Search results for "Blood meal"
showing 8 items of 8 documents
Transmission studies of a European Sindbis virus in the floodwater mosquito Aedes vexans (Diptera: Culicidae)
2002
Abstract Sindbis viruses are arthropod-borne viruses, which are maintained in nature in a Culex mosquitobird associated transmission cycle, but Aedes species have been suspected as playing a role in infecting humans. In this study, we addressed the question whether or not Germany's most abundant floodwater mosquito species Aedes vexans (Diptera, Culicidae) can serve as an efficient vector for Sindbis viruses. Firstly, the overall susceptibility of Ae. vexans was tested by intrathoracic inoculation of 40 plaque forming units (PFU) Karelian fever virus (KFV, an European Sindbis virus isolate) per female mosquito. Viral titres rose after inoculation reaching a maximum (about a 350-fold increas…
Pilot study on the combination of an organophosphate-based insecticide paint and pyrethroid-treated long lasting nets against pyrethroid resistant ma…
2015
International audience; A pilot study to test the efficacy of combining an organophosphate-based insecticide paint and pyrethroid-treated Long Lasting Insecticide Treated Nets (LLINs) against pyrethroid-resistant malaria vector mosquitoes was performed in a real village setting in Burkina Faso. Paint Inesfly 5A IGR™, comprised of two organophosphates (OPs) and an Insect Growth Regulator (IGR), was tested in combination with pyrethroid-treated LLINs. Efficacy was assessed in terms of mortality for 12 months using Early Morning Collections of malaria vectors and 30-minute WHO bioassays. Resistance to pyrethroids and OPs was assessed by detecting the frequency of L1014F and L1014S kdr mutation…
Identification, ecology and use blood meals from hematophagous Diptera (Glossinidae, Stomoxys and Tabanidae) for noninvasive sampling of wildlife in …
2015
The contact between human and wild fauna has considerably increased during these last decades due to the increase of human population size but also to conservation policies. As a consequence, the number of zoonotic diseases soared with a mean of six new infectious diseases per year, 75% of whom being vectorially transmitted. The way to avoid the human contamination by these emergent diseases is based on the efficient vector control resulting from a deep knowledge of the ecology and the feeding behavior of the different vector species. During our work, we have identified and characterized the ecology of 6 tsetse species (Glossina palpalis palpalis, G. fuscipes fuscipes, G. fusca congolense, …
An insight into the proteome of the saliva of the argasid tick Ornithodoros moubata reveals important differences in saliva protein composition betwe…
2013
26 páginas, 3 tablas, 6 figuras. -- The definitive version is available at http://www.elsevier.com
Acute toxicity of experimental fertilizers made of blood meal, spent coffee ground and biomass ash
2017
Przepisy prawa wymuszają stopniowe ograniczanie deponowania odpadów ulegających biodegradacji na składowiskach. Po wydzieleniu frakcji biodegradowalnej ze zmieszanych odpadów komunalnych lub dzięki selektywnej zbiórce tej frakcji można ją zastosować w nawożeniu organicznym. W szczególności materia organiczna zawarta w odpadach przemysłu spożywczego lub powstająca w gospodarstwach domowych, pod warunkiem braku zanieczyszczeń innymi rodzajami odpadów może być wykorzystywana jako nawóz organiczny. W pracy przedstawiono wyniki badań nad toksycznością ostrą mieszaniny wykonanej z odpadów poekstrakcyjnych kawy (SCG) modyfikowanych popiołem powstającym z niskotemperaturowego spalania biomasy lub p…
Acute Toxicity of Experimental Fertilizers Made of Spent Coffee Grounds
2017
Sustainable agriculture places new demands on agricultural practice and, in particular, plant protection treatments and fertilization. Therefore, an increase in demand for organic fertilizers of good quality is expected. In particular, the organic matter contained in the waste of the food industry or generated in households, in the absence of contamination, can be used for the production of “fertilizer”, which could be used in organic crop production. The paper presents basic characteristics of tested mixtures and the results of testing for acute toxicity of the mixture made from spent coffee grounds (SCG) modified with ash arising from the low-temperature combustion of biomass or magnesium…
Reproductive Physiology ofAedes(Aedimorphus)vexans(Diptera: Culicidae) in Relation to Flight Potential
2001
Total protein, lipid, and glycogen of Aedes vexans (Meigen) were related linearly to body size at eclosion. Starvation after emergence led to the determination of minimal irreducible amounts of protein, lipid, and glycogen and the availability of the teneral reserves, whereas access to sucrose revealed the potential for reserve synthesis. Glycogenesis and lipogenesis increased reserves approximately 10-fold the teneral value within 1 and 2 wk after emergence, respectively. Carbohydrate feeding was an essential behavior before blood feeding and oogenesis commenced. Female flight was tested on a flight mill. Maximal flights of 10-17 km in a single night occurred at 2 wk posteclosion and paral…
Acute toxicity of experimental fertilizers made of blood meal, spent coffee ground and biomass ash
2017
Abstract The study presents the results of research on the acute toxicity of a fertilizer formulas made of spent coffee ground (SCG) with addition of ash from low-temperature combustion of biomass or ash with an admixture of magnesium sulphate and blood meal. The experimental fertilizer formulas included also rape oil used as a plasticizer for controlling the nutrients release from the fertiliser. Mustard (Sinapis alba L.), oats (Avena sativa sp. L.), cucumber (Cucumis sativus L.) and cress (Lepidium sativum L.) were used as test plants species in the experiment. The toxicity tests were performed using a standard procedure of 72 h with the use of Phytotoxkit microbiotest and fertilizer appl…