scholarly journals Histological Sublethal Concentration Effect on the Liver of Clarias Batrachus (Linn.) Exposed to Malathion

2020 ◽  
Vol 2 (11) ◽  
pp. 1-3
Keyword(s):  
Freshwater Fish ◽  
Biochemical Parameters ◽  
Crop Production ◽  
Histological Study ◽  
Sublethal Concentration ◽  
Clarias Batrachus ◽  
Host Fish ◽  
Vacuolar Degeneration ◽  
Agricultural Pesticides ◽  
The World

Malathion is a vital agent and indicator that kills targeted (harmful) organic of flora and fauna. Word ‘pest’ has comprised of detrimental animals, plants and microorganisms. These are widely used all over the world in agriculture. several agricultural pesticides nowadays in the trend in which organisms toxicity and harmful alterations are noticeable. Malathion pesticides used as agricultural benefits for crop production. This type of pesticide mostly affects the histological and biochemical parameters of the organism. This study focuses on alterations of malathion observing special site tissues of freshwater fish Clarias batrachus (Linn.,1758). Malathion (50% EC) was ordered from super ford insecticides limited, Sikandrabad (BSR) and a volumetric practical performed to result out the LC50 96 hours of malathion. Value of malathion LC50 96 hours calculated 0.25 ppm. The SLC as 0.025 parts per million was fixed by using 1/10th of LC50 at 96 hours [1]. The effect of malathion SLC (1/10 of 96 hours of LC50) was investigated on the histology of the liver in treated groups of host fish. Specific changes were checked in liver histology using control and treated groups. Histological observations as hepatocytes degeneration, Necrosis in hepatocytes, vacuolar degeneration, congestion were recorded and analyses as per experimental requirement. The main objective of this article is to carry out a histological study to check the impacts of the Sublethal concentration of Malathion (EC50%) on the liver of “Clarias batrachus.”

scholarly journals Salicylic acid and kaolin effects on pomological, physiological, and phytochemical characters of hazelnut (Corylus avellana) at warm summer condition

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Marziyeh Khavari ◽  
Reza Fatahi ◽  
Zabihollah Zamani
Keyword(s):  
Salicylic Acid ◽  
Crop Production ◽  
Corylus Avellana ◽  
Kernel Weight ◽  
Population Increase ◽  
Tolerance Index ◽  
Biotic And Abiotic Stresses ◽  
The World ◽  
Warm Summer ◽  
Supporting Materials

AbstractClimate change and population increase are two challenges for crop production in the world. Hazelnut (Corylus avellana L.) is considered an important nut regarding its nutritional and economic values. As a fact, the application of supporting materials as foliage sprays on plants will decrease biotic and abiotic stresses. In this study, the effects of salicylic acid (0, 1 mM and 2.5 mM) and kaolin (0, 3% and 6%) sprays were investigated on morphological, physiological, pomological, and biochemical characteristics of hazelnut. The results showed that 1 mM salicylic acid and 6% kaolin had the best effects on nut and kernel weight compared to control. Biochemical parameters such as chlorophyll a, b, a + b, and carotenoid contents showed that salicylic acid and kaolin improved pigment concentration. Proline and antioxidant contents such as phenolic acids, SOD, APX, and CAT enzyme activities increased by these applications. On the other hand, lipid peroxidation, protein content, and H2O2 content were decreased. Based on the tolerance index result, Merveille de Bollwiller cultivar showed the highest tolerance while 'Fertile de Coutard' had the lowest value. Therefore, hazelnut performance may be improved through exogenous application of the signaling (salicylic acid) and particle film (Kaolin) compounds in warmer climates.

scholarly journals The use of vitreous renal chemistries in the discrimination of postmortem fresh water drowning

2021 ◽  
Vol 5 ◽  
pp. 239784732199752
Author(s):  
Eni-yimini Solomon Agoro ◽  
Charles German Ikimi ◽  
Tommy Edidiong
Keyword(s):  
Fresh Water ◽  
Biochemical Parameters ◽  
World Health ◽  
The World ◽  
Diacetyl Monoxime ◽  
Water Pond ◽  
The Mean ◽  
Health Organization ◽  
Post Hoc ◽  
Cover Up

