkamin@yahoo.com
5
poultry production department, Faculty of Agriculture,, Kafr elsheikh University
AUTHOR
Ayman
Khalifah
ayman_khalifah2000@yahoo.com
6
Department of Livestock Res., Arid Lands Cultivation Res. Instit., City of Scientific Res. and Technological Applications, New Borg El-Arab, P.O. Box 21934, Alexandria, Egypt
AUTHOR
Walaa
kashyout
walaafarag53@yahoo.com
7
Department of Animal and Fish Production, Faculty of Agriculture (Saba Basha), Alexandria University
AUTHOR
ORIGINAL_ARTICLE
An analytical study of the economic effects of the encroachment on agricultural lands in Dakahlia Governorate
The phenomenon of encroachment on agricultural lands is considered a major economic problem facing the Egyptian national economy, given that the agricultural land resource is not sufficient to meet the human and animal needs of the necessary agricultural commodities due to the low agricultural production that negatively affects the Egyptian national economy, as the encroached area in Dakahlia Governorate reached about 5528 acres, representing about 7,3% of the total area of encroachment at the level of the Republic in 2019,The study aimed to address the phenomenon of encroachment on agricultural lands in all its various forms that threaten food security in Egypt in general and the Dakahlia Governorate in particular so that the phenomenon of encroachment at the governorate level and the national level can be explained through a set of goals, came in the eighth position in Dakahlia Governorate where cases of encroachment were estimated About 101,1 thousand cases, representing about 6,2% of the total number of cases of encroachment on agricultural lands on an area of 5086 acres, representing about 7,1% of the total area of land encroachment, the Dakahlia Governorate came in the field of study.
https://jsas.journals.ekb.eg/article_100940_4f95295dfc684259d8a49621977c0470.pdf
2020-12-01
263
276
10.21608/jsas.2020.27833.1215
An analytical
study
of the economic
effects of the encroachment
on agricultural
lands in
Dakahlia Governorate
M.
Fawaz
drmfawaz@yahoo.com
1
Agricultural Economic Dept., Fac. of Agric., Kafrelsheikh University
AUTHOR
Roshdy
Eladawy
osama_roshdy1@yahoo.com
2
Department of agricultural economics,faculty of agriculture,kafrelshrikh unversity , egypt
AUTHOR
Al.
Al-Nufaily
drnefili@yahoo.com
3
Agricultural Resarch Center, Mansoura
AUTHOR
Samy
Aboraya
samyahmed5252@gmail.com
4
Faculty of Agriculture, Mansoura University
LEAD_AUTHOR
ORIGINAL_ARTICLE
Developing a Scale For The Level Of Developmental Contribution Of Rural Woman At Some Villages In Kafr El-Sheikh Governorate
The research aims mainly to develop a quantitative scale of the level of rural woman developmental contribution in some villages of Kafr El-Sheikh governorate so as to have an acceptable Validity and Reliability. The scale was applied on random samples of 380 respondents. The findings showed that the final shape of the scale consists of 100 statements demonstrating a high degree of Validity and Reliability. Furthermore, the results assured a high level of apparent Reliability of the scale, as it was found that the rates of arbitrators agreeing on the scale phrases ranged between 66.6% and 100% with an average of 84.9% which is sufficient to achieve the apparent Reliability of the scale by our research. The results also reveled a high level of the Reliability formation of the scale, where the value of the correlation coefficient between the level of rural woman developmental contribution using the proposed scale and one of the variables theoretically assumed to correlate significantly (which is the variable of the educational level of respondent) about 0.58 which is statistically significant value at the level Financial 0.01, which indicates a high level of the Reliability formation of the proposed scale of developmental contribution. The results indicated the high ability of the scale to distinguish based on two methods of the peripheral comparison and the Ferguson Coefficient of Discrimination, whose value reached 0.51, a high value indicating the ability of the proposed scale to distinguish.
