scholarly journals Challenges in Controlling Vibriosis in Shrimp Farms

2021 ◽  
Author(s):  
Hethesh Chellapandian ◽  
Jeyachandran Sivakamavalli ◽  
A. Vijay Anand ◽  
Balamuralikrishnan Balasubramanian
Keyword(s):  
Environmental Factors ◽  
Penaeid Shrimp ◽  
Vital Role ◽  
Shrimp Farming ◽  
Green Water ◽  
Shrimp Culture ◽  
Promising Alternative ◽  
Bacterial Diseases ◽  
Live Feeds ◽  
The Impact

Recently the shrimp farming has blooming as a crucial counterpart in the aquaculture industry which contribute the remarkable role in sea food production as well economy of the country. However, this could be fluctuated every year through several circumstances such as unfavorable (Poor water and soil quality) environmental factors. The environmental factors includes disease causing bacterial pathogens in the soil and water which causes the bacterial diseases in the aquatic animals, like this hectic problems are prevented through bioaugmentation strategies. The pond environment plays a vital role in determining the healthy culture system, but there is high risk for manipulation by bacterial community which takes care of waste generated in the system through in situ bioremediation. Due to the impact of rapidly growing bacterial diseases of shrimps throughout the world, numerous studies have been carried out to find immunostimulants, immunomodulators and biotic component that can be used against vibrio causing pathogens, and can also be used as an alternative for antibiotics. Recent research focus towards the marine resources such as microalgae, seaweed, live feeds (like artemia, copepods, rotifers), bacteriophage, and probiotics have been found to have higher potential in reducing vibriosis. Eco-based shrimp farming includes green water technology, phage therapy bio-floc technology (BFT) and integrated multi-trophic aquaculture (IMTA), these methods hold a promising alternative to antibiotics in the near future. Bacterial diseases caused by vibrios have been reported in penaeid shrimp culture systems implicating at least 14 species and they are Vibrio harveyi, V. splendidus, V. parahaemolyticus, V. alginolyticus, V. anguillarum, V. vulnificuslogei etc.

Penaeid shrimp (Penaeus monodon) culture in Bangladesh.

2020 ◽  
Author(s):  
Khandaker Huq ◽  
Shafiq-ur-Rahman
Keyword(s):  
Rural Areas ◽  
Saline Water ◽  
Economic Value ◽  
Penaeus Monodon ◽  
Penaeid Shrimp ◽  
Shrimp Farming ◽  
Grazing Land ◽  
Shrimp Culture ◽  
Saline Water Intrusion ◽  
Employment Generation

Abstract The shrimp (Penaeus monodon), locally known as bagda, is known as white gold for its high economic value in Bangladesh. The shrimp sector of Bangladesh is seen as having become important in economic terms, contributing significantly to foreign exchange earnings and employment generation in rural areas. P. monodon culture is practiced in the Bagerhat, Chokoria, Cox's Bazar, Khulna, Moheshkhali, Shatkhira and Teknaf regions and recently has been introduced in some coastal areas of Noakhali district. Three culture systems are found in Bangladesh, i.e. traditional, improved traditional and semi-intensive with production rates of 150-200, 250-400 and 2,000-2500 kg ha-1, respectively. Seed is collected from natural sources and is produced in hatcheries. There are 44 penaeid shrimp hatcheries in Bangladesh. The present shrimp fry production is 3.05 billion. More than 200,000 people are engaged in shrimp fry collection and marketing and more than 350,000 people are engaged in shrimp farming. Ancillary industries like shrimp hatcheries, feed industries, ice factories, processing factories, net industries and shrimp culture apparatus industries provide direct employment for 25,000-30,000 people. Adverse environmental impacts reported are reduction of grazing land and saline water intrusion due to mismanagement but these could be overcome by introducing environmentally friendly shrimp culture. As the climate of Bangladesh is favourable for P. monodon culture, it is necessary to give more attention to improve it as it will open a new horizon in the economy of the country.

