EEA Rafaela: Envíos recientes
Mostrando ítems 561-580 de 601
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Molecular evidence and additional morphological characters to distinguish Ornithodoros brodyi and Ornithodoros yumatensis (Ixodida: Argasidae) in their different developmental stages
(2017)Ornithodoros brodyi and Ornithodoros yumatensis are two species distributed in the Americas and associated with bats and caves. Both species have similar morphology, and the diagnostic traits of adults have not been detailed ... -
The presence of Rhipicephalus muhsamae north of the Sahara
(2017)The occurrence of male and female Rhipicephalus muhsamae feeding on dogs and a horse in Upper Egypt is described. The morphological identification was verified using partial 16S rRNA gene sequences. By applying respective ... -
Presence of Borrelia in different populations of Ixodes pararicinus from northwestern Argentina
(2017)This work was performed to evaluate the presence of Borrelia in different populations of Ixodes pararicinus from northwestern Argentina (Jujuy, Salta and Tucumán provinces). Questing adults and nymphs of I. pararicinus ... -
Anaerobically incubated nitrogen improved nitrogen diagnosis in corn
(2017)Current N diagnostic methods for corn (Zea mays L.) are often based on the nitrate nitrogen (NO3 ––N) concentration before planting (pre-plant nitrate test, PPNT) and nitrate nitrogen (NO3––N) concentration at V6 stage ... -
Eficiencia de uso de nitrógeno en cebada en el sudeste bonaerense : efecto de aplicaciones divididas = Nitrogen use efficiency of barley in the southeastern Buenos Aires: effect of split applications
(2015-06)El nitrógeno (N) es el principal nutriente que limita el rendimiento y la calidad industrial de cebada (Hordeum vuggare L). El fraccionamiento del N en ambientes húmedos, permitiría maximizar la eficiencia de uso de N ... -
Key management practices to prevent high infestation levels of Varroa destructor in honey bee colonies at the beginning of the honey yield season
(2016)Varroa destructor is considered one of the main threats to worldwide apiculture causing a variety of physiological effects at individual and colony level. Also, Varroa mites are often associated with several honey bee ... -
High prevalence of “Candidatus Rickettsia amblyommii” in Amblyomma ticks from a Spotted Fever Endemic Region in North Argentina
(2016)Ticks from an endemic Spotted Fever region in Argentina were analysed by PCR for Spotted Fever Group Rickettsiae. DNA of “Candidatus Rickettsia amblyommii” was found in 21.3% of Amblyomma hadanii and in 44.0% of A. neumanni. ... -
A novel spotted fever group Rickettsia infecting Amblyomma parvitarsum (Acari: Ixodidae) in highlands of Argentina and Chile
(2016)The tick Amblyomma parvitarsum (Acari: Ixodidae) has established populations in Andean and Patagonic environments of South America. For the present study, adults of A. parvitarsum were collected in highland areas (elevation ... -
Some ecological aspects of free-living Haemaphysalis juxtakochi Cooley, 1946 (Acari: Ixodidae) in Panama
(Universidad de Córdoba (Colombia), 2014)Objective. To describe the seasonal variation and perform a comparative analysis on habitat preference of Haemaphysalis juxtakochi in Panama. Materials and methods. Ticks were collected from the vegetation, using a white ... -
Identificación de factores de riesgos asociados a la presentación de endometritis en bovinos lecheros
(Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, 2014)El objetivo del presente trabajo fue identificar factores asociados a la presentación de endometritis en vacas lecheras posparto. Se muestrearon 152 vacas (aproximadamente con 40 días posparto) pertenecientes a cuatro ... -
Distribution and prevalence of Nosema apis and N. ceranae in temperate and subtropical eco-regions of Argentina
(2016-11)A total of 361 colonies from 59 apiaries located in two temperate and three subtropical eco-regions were examined during the post-harvest period to determine distribution and prevalence of Nosema spp. Apiaries from subtropical ... -
Aspectos de la respuesta inmune innata en las infecciones intramamarias causadas por Staphylococcus aureus en bovinos = Aspects of the innate immune response to intramammary Staphylococcus aureus infections in cattle
(2014-10)Staphylococcus aureus es el principal agente causante de mastitis bovina en Argentina y en el mundo. Esta bacteria ocasiona infecciones crónicas que generan importantes pérdidas a los productores y la industria lechera. ... -
Prevalence of honey bee (Apis mellifera) viruses in temperate and subtropical regions from Argentina
(2017)In Argentina, bee virus studies are still incipient, and there are no studies regarding the climatic effect. The aim of this study was to assess and compare the presence of honeybee viruses in different climatic regions ... -
Risk factors for the presence of Deformed wing virus and Acute bee paralysis virus under temperate and subtropical climate in Argentinian bee colonies
(2017-05)Beekeepers all across the world are suffering important losses of their colonies, and the parasitic mites Varroa destructor and Nosema sp, as well as several bee viruses, are being pointed out as the possible causes of ... -
Varroa destructor and viruses association in honey bee colonies under different climatic conditions
(2016-06)Honey bee colonies are threatened by multiple factors including complex interactions between environmental and diseases such as parasitic mites and viruses. We compared the presence of honeybee-pathogenic viruses and Varroa ... -
Bacteria of the genera Ehrlichia and Rickettsia in ticks of the family Ixodidae with medical importance in Argentina
(2016)The aim of this study was to get an overview about the occurrence of bacteria from the genus Ehrlichia and Rickettsia in ixodid ticks with medical importance in Argentina. Therefore, in 2013 and 2014, free-living ticks ... -
Detection of Staphylococcus aureus adhesion and biofilm-producing genes and their expression during internalization in bovine mammary epithelial cells
(2016)Staphylococcus aureus is one of the most prevalent pathogens isolated from bovine mastitis, causing chronic intramammary infections (IMI) that limit profitable dairying. The course of infection is often associated with ... -
Borrelia burgdorferi sensu lato in Ixodes cf. neuquenensis and Ixodes sigelos ticks from the Patagonian region Argentina
(2016)This study was conducted to detect Borrelia burgdorferi sensu lato infection in ixodid ticks from the Patagonia region in the south of Argentina. Therefore, ticks were collected on rodents in the provinces of Chubut, Río ... -
Ixodes schulzei Aragão & Fonseca, 1951 in Argentina
(2016-06)Two females of Ixodes schulzei Aragão & Fonseca, 1951 were collected from Nectomys squamipes (Rodentia: Cricetidae: Sigmodontinae) at Iguazú National Park, Misiones Province, Argentina. This is the first record of this ... -
Liolaemus lizards (Squamata: Liolaemidae) as hosts for the nymph of Amblyomma parvitarsum (Acari: Ixodidae), with notes on Rickettsia infection
(2016)Adults of Amblyomma parvitarsum are common ectoparasites of South American camelids of the genera Lama and Vicugna, occuring in highlands of Argentina, Bolivia, Chile, Peru and also in Argentinean Patagonia. Whereas larval ...