https://jsas.journals.ekb.eg/article_100942_3ec7021b38a4aa96e0ba370bfda69b0b.pdf
2020-12-01
277
290
10.21608/jsas.2020.28437.1220
Keywords: Developing
Scale
developmental
Contribution
rural
Validity
Reliability
Mohamed
Shams El- Din
mohamedshams@agr.kfs.edu.eg
1
Rural Sociology, Faculty of Agriculture, Kafrelsheikh University, Egypt
AUTHOR
Rateb
Soma
ratebsoma@agr.kfs.edu.eg
2
Rural Sociology, Faculty of Agriculture, Kafrelsheikh University, Egypt
AUTHOR
Wafaa
Ahmed Nasr
nasrwafaa2@gmail.com
3
Rural Sociology, Faculty of Agriculture, Kafrelsheikh University, Egypt
LEAD_AUTHOR
ORIGINAL_ARTICLE
Competition of The Seedtime Production of Sugar beet Compared to The Most Important Winter Crops in Dakahlia Governorate
The research aimed at assessing the most important economic and production properties for the three seedtimes of sugar beet and also assessing some indicators of production and economic efficiency compared with the most important competing winter crops. also establishing price substitutes for the production unit of these seedtimes taking into consideration the competing ability of these crops. Through comparing these results with their counterparts of sugar beet production during the same season , it turned out that these seedtimes are less in profit than the broad been crops , while the third seedtime of sugar beet so came equal to the wheat crop and accused the clover . so price substitutes have broad been adopted to price the outcome of these seedtimes estimating 870.6, 777.1 , 731.5 pound per ton representing about 23.6% . 16.6%, 13.1% from its counterparts in 2017/2018 in sequence to equal the net return of the pound of the wheat crop . It was estimating 930, 883.5, 743.3 pound per ton representing about 32% . 32.6% , 14.9% from its comet part in the year of counterparts to equal the net return of the pound to the crop of the beans reached , it also eased 897. , 852.2 , 716.9 pound per ton representing about 27.3% . 27.9% , 10.8% from its counterparts in the year of counterparts to equal the net return of the pound of the clover , this reveals the in competency of this crop to the production seedtimes of sugar beet.
https://jsas.journals.ekb.eg/article_100944_c0aca740b28f25de9cc899c035a2984d.pdf
2020-12-01
291
306
10.21608/jsas.2020.28538.1222
Competition of The
Seedtime
Production of
Sugar beet
Compared
to The Most Important Winter
Crops in Dakahlia Governorate
Moustafa
El kblawy
drmostafa787@gmail.com
1
Economic Research Institute , Agricultural Research Center , Giza, Egypt
AUTHOR
Hebat Allah
Elsyed
dr.hebaboalazm@gmail.com
2
Department Agricultural Economic. , Faculty of agricultural ,Mansoura University
LEAD_AUTHOR
ORIGINAL_ARTICLE
Economical Evaluation for Pod Yield in Some Peanut Genotypes
This study relied on field experiments carried out in the agricultural research stations in Assiut and Sohag during the four seasons of 2014, 2015, 2016, 2017 and the experiment consisted of 32 experimental plots consisting of 8 varieties of peanuts that were cultivated using the design of randomized complete block design in four replicates to determine the economics of production these varieties, and the analysis resulted in the 2014 Sohag 119 which had the highest productivity as it reached 29.87 ton/fad and the secondary yield was 8.2 ton/fad and the lowest productivity was for genetic makeup VAC-R92 where its productivity reached 21.76 ton/fad for the main crop, 5.6 ton/fad for the secondary crop. As for the other three years 2015, 2016 and 2017, the results are in agreement. The highest productivity was 29.87 ton/fad and the secondary in productivity was for genotypes VAC-R92, where its 21.76 ton/fad for the main crop, 5.6 ton/fad for the secondary crop. As for the other three years 2015, 2016 and 2017, the results agreed that the highest productivity was for the genetic makeup of Sohag 120, reaching 27.5, 33.3 and 28.7 ton/fad respectively, 2015, 2016 and 2017. Thus the highest revenue reached 15663.9 EGP/fad main and secondary crop. For Sohag 119, the lowest profitability for genotyping was VAC-R92, as it reached 10235.4 EGP/fad. For the other three years, 2015, 2016, 2017, the highest revenue was for Genotypes Sohag 120, which amounted to 19142.6, 23984.3,25874.5 EGP/fad respectively, 2015, 2016,2017.