Background: The World Health Organization (WHO) has estimated drowning as the leading cause of unintentional death in the world, with 372,000 deaths reported annually. Not all drowning are unintentional; some could be disguised to cover up an act of heinous criminality. This study was aimed at using some vitreous renal function biochemical parameters as a discriminant of postmortem fresh water drowning. Twelve albino rabbits constituted the sample size as validated by Mead’s formula. The study was divided into three groups; the control, postmortem-drowned and truly drowned as mimicked using an artificial fresh water pond. Vitreous humours were extracted using Coe method. The vitreous renal chemistries were analysed using diacetyl monoxime, Jaffe’s test, uricase and ion-selective electrode (ISE) methods respectively. Result: The mean of vitreous creatinine, urea, uric acid, Na+, K+, Cl−, Ca2+, glucose and CO2 of the control, postmortem-drowned and truly drowned groups were compared using One-way Anova (post-hoc-LSD) with the aid of SPSS Inc., Chicago, IL, USA; Version 18–21 package. The findings revealed a significant increase in concentrations of vitreous creatinine, glucose, Ca2+ and K+ of the drowned death group, whereas vitreous concentrations of CO2 and urea significantly decreased when compared to the controls and/or postmortem-drowned death. Conclusion: The study has shown that some of the studied vitreous biochemical parameters could be used as an ancillary tool in discriminating death due to fresh water drowning from that of disguised or postmortem-drowned death.

The role of quality seed use for world crop production with special reference to the developing countries

1975 ◽  
Vol 8 (5) ◽  
pp. 268-270 ◽  
Author(s):  
W P Feistritzer
Keyword(s):  
Developing Countries ◽  
Special Reference ◽  
Crop Production ◽  
Stages Of Development ◽  
Short Article ◽  
Geographical Regions ◽  
The World ◽  
The Future ◽  
Pasture Plants

In this short article the author indicates the present stages of development of variety evaluation, testing, certification, production and marketing of quality seed—of cereals, industrial crops, pasture plants and vegetables—in major geographical regions of the world and draws attention to some of the underlying problems which must be faced in the future if further progress is to be made.

scholarly journals Threatened Fishes of the World: Orsinogobius Croaticus (Mrakovčić, Kerovec, Mišetić and Schneider, 1996) (Teleostei: Gobiidae)

2017 ◽  
Vol 75 (1) ◽  
pp. 30-35 ◽  
Author(s):  
Sven Horvatić ◽  
Zoran Marčić ◽  
Milorad Mrakovčić ◽  
Perica Mustafić ◽  
Ivana Buj ◽  
...  
Keyword(s):  
Habitat Fragmentation ◽  
Alien Species ◽  
Freshwater Fish ◽  
Habitat Quality ◽  
Species Conservation ◽  
Distribution Range ◽  
Limited Distribution ◽  
The World ◽  
Threatened Fishes ◽  
Adriatic Basin

Abstract Orsinogobius croaticus is a freshwater fish with a small and limited distribution range in the Adriatic basin in Croatia and Bosnia-Herzegovina, where it inhabits cold karstic rivers and springs. The main threats to its populations include habitat fragmentation, declining habitat quality and the introduction of alien species. Conservation recommendations are proposed to improve effective habitat preservation and to expand the knowledge about this species.

scholarly journals Plant Physiology and some aspects of future agriculture.

1970 ◽  
Vol 18 (1) ◽  
pp. 49-61
Author(s):  
E.C. Wassink
Keyword(s):  
Plant Physiology ◽  
Solar Energy ◽  
Energy Conversion ◽  
Agricultural Production ◽  
Human Population ◽  
Crop Production ◽  
Agricultural Practices ◽  
Solar Energy Conversion ◽  
Research Station ◽  
The World

From considerations of solar energy conversion data it is suggested that the total area required for feeding the entire human population of the world according to present agricultural practices and nutritional standards is relatively small, being about 2000 x 2000 km. This area includes roads etc. and that needed for crop production would be only 25% of this figure. The author proposes that agricultural production may benefit from the setting up, in various parts of the world, of 3000 units each about 30 x 40 km in area and devoted to a limited number of crops and served by its own research station. Some consequences of this suggestion are discussed.-F.A.S. (Abstract retrieved from CAB Abstracts by CABI’s permission)

scholarly journals A review of length-weight relationships of freshwater fishes in Malaysia