IMPACT OF WHITE SPOT SYNDROME VIRUS DISEASE ON GILLS IN SHRIMP, PENAEUS MONODON

2019 ◽  
Vol 25 (1) ◽  
Author(s):  
C.A. JAWALE ◽  
B.J. UGALE
Keyword(s):  
White Spot Syndrome Virus ◽  
Virus Disease ◽  
Penaeus Monodon ◽  
Penaeid Shrimp ◽  
Shrimp Farming ◽  
Protozoan Parasites ◽  
Shrimp Culture ◽  
Histological Changes ◽  
Histological Techniques ◽  
Gill Cells

Protozoan parasites cause problems in Penaeid shrimp culture and major impact on the shrimp farming industry.White spot syndrome virus (WSSV) is a major shrimp pathogen that also infects Penaeus monodon species was selected. Histological changes in the gill cells were studied. Histological techniques using paraffin embeded tissues as well as frozen tissues were used for identification of WSSV infection. Histological manifestation such as gill cells could be detected. The gill cells were marked and characteristic of WSSV infections were observed. The present investigation was focused on the virus infecting shrimp. The microscopic examinations of the histological preparation are presently used to detect WSSV zoothamnium.

scholarly journals The impact of nitrifying probiotic to population growth of pathogenic bacteria, Vibrio sp., and toxic nitrogen gasses in marine shrimp culture media under laboratory condition

2021 ◽  
Vol 11 (1) ◽  
pp. 130-140
Author(s):  
Bambang Widigdo ◽  
Munti Yuhana ◽  
Aliati Iswantari ◽  
Claritha Madonsa ◽  
Inka Destiana Sapitri ◽  
...  
Keyword(s):  
Pathogenic Bacteria ◽  
Sea Water ◽  
Culture Media ◽  
Free Market ◽  
Pond Water ◽  
Shrimp Farming ◽  
Nitrifying Bacteria ◽  
Shrimp Culture ◽  
Pathogenic Vibrio ◽  
The Impact

Intensification of shrimp farming has led to problems of water quality and development of pathogenic bacteria. The excess feed and fecal deposited in the bottom of the pond undergo ammonification and result in excess of ammonia formation in pond water and sediment. The purposes of this research was to investigate the impact nitrifying bacteria application on the controlling of pathogenic Vibrio sp. bacteria and toxic nitrogen gasses.  Twelve (12) transparent glass bottles (effective volume of 3 L) were used in this research. Tested probiotic was purchased in free market and producer claims to contain Nitrosomonas sp., Nitrosococcus sp., Nitrobacter sp., Bacillus sp., Aerobacter sp., and Pseudomonas sp. The tested media was sea water containing Vibrio sp., TAN, NO2 and NO3 of 54.07 ± 2.93 mg/L; 6.33 ± 0.17 mg/L; 2.43 ± 0.04 mg/L; and 0.46 ± 0.01 mg/L respectively.  The treatment of probiotic was 0 mg/L as a control; 0.1 mg/L; 0.2 mg/L; and 0.4 mg/L with 3 replications. In regard to concentration of Vibrio sp., NH3 and NO2 gasses, treatment doses of 0.1 mg/L (A) resulted a save level within 4 days after treatment, but to more secure in the practical work for shrimp farm, the doses of 0.2 mg/L (B) is suggested.

scholarly journals Livelihood Activities of Female Labor Engaged in Shrimp Farming in South- Western Region of Bangladesh

2015 ◽  
Vol 9 (1) ◽  
pp. 1-22
Author(s):  
Rezwana Zarin
Keyword(s):  
Health Status ◽  
Nutritional Status ◽  
Food Consumption ◽  
Working Environment ◽  
Shrimp Farming ◽  
Living Standard ◽  
Depth Information ◽  
Female Labor ◽  
Shrimp Culture ◽  
The Impact