https://jsas.journals.ekb.eg/article_127070_0fc92352bf00f28791aad9f0c7521422.pdf
2020-12-01
307
316
10.21608/jsas.2020.50289.1247
Economical
Evaluation
pod yield
Peanut
genotypes
productivity
genetic makeup
VAC-R92
Ghada
Abd el aziz
ghadab.abdelaziz@gmail.com
1
ARC
AUTHOR
Said
Eissa
saideissa5@yahoo.com
2
Central Laboratory for Design & Statistical Analysis Research , A R C, Giza, Egypt
LEAD_AUTHOR
ORIGINAL_ARTICLE
Economics of Production and Marketing of Tomato crop in Egypt
Tomato crop is considered as an important vegetable crop in Egypt, whereas average of cultivated area of tomatoes is 546 thousand feddan related to average of cultivated area of vegetables in Egypt during the study period. Marketing stages are among the factors that affect the agricultural stability , so that improving economic and social environment in which tomato producers work and format directions that help in achieving agricultural development, accordingly it has implications for producers decisions. The research problem is represented in the increase in mediators share during marketing operations, as well as high marketing costs and farmers receive low farm prices that with high retail prices paid by consumers, intervention in the price policies of tomato crop, whether in relation to inputs or outputs, which creates a differences in local and international prices, in addition to not optimizing the use of agricultural inputs. The research aimed to identify the productive position and marketing system of tomato crop , estimate the marketing margins and marketing efficiency, to analyze the current situation and map future policies and programs for producing and marketing of tomato crop. The study relied on descriptive and quantitative analysis methods represented in estimating items of production costs and revenues of the tomato crop , So that the study based on secondary data which is published by Ministry of Agriculture and Land Reclamation and the Central Agency for Public Mobilization and Statistics during the period (2004-2018).
https://jsas.journals.ekb.eg/article_132367_41afc1ee98f0ff7d26c68b384a88bed9.pdf
2020-12-01
317
324
10.21608/jsas.2020.50526.1249
Tomato
Economic
production
Sharkia
governorate
marketing
Prices
Hazem
Elkhashab
hazemelkhashab2016@gmail.com
1
Agric. Exten. Econ. Dept. Fac. Tec. Dev., Zagazig Univ., Egypt.
LEAD_AUTHOR
D.A.
Shafiq
2
Agricultural Economics Research Institute - Agriculture Research Center
AUTHOR
ORIGINAL_ARTICLE
Economic and Environmental Assessment of Sugar Beet Production and Processing in Egypt
The 2030 sustainable agricultural development strategy aimed to increase the produced amount of sugar to about 3.5 million tons by increasing the area planted with sugar beet to reach 800 thousand feddans by 2030 to cover the sugar gap, so the research aims to conduct an economic and environmental assessment of sugar production from sugar beet In Egypt. An evaluation of the financial performance of the Delta Sugar Company for the period (2014-2018) was conducted which showed an increase in the company's ability to fulfill its short-term financial obligations, Fixed assets cover long-term loans, high annual average fixed assets turnover, the company's efficiency in using current assets in the production process and generating sales from them. The company's economic evaluation also revealed that the average net return of the pound amounted to about 0.48 pounds, and the average capital productivity was about 1.55 pounds, and the average productivity of wages was about 5.59 pounds as an average for the period, and the added value of beet processing was about 356.4 million pounds. Through SWOT analysis, the weighted points for the elements of the internal and external environments showed a competitive level at 2,971 for the internal environment and about 3.048 for the external environment. The higher weighted points for the external environment over the weighted points for the internal environment confirm the possibility of expanding sugar production from sugar beet.
https://jsas.journals.ekb.eg/article_141111_4637d8686c13e5f7e8884363967472ff.pdf
2020-12-01
327
340
10.21608/jsas.2021.50438.1248
Sugar beet
Sugar Self-sufficiency
Financial Performance
Economic Evaluation
Delta Sugar Factory
Panel data model
sowt analysis
seham
hashem
seham.hashem@iesr.asu.edu.eg
1
Department of Environmental Agricultural Sciences, Institute of Environmental Studies and Research, Ain Shams University
LEAD_AUTHOR
ORIGINAL_ARTICLE
Study of The Administrative Pathways of Citrus Fruits in Sharkia Governorate
The research aimed to identify the most important marketing pathways for citrus crops produced in Sharkia governorate, by studying the most important marketing channels and the dealers in each of them in the local market. The research showed that the most important problems facing merchants in marketing citrus fruits are low product quality, high purchase price, low selling price, high wages of trained workers, high transportation costs, and high waste Up to 20%, the product is difficult to sell (market stagnation), respectively, and they represent about 1%, 4.1%, 3.2%, 7% of the total. The research showed a decrease in the marketing efficiency of orange crops, as it reached 57.7% in the case of sale by the kale system in the new Salhia area, while the marketing efficiency of citrus in Abu Hammad Center reached 53%. As for the practical efficiency, the citrus fruits in the New Salhia area reached 42.24%, as for Al-Mawaleh in Abu Hammad area, the practical efficiency reached 46.8%, and finally the price efficiency of citrus fruits in the New Salhia area reached 43.34%.
