Artículos científicos: Envíos recientes
Mostrando ítems 161-180 de 445
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Impacto de factores de manejo sobre la concepción en vaquillonas lecheras
(Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba, 2020)El incremento del número de vaquillonas preñadas por unidad de tiempo mejora la eficiencia reproductiva en rodeos lecheros. El objetivo de este trabajo fue analizar el efecto de factores de manejo sobre la concepción. Se ... -
The Known Distribution and Ecological Preferences of the Tick Subgenus Boophilus (Acari: Ixodidae) in Africa and Latin America
(Springer, 2006-02)A compilation of the known distribution of Boophilus ticks in Africa and Latin America is presented, together with details on climate preferences. B. annulatus is recorded mainly in the western part of a strip from the ... -
Resistance of the cattle tick Rhipicephalus (Boophilus) microplus to ivermectin in Argentina
(Elsevier, 2020)Resistance to ivermectin in populations of the cattle tick Rhipicephalus microplus in Argentina was diagnosed in this work. The in vitro larval immersion test (LIT) was used to determine quantitatively the levels of ... -
Especies de garrapatas duras en un área urbana protegida de la Ciudad Autónoma de Buenos Aires = Hard Tick Species in a Protected Urban Area of Buenos Aires City
(Ministerio de Salud de la Nación, Argentina, 2017-09)INTRODUCCIÓN: Las garrapatas (Acari, Ixodida) son artrópodos vectores de gran diversidad de patógenos virales, bacterianos y protozoarios, muchos de los cuales son zoonóticos y emergentes. En Argentina se encuentran numerosas ... -
Validation and field evaluation of a competitive inhibition ELISA based on the recombinant protein tSAG1 to detect anti-Neospora caninum antibodies in sheep and goats
(Elsevier, 2020-08)Neospora caninum is a protozoan parasite that causes abortion and reproductive failure in small ruminants. We validated and evaluated under field conditions a competitive inhibition ELISA based on the truncated SAG1 protein ... -
Efecto de la suplementación con ciclodextrinas cargadas con colesterol al semen sexado bovino post-descongelación para su uso en producción in vitro de embriones
(UCOPress. Cordoba University Press, 2018)Los espermatozoides bovinos presentan una bajo relación de colesterol/fosfolípidos en la membrana plasmática. Esta característica es importante ya que el colesterol juega un papel fundamental en el mantenimiento de la ... -
Meta-analysis of risk factors for canine leptospirosis
(Elsevier, 2020-08)Leptospirosis is one of the most widespread zoonotic diseases, with more than one million human cases reported worldwide every year. Dogs could develop infections that range from asymptomatic to severe, and shed leptospires ... -
Performance of Lactobacillus paracasei 90 as an adjunct culture in soft cheese under cold chain interruption
(Elsevier, 2020-06)In this work, we simulated cold chain interruptions in soft cheeses of high-moisture to assess their impact on ripening, putting attention on the behaviour of an adjunct culture of Lactobacillus paracasei 90 (L90) when it ... -
Technological variables influencing the growth and stability of a silage inoculant based on spray‐dried lactic acid bacteria
(Wiley, 2020-06)Aims: To investigate the influence of different culture media and fermentation conditions on growth performance and viability of three lactic acid bacteria (LAB) strains with potential as silage inoculants, and to optimize ... -
Eliminación de huevos de los pequeños estróngilos en la materia fecal de los equinos y su importancia práctica en la posibilidad de tratamientos selectivos
(Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, 2020-06)Los pequeños estróngilos son los parásitos de mayor prevalencia e importancia en los equinos de todo el mundo, y el desarrollo generalizado de la resistencia de estos nematodos a los antihelmínticos está impulsando la ... -
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 ...