2018 ◽  
Vol 20 (1) ◽  
pp. 55-68 ◽  
Author(s):  
Amonodin Mohamad Radhi ◽  
Mohd-Fadzil Nurul Fazlinda ◽  
Mohammad Noor Azmai Amal ◽  
Hashim Rohasliney
Keyword(s):  
Freshwater Fish ◽  
Fish Species ◽  
Environmental Changes ◽  
Meta Analysis ◽  
Freshwater Fishes ◽  
Clarias Batrachus ◽  
Ecological Health ◽  
Allometric Growth ◽  
Freshwater Fish Species

Abstract This manuscript reviews the length-weight relationships (LWRs) of freshwater fishes in Malaysia. A total of 102 LWRs of fishes gathered from literature pertaining to 64 freshwater fish species were analysed. A meta-analysis from 13 previous reports showed that the b values was ranged from 2.19 (Clarias batrachus) to 4.106 (Barbodes binotatus). Out of 64 observed species, 47 species (11 families) experienced positive allometric growth, while another 23 species (eight families) and 31 species (12 families) were recorded under isometric and negative allometric growth, respectively. The fish LWRs observed can be used as an indicator of environmental changes and fish ecological health for freshwater fishes in Malaysia.

Integrated fish farming: An international effort

1986 ◽  
Vol 1 (3) ◽  
pp. 127-130 ◽  
Author(s):  
Gerald Schroeder
Keyword(s):  
Green Manure ◽  
Crop Production ◽  
Crop Residues ◽  
Fish Farming ◽  
Microbial Flora ◽  
Fish Pond ◽  
Livestock Manure ◽  
International Effort ◽  
The World ◽  
Home Consumption

AbstractIn much of the developing world, the high cost of purchased feeds makes meat and milk too expensive to be consumed by the producers' own families. A fish pond integrated with livestock or crop production provides an important source of animal protein for home consumption or sale. This protein involves almost no cash costs, since the needed nutrients and energy are supplied by crop residues, green manure, livestock manure and sunlight. Conversion of manure into animal flesh is possible because the anoxic sediments support a microbial flora similar to that of the rumen. Although integrated fish farming has been practiced for thousands of years in China, it has not yet been successfully adapted to all regions for which it potentially is applicable. A program in Wuxi, China brings together students and scientists from all over the world who are working towards that goal.

EVALUATION OF THE EFFECTIVENESS OF THE DEVELOPMENT OF ORGANIC CROP PRODUCTION

2020 ◽  
Vol 10 (5) ◽  
pp. 749-763
Author(s):  
A.V. Shelenok ◽  
Keyword(s):  
Organic Farming ◽  
Organic Agriculture ◽  
Crop Production ◽  
Farming Systems ◽  
Developed Countries ◽  
Agricultural Crops ◽  
Advantages And Disadvantages ◽  
Slow Development ◽  
Organic Products ◽  
The World

The article examines intensive and organic technologies for growing agricultural crops, their impact on the environment, human health, indicates what are the advantages and disadvantages of organic agriculture. It is noted that with intensive technologies for growing agricultural crops, their yield increases, but if the doses of chemicals are not observed, soil fertility is disturbed, the environment is polluted. Devoid of the disadvantages inherent in intensive technologies, organic farming is significantly inferior in productivity to it, due to which it is not able to reach the same production volumes, to ensure a comparable level of domestic consumption, which is demonstrated by traditional farming. The article compares the effectiveness of traditional and organic agronomic farming systems. It is shown that in the case of comparability of yield indicators, traditional technologies at lower selling prices are more effective in terms of profit and profitability indicators. The reasons for the slow development of the organic segment in the agricultural production of Russia are revealed. In this regard, the topic of support for foreign and Russian agricultural producers, including organic products, as well as the underdevelopment of its domestic market is touched upon. It is noted that, in contrast to developed countries, Russia’s share in the world market for organic products is insignificant. Therefore, it is too early to talk about the prospects for the development of organic agriculture in Russia. In the world, organic farming is stimulated, it occupies its own niche, but in all respects it lags far behind the traditional method of growing agricultural products. Its share in the world food market ranges from 2.6 to 3%.

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