The main focus of this study is the impact of shrimp culture on livelihood activities of female labor through income and occupation, food consumption, hazardous working environment and so on. Female labors involved in different activities of various shrimp sectors are characterized by diseases, poor income and nutritional status, low quality working environment, harassment and unsocial activities of mischievous persons, social negligence and poor living standard. Moreover, different shrimp-related activities adversely affect the health status of female labor through diseases. The hypothesis of this study is job categories in shrimp sectors deteriorate the health status of female labor in south-western regions of Bangladesh. It tested through Pearson’s chi-square test with cross table analysis. The major objectives of this study are: to know the health status of female labors and occurrence of diseases that result from their occupation; to know the income level as it is associated with food consumption through which health status is maintained. In this study a more or less randomly collected respondents of 120 have been utilized for structured questionnaire survey. Beside, FGD (Focus Group Discussion) method has been used for in depth information. Based on the field data it can be seen that various diseases spread out among female labors through different modes of work, overtime work and unhealthy working environment. These disease occurrences also depend on nutritional status that is determined by income and food consumption of the respondents. Ultimately, poor economic condition leads toward vulnerable health situation. Generally, the female workers suffer from inadequacy of money at the time of treatment. In other sense, female labors face severe income discrimination and irregularity of payment in the work place because they cannot raise their voice. With meager wage they meet their consumption-needs and many of them cannot afford money in time of diseases. For this reason they do not seek treatment. DOI: http://dx.doi.org/10.3329/jbt.v9i1.22774 Journal of Business and Technology (Dhaka) Vol.9(1) 2014; 1-22

Crop rotation with penaeid shrimp (Penaeus monodon).

2020 ◽  
Author(s):  
Khandaker Huq ◽  
Shafiqur Rahman
Keyword(s):  
Crop Rotation ◽  
Penaeus Monodon ◽  
Penaeid Shrimp ◽  
Viral Disease ◽  
Shrimp Farming ◽  
Shrimp Culture ◽  
Usual Practice ◽  
Pests And Diseases ◽  
Risk Of Disease ◽  
Brackish Water Fish

Abstract In crop rotation different crops may be cultivated within the same year to rejuvenate the environment and reduce pests and diseases. Crop rotation in shrimp farming is not popular in Bangladesh as the shrimp bagda (Penaeus monodon) is much more profitable than growing rice or farming brackish water fish. In traditional and improved traditional farms, it is usual practice to stock seed and harvest shrimp year-round. Viral disease occurred in the 1990s and caused mass mortality of penaeid shrimp. To minimise the risk of disease, there is a need to apply crop rotation techniques of shrimp with rice and finfish on farms in coastal areas, as is carried out by some farmers. Shrimp culture is generally done in the dry season (February-June) when water salinity increases (>10ppt) and ceases in the rainy season (July-August) when salinity decreases (<5ppt) because of heavy rainfall. Depending on salinity, some farmers produce two crops. During February-June they produce shrimp and subsequently they produce rice or freshwater fish.

Assessing the sustainability of the Siberian Federal District regions

2020 ◽  
Vol 18 (5) ◽  
pp. 891-908
Author(s):  
T.A. Smirnova
Keyword(s):  
Sustainable Development ◽  
Environmental Factors ◽  
Regional Development ◽  
Federal District ◽  
Integrated Approach ◽  
Siberian Federal District ◽  
The Sustainable Development ◽  
The Impact ◽  
Empirical Analyses

Subject. This article deals with the issues of functioning of the region as a system. Objectives. The article aims to identify the problems of the region's functioning as a system, develop methodological tools to monitor the sustainable development of the Siberian Federal District territories, and determine the the impact of socio-economic and environmental factors on the sustainable development of the region as a whole. Methods. For the study, I used the methods of theoretical, statistical, and empirical analyses taking into account an integrated approach. Results. The article reveals the impact of some individual components of regional development on the sustainability of the territorial system as a whole. Relevance. The results of the study can be used to analyze the sustainability of regions' development.

The Impact Of Emotional Intelligence On Leadership Excellence Of Executive Empoloyees In Public Sector Organizationin Ampara District Of Sri Lanka

2019 ◽  
Vol 118 (9) ◽  
pp. 52-60
Author(s):  
Dr.S. Gunapalan ◽  
Dr.K. Maran
Keyword(s):  
Emotional Intelligence ◽  
Public Sector ◽  
Vital Role ◽  
Public Organization ◽  
Self Awareness ◽  
Public Sector Organization ◽  
Expression Of Emotion ◽  
Asking Questions ◽  
Private Sector Organizations ◽  
The Impact

