The plants responded to the addition of vermicompost, with a 20% increase in size. Palavras-chave: nursery; earthworm; Eisenia foetida. · resumo em Espanhol. Lumbricus terrestris, especie conocida por sus características edáficas, agronómicas .. anélido (particularmente las especies Eisenia fetida y E. andrei) en los. Effects of ionizing radiation on the earthworm, Eisenia foetida, were as características químicas e a atividade microbiana do vermicomposto não foram.

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This work is related to a previous work made in the Technical University of Manabi, forprotein supplements production from unconventional raw materials, specifically Earthworm Eisenia foetida flour, using various ecotoxicological methods to evaluategeneratedwaste in pilot production, in order to contribute to compliance the environmental regulations.

Our results suggest that Eisenia fetida was the species of earthworms used in the eiesnia process. Previously, investigations have been limited to life-cycle level effects of this protein on earthwormsand mostly on E.

Eisenia Andrei is known under various generic names such as Californian daisy, red daisy, tiger worm etc. Earthworm symbiont Verminephrobacter eiseniae mediates natural transformation within the host egg capsules using type IV pili.

And the sequential extraction was also used to determine the mobility of metals in soil which could be used as to predict bioavailability and compare that with bioaccumulation factor.

After 28 days of exposure to soils, worms were transferred to clean soils for elimination.

Eisenia andrei (Oligochaeta) as bioindicator of soil contamination by hexachlorobenzene (HCB)

The hormetic dose-response relationships induced by environmental toxic agents are often characterized by low-dose stimulation and high-dose inhibition. Chronic soil tests and acute contact tests were performed, and gene expression was analyzed in total tissue and in masculine reproductive organs of the earthworms. Results indicate that the presence of TEL in leaded gasoline and lead oxide has a significant effect on behavior, morphology, and histopathology of earthworms.


The results indicated that heavy metals concentration decreased with increasing vermicomposting time.

Bioconcentration eisena retention of 14 C-hexachlorobenzene HCB: Taxonomic justification of sympatric Eisenia nordenskioldi mongol and Eisenia nordenskioldi onon ssp. For some of these endpoints, in particular for genetic effects, the dose U concentration -effect relationships have been found to be non-linear.

Características da minhoca Eisenia foetida – Benefícios e mais-valias ambientais

The present results indicated that the CAP contents of 0. Compared to the soil Cu-based EC50s for cocoon production, the tissue Cu-based EC50s had less variation among soils, indicating that metals in tissue were more relevant to toxicity than metals in soil and hence represented better measurements of bioavailability.

The results showed that earthworm survival and body weight change were less sensitive to Cu than earthworm cocoon production. Therefore, it is important to know its properties in order to apply proper amounts of it.

In recent years, there has been a growing interest in the development of sub-lethal earthworm biomarkers as they are relevant indicators of environmental change and they are among the five key indicators for ecotoxicological testing of industrial chemicals determined by the OECD. A pilot study with Fletida rubellus showed that steady-state body residues were well correlated to E. Data indicate also that after 56 days of incubation the average fractions of bismuth available extracted by KNO 3 aqueous solution in soil without earthworms varied from caracteristiccas.

They also demonstrate that the Canada-wide soil standards based on individual distillates are likely protective. Responses of growth inhibition and antioxidant gene expression in earthworms Eisenia fetida exposed to tetrabromobisphenol A, hexabromocyclododecane and decabromodiphenyl ether.


The weight of earthworms was significantly reduced at 5. In our tests, we were able to show that the earthworm toxicity was strongly dependent on the soil type, with strongest effect in low organic matter soil. Hepatic sequestration of oxychlordane. This suggests that paramyosin does not form a continuous filament. The factor under study was the percentage of earthworm flour in a basic diet.

These changes in the activities of antioxidant enzymes and GST indicated that [C8 mim]Cl could induce oxidative damage in earthworms. Similarly, sublethal concentration of chemical pesticides 5 and 6. We demonstrate that in as few as 12 trials the behavior of the master worms comes under the control of this contingency.

Solid waste management struggles with the sustainable disposal of used tires. The median lethal concentrations LC 50 were derived from a h paper contact test and from artificial soil tests.

Full Text Available Survival of earthworms in the environment depends on their ability to recognize and eliminate potential pathogens.

The earthworm Eisenia fetida is the most commonly used worm for worm-supported composting of organic residues. Investigation of the toxicokinetics of petroleum hydrocarbon distillates with the earthworm Eisenia andrei.

Replacement of fish meal by meal worm Eisenia foetida in the feed of broilers as an alternative source of protein.