https://jsas.journals.ekb.eg/article_132368_d5eae9dc3f1c887d552211ed12fdc579.pdf
2020-12-01
341
352
10.21608/jsas.2020.50527.1250
Economic
market
production
Sharkia
governotate
Crop
fruit
Hazem
Elkhashab
hazemelkhashab2016@gmail.com
1
Agric. Exten. Econ. Dept. Fac. Tec. Dev., Zagazig Univ., Egypt
LEAD_AUTHOR
N.E.
ATIA
2
Agric. Exten. Econ. Dept. Fac. Tec. Dev., Zagazig Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
An Economic Study of The Impact of Overexploitation on Sustainable Use for Fish Resources in the Egyptian Lake Mariout
Excessive fishing (overfishing) is one of the most important problems facing Lake Mariout, due to its negative impact on the quantity of fish production in the coming seasons, and the lake also faces the causes that led to a decrease in its area from 204 thousand feddans in 1798 to 17 thousand tons in general. The research problem is represented in the fluctuation in the total fish production of the lake and the fluctuation of the main culture production (tilapia) from it to the total fish production in them from 61.38% as a maximum in 2001 to 52.38% as a minimum in 2000. The research aims mainly to identify the effect of excessive fishing on the sustainable use of fishery resources in the Egyptian Lake Mariout. Surplus production models It was found from the estimated results that there is wasteful use of fishing boats in the lake by 273 boats, or about 34% of the maximum number of boats in the lake, as the actual fishing effort exceeded the fishing effort achieved for the maximum sustainable yield, which indicates. The study recommends the continuous review of the maximum permissible number of fishing boats operating in the lake according to technical and economic principles, in order to ensure sustainable use of the materials in the lake, while studying the allocation of fishing boats according to the fishing effort and including them with permits for fishing, in cooperation between the lake administration, fish cooperatives and elders of fishermen.
https://jsas.journals.ekb.eg/article_135048_be15a67dd77b837d29227809f57e16a7.pdf
2020-12-01
353
363
10.21608/jsas.2020.50740.1252
Overfishing
seasonal fluctuations
Schaefer model
Fish production
maximum yield effort
Lake Mariout
fish resources
Roshdy
Eladawy
dr.roshdyaladawy@gmail.com
1
کلية الزراعة جامعة کفر الشيخ
LEAD_AUTHOR
ORIGINAL_ARTICLE
Role of Rural Women in Sustainable Development in Sharkia Governorate
Rural woman does many productive and marketing activities, whether inside or outside her home in many fields as: agriculture, animal care, plant and animal food processing, and marketing of their products. This study aimed to know the performance efficiency and participation of rural women in sustainable development in Egypt and Sharkia Governorate. In addition the identification of factors and variables affecting the role of rural women in sustainable development in the Sharkia governorate. So that, The study relied on two main data sources which are secondary data published by the official authorities and primary data through a specially designed questionnaire form. It also relied on the descriptive and quantitative methods and choosing the appropriate ones according to the available data.The study reached to several results, the most important of which are:1- The most important operations are done by woman are at home, then the agricultural field, and finally in marketing their agricultural commodities and products.2- It was found that the time that the rural agricultural woman has done those three previous operations 53.16%, 17.05% and 29.79% respectively.3- Her wage for the total three previous operations was about 1390.71 L.E / month or 45.72 L.E / day.4- One of the most important problems impeding rural women's participation in sustainable development is the existence of customs and traditions, as her role, movement and activity must be restricted within the home only, without work.
