Artículos científicos: Envíos recientes
Mostrando ítems 241-260 de 515
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First detection of “Candidatus Rickettsia wissemanii” in Ornithodoros hasei (Schulze, 1935) (Acari: Argasidae) from Argentina
(Elsevier, 2020-07)The aim of this study was to assess the presence of Rickettsia in soft ticks (Acari: Argasidae) collected from insectivorous bats (Chiroptera) in Santa Fe province, Argentina. First, a subset of ticks were mounted in Hoyer’s ... -
Phylogenetic divergence between Rickettsia amblyommatis strains from Argentina
(Elsevier, 2020-02)The aim of this study was to investigate if there is a phylogenetic divergence of Rickettsia amblyommatis strains from different phytogeographic provinces of Argentina and South America. Therefore, ompA and ompB gene ... -
Discovering ancestors and connecting relatives in large genomic databases
(Elsevier; American Dairy Science Association, 2020-02)Genomic evaluation has improved both plant and animal breeding by allowing more accurate estimation of an individual's genetic potential. Because often only a small proportion of the population to be evaluated has been ... -
Development and evaluation of a double-antigen sandwich ELISA to identify Anaplasma marginale–infected and A. centrale–vaccinated cattle
(American Association of Veterinary Laboratory Diagnosticians, 2019-11)Bovine anaplasmosis is a worldwide infectious disease caused by the intraerythrocytic bacterium Anaplasma marginale, which is transmitted by ticks and fomites. A. centrale is a less virulent subspecies used as a live ... -
Risk factors of S. aureus intramammary infection in pre partum dairy heifers under grazing conditions and molecular characterization of isolates from heifers and cows
(Cambridge University Press, 2020-02)The aims of the research reported here were to identify potential risk factors associated with the presence of Staphylococcus aureus intramammary infection (IMI) in pre partum dairy heifers on 17 dairy farms from three ... -
A vaccine using Anaplasma marginale subdominant type IV secretion system recombinant proteins was not protective against a virulent challenge
(PLOS; National Center for Biotechnology Information, 2020-02)Anaplasma marginale is the most prevalent tick-borne livestock pathogen with worldwide distribution. Bovine anaplasmosis is a significant threat to cattle industry. Anaplasmosis outbreaks in endemic areas are prevented via ... -
Comprehensive evaluation and implementation of improvement actions in bovine abattoirs to reduce pathogens exposure
(Elsevier, 2020-03)The slaughter process plays an important role in animal welfare, meat quality, safety and public health through the meat production chain. In this study, we performed a three-stage evaluation: I) comprehensive evaluation, ... -
Variabilidad genotípica y ambiental del peso, tamaño y aceite del grano de girasol (Helianthus annuus L.) en el Noreste argentino
(Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, 2017)La relación tegumento/embrión es uno de los principales factores que afectan el porcentaje de aceite en girasol. Mayores proporciones de embrión incrementa la cantidad de aceite del grano. En la actualidad, no es claro el ... -
Reduced efficacy of ivermectin and moxidectin against Parascaris spp. in foals from Argentina
(Elsevier, 2020-02)Macrocyclic lactones are the most widely used drugs for the control of gastrointestinal nematodes of horses in Argentina. Ivermectin and moxidectin are used as broad spectrum anthelmintics and although there are several ... -
Detección de la garrapata exótica Amblyomma Varanense (acari: ixodidae) en especímenes importados de Varanus salvator (Squamata: Varanidae) en la Argentina
(Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, 2019-12)La importación de animales vivos, especialmente reptiles, ha contribuido al transporte e introducción de garrapatas exóticas en muchas regiones del mundo. Se describe el hallazgo de 11 especímenes (un macho, dos hembras y ... -
Management strategies to minimize the use of synthetic chemical acaricides in the control of the cattle tick Rhipicephalus (Boophilus) microplus (Canestrini, 1888) in an area highly favourable for its development in Argentina
(Wiley, 2020-02)The aim of this work was to test the efficacy of winter-spring control strategies against Rhipicephalus (Boophilus) microplus (Canestrini, 1888) (Ixodida: Ixodidae) in an area highly favourable for its development in ... -
Capacity of two Staphylococcus aureus strains with different adaptation genotypes to persist and induce damage in bovine mammary epithelial cells and to activate macrophages
(Elsevier, 2020-01)The aim of this study was to evaluate and compare the ability to adhere/internalize, persist, and induce damage in mammary epithelial cells (MAC-T) of two Staphylococcus aureus strains with different adaptation genotypes ... -
Species occurrence of ticks in South America, and interactions with biotic and abiotic traits
(Springer Nature, 2019-12)The datasets of records of the distribution of ticks and their hosts are invaluable tools to understand the phylogenetic patterns of evolution of ticks and the abiotic traits to which they are associated. Such datasets ... -
Productive response and reproductive performance of dairy cows subjected to different feeding systems
(Scientific Research Publishing, 2020-01)Fifty Holstein cows (2.6 ± 1.0 lactations) in early lactation (52.6 ± 16.4 days in milk) calved in autumn and producing 34.3 (±4.4) kg milk per cow∙day−1 were randomly assigned for 27 weeks to one of two treatments (feeding ... -
Análisis espacial de los accidentes laborales in itinere en veterinarios de grandes animales en la provincia de Santa Fe
(Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, 2016-12)En la práctica de grandes animales el profesional debe viajar frecuentemente para atender a sus clientes, exponiéndose a los riesgos del tránsito. Los objetivos de este trabajo fueron: a) evaluar la frecuencia de veterinarios ... -
Seroprevalencia de paratuberculosis bovina en rodeos de cría y de leche de dos departamentos de la provincia de Santa Fe (Argentina) = Prevalence of paratuberculosis in dairy and beef cattle in two departmen of Santa Fe province (Argentina)
(Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, 2019)La paratuberculosis (PTB) es una enfermedad crónica granulomatosa del tracto gastrointestinal causada por Mycobacterium avium subsp. paratuberculosis (MAP), que afecta a rumiantes domésticos y silvestres. La enfermedad ha ... -
Primer reporte de un caso de ehrlichiosis monocítica canina en la provincia de Santa Fe, Argentina
(Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, 2019)La ehrlichiosis monocitica canina (EMC) es una enfermedad causada por la bacteria Ehrlichia canis, de distribución mundial, alta mortalidad en caninos doméstico y síntomas inespecíficos, lo que ... -
The Ixodes ricinus complex (Acari: Ixodidae) in the Southern Cone of America: Ixodes pararicinus, Ixodes aragaoi, and Ixodes sp. cf. I. affinis
(Springer, 2019-11)The goal of this study was to clarify the taxonomic status of the Ixodes ricinus complex in the Southern Cone of America, by using morphological characters and molecular markers (mitochondrial 16SrDNA and cox1 genes). The ... -
Gordura protegida na dieta de vacas de alta produção a campo, em alfafa verde ou pré-secada, na fase inicial da lactação. Parâmetros plasmáticos
(Sociedade Brasileira de Zootecnia, 2003)O trabalho foi desenvolvido na Estação Experimental Agropecuária do Instituto Nacional de Tecnologia Agropecuária (EEA-INTA, Rafaela) da Argentina. Foram utilizadas 32 vacas da raça Holando-Argentina, de alta produção ... -
BLV: lessons on vaccine development
(BMC, 2019-10-07)Vaccination against retroviruses is a challenge because of their ability to stably integrate into the host genome, undergo long-term latency in a proportion of infected cells and thereby escape immune response. Since ...