Emotional Intelligence is play a vital role to decide  leadership excellence. So this paper to study the  impact of emotional intelligence on leadership excellence of executive employee in public sector organization.Hence the objective of this  research   is to identify the  impact of emotional intelligence on leadership excellence of executive employee in Public Sector Organization in Ampara districtof Sri Lanka.emotional intelligence includes the verbal and non-verbal appraisal and expression of emotion, the regulation of emotion in the self and others, and the utilization of emotional content in problem solving. Cook (2006)[1]. Emotional intelligence is one of the  essential skill for leaders to manage their subordinate. Accordingly although there is some research done under “Emotional intelligence on leadership excellence of the executive employee in the public organization in Ampara district so this study full filed the gap. Based on the analysis, Self-awareness, Self-management, Social-awareness and Relationship management are the positively affect to the Leadership excellence. So, executive employees should consider about the Emotions of their subordinators when they completing their targets. leaders should pay the attention for recognize the situation, hove to impact their feelings for the performance & recognized their own feelings. Leaders should consider and see their own emotions when they work with others by listening carefully, understand the person by asking questions, identifying non-verbal expressions and solving problems without helming someone’s. Leadersshould consider their subordinators emotions when they find a common idea, government should give to moderate freedom to executive employees in public organization to take the decision with competing the private sector organizations.

Directions of Accounting Environmental Factors for Forecasting Formation of Agroecosystems

2020 ◽  
pp. 31-35
Author(s):  
L.Z. Khalishkhova ◽  
◽  
A. Kh. Temrokova ◽  
I.R. Guchapsheva ◽  
K.A. Bogаtyreva ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Comparative Analysis ◽  
Environmental Factors ◽  
Environmental Safety ◽  
Logical Analysis ◽  
Management Decisions ◽  
The Sustainable Development ◽  
The Impact

Ensuring the sustainable development of agroecosystems requires research into the justification of the impact of environmental factors on the formation of territorial agroecosystems and identifies ways to take them into account in order to justify management decisions and ensure environmental safety. The main goal of the research within the article is to identify the most significant environmental factors in predicting the formation of agroecosystems. Provisions are devoted to the study of the laws governing the functioning of agroecosystems in order to increase their stability. The methods of comparative analysis, generalization, abstraction, logical analysis are applied. A number of provisions are formulated regarding ways to account for the influence of factors on the formation of key elements of agroecosystems.

scholarly journals Consumption of Enriched Yogurt with PAF Inhibitors from Olive Pomace Affects the Major Enzymes of PAF Metabolism: A Randomized, Double Blind, Three Arm Trial

Biomolecules ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 801
Author(s):  
Maria Detopoulou ◽  
Agathi Ntzouvani ◽  
Filio Petsini ◽  
Labrini Gavriil ◽  
Εlizabeth Fragopoulou ◽  
...  
Keyword(s):  
Platelet Activating Factor ◽  
Lipid Mediator ◽  
Olive Pomace ◽  
Double Blind ◽  
Promising Alternative ◽  
Catabolic Enzymes ◽  
Platelet Activating Factor Acetylhydrolase ◽  
The Impact ◽  
By Products ◽  
Apparently Healthy

Platelet-activating factor (PAF), a proinflammatory lipid mediator, plays a crucial role in the formation of the atherosclerotic plaque. Therefore, the inhibition of endothelium inflammation by nutraceuticals, such as PAF inhibitors, is a promising alternative for preventing cardiovascular diseases. The aim of the present study was to evaluate the impact of a new functional yogurt enriched with PAF inhibitors of natural origin from olive oil by-products on PAF metabolism. Ninety-two apparently healthy, but mainly overweight volunteers (35–65 years) were randomly allocated into three groups by block-randomization. The activities of PAF’s biosynthetic and catabolic enzymes were measured, specifically two isoforms of acetyl-CoA:lyso-PAF acetyltransferase (LPCATs), cytidine 5′-diphospho-choline:1-alkyl-2-acetyl-sn-glycerol cholinephosphotransferase (PAF-CPT) and two isoforms of platelet activating factor acetylhydrolase in leucocytes (PAF-AH) and plasma (lipoprotein associated phospholipase-A2, LpPLA2). The intake of the enriched yogurt resulted in reduced PAF-CPT and LpPLA2 activities. No difference was observed in the activities of the two isoforms of lyso PAF-AT. In conclusion, intake of yogurt enriched in PAF inhibitors could favorably modulate PAF biosynthetic and catabolic pathways.

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