Search Results for: Carp
Effect of the herbicide Avans 330 SL on the liver pathomorphology of clinically healthy carp (Cyprinus carpio L.) and carp infected by Ichthyophthirius multifiliis
Abstract: This study was conducted on fingerlings of carp. Cyprinus carpio L., that were either clinically healthy or infected with a natural invasion of the ciliate, Ichthyophthirius multifiliis. The fish were exposed for 96 h to Avans 330 SL in a concentration of 2 mg trimethylosulfonium glyphosate l-1 water in order to establish its effect …
Effects of the herbicide Roundup on the ultrastructural pattern of hepatocytes in carp (Cyprinus carpio)
Abstract: Experimental studies were performed on healthy, 80-100 g carp (Cyprinus carpio). Fish were exposed by emersion in Roundup (205 mg of glyphosate/l or 410 mg of glyphosate/l) in concentrations of 40- to 20-fold lower than those used in practice. Electron microscopy revealed that the herbicide caused appearance of myelin-like structures in carp hepatocytes, swelling …
Measuring transport of lawn-applied herbicide acids from turf to home: Correlation of dislodgeable 2, 4-D turf residues with carpet dust and carpet surface residue
Abstract: Transport of lawn-applied herbicides into the home via walking over treated turf, defined here as track-in, was measured at five different times out to 1 week after application. Residues of turf-applied 2,4-D and dicamba were measured in carpet dust and on the carpet surface after track-in. Both carpet dust levels and carpet surface dislodgeable residue …
A study on the toxicity of herbicides atrazine and glyphosate on physiological, biochemical and ultrastructural aspects of the fingerlings of Indian major carp, Labeo Rohita (Hamilton)
Abstract: Fish proteins occupy an important place in human nutrition. They are well balanced with essential amino acids and are comparable to other proteins of animal origin. Moreover, carbohydrate content of the fish flesh is very low. Considering their nutritional value, it is essential for any nation, which is desirous of developing this rich protein …
Effect of a glyphosate-based herbicide in Cyprinus carpio: Assessment of acetylcholinesterase activity, hematological responses and serum biochemical parameters
Abstract: The objective of this study was to investigate the toxicity effects of acute and sublethal of Roundup® as a glyphosate-based herbicide on acetylcholinesterase (AChE) activity and several hematological and biochemical parameters of Cyprinus carpio. The LC50-96 h of Roundup® to C. carpio was found to be 22.19 ppm. Common carp was subjected to Roundup® …
Assessment of the potential toxicity of glyphosate-based herbicides on the photosynthesis of Nitella microcarpa var. wrightii (Charophyceae)
Abstract: Although macroalgae are considered one of the most important primary producers in streams, to our knowledge there has been no research on the effects of herbicides on these organisms. Such studies are crucial for improving our understanding of the impact of these substances on stream ecology. In this study, we assess the effects of …
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Search the primary studies database using one of the pre-defined keyword searches below. # 2,4-Dichlorophenoxyacetic acid (2,4-D) 35S A Acetylcholinesterase Aegilops cylindrica Aflatoxin Africa African Catfish (Clarias Gariepinus) African clawed frog (Xenopus laevis) Agrobacterium Agroecology Agrostis Agrostis stolonifera Alfalfa (Medicago sativa) Allergy Alpaida Veniliae Amaranthus palmeri Amaranthus tuberculatus Ambrosia artemisiifolia Ambystoma gracile Ambystoma laterale Ambystoma …
Intensity of growth and reproductive ability of pigs at conditions of consuming GM-soya
Abstract: Soya takes one of leading place in the balance of protein fodder cultures and in its grain there is a high contains of protein. Its amino acids composition is the most approximate to feed-staffs of animal origin. Considerable percent of sowing areas are allocated under high-yielding and technological genetic-modified lines of soya which is …
Seed‐specific overexpression of phytoene synthase: Increase in carotenoids and other metabolic effects
Abstract: A bacterial phytoene synthase (crtB) gene was overexpressed in a seed‐specific manner and the protein product targeted to the plastid in Brassica napus (canola). The resultant embryos from these transgenic plants were visibly orange and the mature seed contained up to a 50‐fold increase in carotenoids. The predominant carotenoids accumulating in the seeds of the …
Influence of water polluted with herbicide Roundap on the organism of fish