https://jsas.journals.ekb.eg/article_141112_3269b6f68f21bb8d9de54823aa9545ad.pdf
2020-12-01
365
379
10.21608/jsas.2021.50940.1253
Rural Women
Rural development
Sustainable Development
food processing
plant processing
animal manufacturing
marketing
DINA
shafike
dina_hena@yahoo.com
1
Department of Agricultural Economics, Faculty of Agriculture, Zagazig University,Egypt , Zagazig
LEAD_AUTHOR
Tahany
Bayoumi
2
Agricultural Economics Research Institute
AUTHOR
ORIGINAL_ARTICLE
An Economic Study on Rice and Alternative Crops in Light of the Relative Scarcity of Water in Kafr El-Sheikh Governorate
The research aimed to study alternative economics of rice through the relative scarcity of water in Kafr El-Sheikh Governorate, and to develop a concept to reduce the cultivated areas in the governorates in line with the requirements of producers and the goals of the national economy, Study the development of the productive capacity of the rice crop and alternative crops in Egypt and Kafr El-Sheikh Governorate,So Study the relative importance of the cultivated area of the rice crop in the governorates and estimate the separate impact of the area and productivity on the production capacity, The rates of temporal change indicate that there is a decrease in the production capacity of the rice crop with its two elements, the cultivated area and the acre productivity at the national and local levels in Kafr El Sheikh Governorate, and Kafr El Sheikh Governorate contributed about 20.8% of the rice production capacity in the Republic, nd the effect of feddan productivity on production capacity exceeds the effect of the cultivated area in the governorates of Dakahlia, Beheira, and Gharbia, and that the effect of the cultivated area on production outweighs the impact of feddan productivity. In the governorates of Kafr El Sheikh, Sharkia, Damietta.
https://jsas.journals.ekb.eg/article_141113_7f037757a128fff7db8cd0ad24b847b4.pdf
2020-12-01
381
396
10.21608/jsas.2021.51031.1254
An economic
study of
rice
and alternative crops
in light
of the relative
scarcity of water
Mohamed
Khalifa
mmhkhalifa4@gmail.com
1
Institute of Agricultural Economics, Agricultural Research Center, Sakha, Egypt
AUTHOR
Mohamed
Abdel-Tawab
mehanaeconomic@yahoo.com
2
Insitute of Agriclutral Economics, Agricultural Research Center, Sakha, Egypt
LEAD_AUTHOR
Shimaa
Elewa
shimaahany375@gamil.com
3
Insitute of Agriclutral Economics, Agricultural Research Center, Sakha, Egypt
AUTHOR
ORIGINAL_ARTICLE
The Effect Of Applying Digital Transformation System On The Support Of Some Indicators Support Food
the research paper is mainly aims to know the targeted current and future status of food support and the impact of the application of the electronic card system for food support. Qualitative and quantitative methods were utilized to achieve the study purpose, as well as exponential Function to estimate the growth rates, Simple & Linear Regression, Dummy Variable and forecasting model, secondary data collected from CAPMS. The main results of the study can be Summarized as follows: There is an increasing cash support trend towards food support, Ration goods and bread support about 160%, 18%, 15% respectively during the period2000-2019, but 13%, 16%, 11% in real support respectively during this period. The change rate of 1% total cash support will change the amount support of food by 0.208 unit, and change in the amount of cash support unit for the bread support will change the support food by 1.042 unit. It is expected to increase food subsidies an bread by about 22%, 50% 2025 respectively. In addition to subsidies for food, commodities and bread support has doubled about 20 times, despite the total support doubling about 67.8 times, this may necessary correcting the support path and reaching the support for the best. because decreasing percentage of food support from about 63% of the total support to about 19% of the total support during the period
https://jsas.journals.ekb.eg/article_141118_2ff18a8e21a3d9b96c819b7ae1531612.pdf
2020-12-01
397
406
10.21608/jsas.2021.51985.1260
: Digital transformation
Food support
Bread support
Electronic Cards
Logistic support
Dummy Variables
future forecasts
food subsidies
Mahmoud
Fawaz
drmfawaz@yahoo.com
1
Agricultural Economic Dept., Faculty of Agriculture, Kafrelsheikh University, Egypt.
AUTHOR
Mohamed
elsafty
elsaftym25@yahoo.com
2
Agricultural Economic Dept., Faculty of Agriculture, Kafrelsheikh University, Egypt.
AUTHOR
Elsayed
Atallah
elsayedatallah@gmail.com
3
Department of Agricultural Economics, Faculty of Agriculture, Damietta Uni. Damietta, Egypt.
AUTHOR
Khald
ElBohy
haked5790@gmail.com
4
Agricultural Economic Dept., Faculty of Agriculture, Kafrelsheikh University, Egypt.
LEAD_AUTHOR
ORIGINAL_ARTICLE
Economic Efficiency Indications for the Beans in Egypt and Sharkia Governorate
The study aimed to identify the current status of beans production in Egypt and Sharkia Governorate. The study found that there is an annual decrease in the cultivated area and the total production of beans in Egypt, were -7% . There is an annual increase in the food gap of beans was 9%. There is an annual increase in the total costs per and the net yield of 12%. Once of most important factors affecting the production of the bean crop in the study sample were: the amount of seeds, the number of workers, and the value of pesticides. The costs of producing an feddan of beans was 11369.44 LE, the total revenue was 14924.52 LE. The net return was 3555.08 LEs, the ratio of revenue to costs was 1.31, the profitability of the invested pound was 0.31 LE. Ones of important problems facing bean growers are: Production inputs are high in value, plants are affected by Holoparasites and diseases, pesticides may not be available in agricultural societies. The study recommends the necessity of increasing the production of beans by growing them in the cultivated lands, and the crop is loaded onto other winter crops. Production requirements must be available in agricultural societies, contract farming policy must be applied, or the Government must set a price for the beans before planting them, so that the farmer guarantees an appropriate price for his crop, and also control must be tightened on pesticides in the local market
https://jsas.journals.ekb.eg/article_141115_7e9bf341810d101bdf958907a08879e9.pdf
2020-12-01
407
420
10.21608/jsas.2021.52096.1261
Bean
crops
production
Economic
Efficiency
Indicators
costs
Revenue
Egypt
Sharkia
Tahany
Mohamed Bayoumi
dr_tahany_saleh@yahoo.com
1
Agricultural Economics Research Institute - Agricultural Research Center
LEAD_AUTHOR
Alaa
Neama
alaa_nema10@yahoo.com
2
Agricultural Economics Research Institute - Agricultural Research Center
AUTHOR
ORIGINAL_ARTICLE
An Analytical Study of Egyptian Orange and Competition for External Markets
The importance of competitiveness in maximizing the benefit of the features offered by the global economy and the reduction of its negatives, and the global competitive report indicates that small States are more able to take advantage of the concept of competitiveness from large countries. The problem of study was in the small production of junior traveler despite the far flexible areas of the Republic and although the climate in the Arab Republic of Egypt is characterized by many other countries competing for us. The strategic location of the Republic is qualified for export to all countries of the world easily and without imposing extra charges for the shipping or transport process. The aim of studying me to know some of the competitiveness of the export of Egyptian citizens and study the centimeter of the overall industrial competition for the oral Egyptian orange. The study was adopted on published and unpublished secondary data, published data from the Internet and the International Trade Organization. The study was adopted in the analysis and viewing of the results on the desired and quantum of al-Asi and al Qa'i al-Asi, as well as to use some statistical and statistical indicators such as the contrast analysis, relative importance estimates, the time period of time, the factual differences and growth rate, as well as some competitiveness indicators. The results of the study indicate 1. The General Index to the Stability In the amount of Egyptian export of orange exports is about 4.252%. Which indicates the extension of the amount of Egyptian orange exports. 2. Calculate the export efficiency of the Orange Transport in 2018 showed that about 189.05%. 3. The high-ratio of the assessment of the Egyptian orange competition is exposed to the OSA, which is about 20.445
https://jsas.journals.ekb.eg/article_154843_99d3274a0fb76ba315ebf3e2a8e115bd.pdf
2020-12-01
421
433
10.21608/jsas.2021.51512.1262
Orange Junior
Space
productivity
Efficiency
Database factor
General time trend
competitiveness
Relative importance
Composite Indicator
Alaa
Neama
alaa_nema10@yahoo.com
1
Agricultural Economics Research Institute, Agricultural Research Center, Egypt
LEAD_AUTHOR
Mohamed
Raafat
mraafat73@yahoo.com
2
Agricultural Economics Research Institute, Agricultural Research Center, Egypt
AUTHOR