Abstract: The effects of sublethal concentrations of Roundup [glyphosate] (4, 6, 8 mg/litre) in water on non-specific immunity and the liver and kidneys was investigated in 120 healthy carp weighing 60-80 g. Non-specific immunity, phagocytic activity of blood and kidney neutrophils and macrophages, and lysozyme level all decreased during the experiment. Histopathology revealed degenerative changes …
Assessment of the genotoxic impact of pesticides on farming communities in the countryside of Santa Catarina State, Brazil
Abstract: The aim of this study was to assess the use of pesticides on farms located in the Lambedor River watershed in Guatambu, State of Santa Catarina, as well as to determine, by micronucleus testing, the risk of genotoxic impact. Samples from locally collected Cyprinus carpio, Hypostomus punctatus, Rhamdia quelen and Oreochromis niloticus gave evidence …
Response to review by Trevor Charles re: Precautionary Principle
Abstract: A few days ago, Trevor Charles posted a review of our paper entitled “The Precautionary Principle (with Application to the Genetic Modification of Organisms).” Here we provide a response. Keywords: Precautionary Principle, Carpenter Fallacy, Probability, Biology, Systems Engineering Citation: Taleb, N.N., Read, R., Douady, R., Norman, J., and Bar-Yam, Y., 2014, November 28. Response …
Malignant lymphomas and occupational exposures
Abstract: The effects of potential risk factors for Hodgkin’s disease (HD) and for non-Hodgkin lymphomas (NHL) were evaluated in a case-referent study encompassing 54 cases of HD, 106 cases of NHL, and 275 referents, all alive. Exposure information was obtained by questionnaires posted to the subjects. Crude rate ratios were increased for various occupational exposures …
Response to: Transgenic insecticidal corn: The agronomic and ecological rationale for its use
Text: We agree with Obrycki et al. (2001) that a broad-based ecological approach for new pest management technologies is desirable, but we unanimously and strongly disagree with some of their assumptions and conclusions about Bt corn. Bt corn is corn that has been genetically engineered to produce insecticidal proteins from the bacterium Bacillus thuringiensis. Because …
Distribution of 2, 4-dichlorophenoxyacetic acid in floor dust throughout homes following homeowner and commercial lawn applications: quantitative effects of children, pets, and shoes
Abstract: Transport of lawn-applied 2,4-D into 13 actual homes was measured following both homeowner and commercial application of this herbicide to residential lawns. Collection of floor dust in five rooms of each house, corresponding to an entryway, living room, dining room, kitchen, and a child’s bedroom, both prior to and after application, indicated that turf …
Adult and children’s exposure to 2,4-D from multiple sources and pathways
Abstract: In this study, we investigated the 2,4-dichlorophenoxyacetic acid (2,4-D) herbicide exposures of 135 preschool-aged children and their adult caregivers at 135 homes in North Carolina (NC) and Ohio (OH). Participants were randomly recruited from six NC and six OH counties. Monitoring was performed over a 48-h period at the participants’ homes. Environmental samples included …
Proximity to crops and residential exposure to agricultural herbicides in Iowa
Abstract: Rural residents can be exposed to agricultural pesticides through the proximity of their homes to crop fields. Previously, we developed a method to create historical crop maps using a geographic information system. The aim of the present study was to determine whether crop maps are useful for predicting levels of crop herbicides in carpet …
Herbicide contamination of freshwater ecosystems: Impact on microbial communities
Introduction: Human society relies on surface freshwater ecosystems for many goods and services (drinking water, recreational facilities…), which places these systems at the center of a web of ecological, economic and political interests (Wilson & Carpenter, 1999). They are also being subjected to increasing pressure resulting from anthropogenic activities, including contamination by a variety of …
Malignant lymphoproliferative diseases in occupations with potential exposure to phenoxyacetic acids or dioxins: A register‐based study
Abstract: The Swedish Cancer Environment Register (CER) is a linkage of census data (e.g., on occupations) with the Swedish Cancer Register. It has been used in different studies to generate hypotheses on occupational risk factors for malignant tumors. In this study the risk for malignant lymphoma and multiple myeloma in occupations with potential exposure to …
