Listar Artículos científicos por fecha de publicación
Mostrando ítems 41-60 de 439
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Estudio prospectivo de las primo infecciones por Babesia bovis en terneros Brahman y Brangus de un área enzoótica de Corrientes, Argentina
(2014)Se evaluaron primo-infecciones causadas por Babesia bovis en terneros Brahman y Brangus en zona endémica de Corrientes, mediante la detección de: anticuerpos por ELISA-i, hematocrito y parasitemia en 48 vacas ... -
The association between mastitis and reproductive performance in seasonally-calved dairy cows managed on a pasture-based system = Asociación entre la mastitis y el desempeño reproductivo en rodeos lecheros Holstein de base pastoril y servicios estacionados
(2014)The objective of this study was to assess association between clinical, subclinical mastitis, body condition score and the reproductive performance of cows under seasonally calving conditions in a pasture-based management ... -
Accidents in farming in Santa Fe province, Argentina
(Universidad de Buenos Aires, 2014)Background: frequency of occupational accidents tends to be high in rural areas. Objectives: to characterize accidents and injuries, risk perception and adoption of protective elements on livestock workers in Sarmiento, ... -
Prevalencia de bacterias patógenas de mastitis bovina en leche de tanque de frío y evaluación de medios de cultivos para el recuento y la identificación de Staphylococcus aureus
(2014)El objetivo del presente estudio fue estimar la prevalencia de bacterias patógenas de mastitis en muestras de leche de tanque en tambos ubicados en la cuenca lechera central Argentina. Además, se evaluó el desempeño de ... -
Metabolic level recognition of progesterone in dairy Holstein cows using probabilistic models
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2014)Administration of exogenous progesterone is widely used in hormonal protocols for estrous (re)synchronization of dairy cattle without regarding pharmacological issues for dose calculation. This happens because it is difficult ... -
Estimation of body weight by an indirect measurement method in developing replacement Holstein heifers raised on pasture = Estimación del peso corporal mediante un método indirecto en vaquillonas Holstein de reposición criadas sobre pasturas
(Facultad de Ciencias Veterinarias, Universidad Austral de Chile, 2014)Scale is the most accurate means of measuring the actual body weight (BW) in developing heifers. However, when it is not available, indirect tools to estimate BW are needed. The objective of this study was to evaluate the ... -
Miel de abeja producida en un sistema lechero en base a pastura de alfalfa (composición fisicoquímica, palinológica y sensorial)
(2014)El objetivo de este estudio fue caracterizar mieles producidas en apiarios localizados en el centro de la provincia de Santa Fe, Argentina. Durante cinco campañas se analizaron fisicoquímica, palinológica y sensorialmente ... -
Natural occurrence of entomophthoroid fungi (Entomophthoromycota) of aphids (Hemiptera: Aphididae) on cereal crops in Argentina
(2014-01)The spectrum of entomophthoroid fungal species parasitising aphids on cereal crops and a study of the phenology and prevalence of these pathogens were investigated in Argentina. The studies were conducted at six different ... -
Amblyomma parvitarsum (Acari: Ixodidae): localities, hosts and host-parasite ecology
(2014-01)Only a few aspects of the biology of Amblyomma parvitarsum Neumann are known. Adults of this hard tick species are parasites of South American camelids in the Andean plateau of Argentina, Bolivia, Peru and Chile and also ... -
Staphylococcus aureus chronic intramammary infection modifies protein expression of transforming growth factor beta (TGF-β) subfamily components during active involution
(2014-02)The objectives of this study were to determine whether Staphylococcus aureus chronic intramammary infection (IMI) influences protein expression of TGF-β subfamily components and collagen I and to examine the histomorphometric ... -
Immune response of heifers against a Staphylococcus aureus CP5 whole cell and lysate vaccine formulated with ISCOM Matrix adjuvant
(2014-02)Staphylococcus aureus is the most frequently isolated pathogen from bovine intramammary infections worldwide. Commercially available vaccines for mastitis control are composed either of S. aureus lysates or whole-cells ... -
Natural occurrence of entomophthoroid fungi of aphid pests on Medicago sativa L. in Argentina = Ocurrencia natural de hongos entomophthorales de áfidos plaga de Medicago sativa L. en Argentina
(2014-03)Four species of entomophthoroid fungi, Pandora neoaphidis (Entomophthorales: Entomophthoraceae), Zoophthora radicans (Entomophthorales: Entomophthoraceae), Entomophthora planchoniana (Entomophthorales: Entomophthoraceae) ... -
The ticks (Acari: Ixodida: Argasidae, Ixodidae) of Bolivia
(2014-03)The tick species reported in Bolivia are reviewed here as (1) endemic or established: Ornithodoros echimys, O. guaporensis, O. hasei, O. kohlsi, O. mimon, O. peropteryx, O. rostratus, Otobius megnini, Amblyomma auricularium, ... -
Reassessment of the taxonomic status of Amblyomma cajennense (Fabricius, 1787) with the description of three new species, Amblyomma tonelliae n. sp., Amblyomma interandinum n. sp. and Amblyomma patinoi n. sp., and reinstatement of Amblyomma mixtum Koch, 1844, and Amblyomma sculptum Berlese, 1888 (Ixodida: Ixodidae)
(2014-04)A reassessment of the taxonomic status of Amblyomma cajennense based on the morphological analyses of ticks from the whole distribution area of the species resulted in the redescription of A. cajennense, the validation of ... -
Biochemical characterization of thioredoxin reductase from Babesia bovis
(2014-04)This paper addresses the identification, cloning, expression, purification and functional characterization of thioredoxin reductase from Babesia bovis, the etiological agent of babesiosis. The work deals with in vitro ... -
The allocation of assimilated carbon to shoot growth: in situ assessment in natural grasslands reveals nitrogen effects and interspecific differences
(2014-04)In grasslands, sustained nitrogen loading would increase the proportion of assimilated carbon allocated to shoot growth (A shoot), because it would decrease allocation to roots and also encourage the contribution of species ... -
Study of the life cycle of Amblyomma dubitatum (Acari: Ixodidae) based on field and laboratory data
(2014-05)The life cycle of Amblyomma dubitatum was described based on the seasonal distribution of all parasitic stages and the development periods of engorged ticks under different conditions of photoperiod and temperature. All ... -
Natural infestation of Hydrochoerus hydrochaeris by Amblyomma dubitatum ticks
(2014-06)Natural infestation of Amblyomma dubitatum in relation to individual specific attributes of Hydrochoerus hydrochaeris such as sex, body mass and body condition was analyzed. The anatomical distribution of A. dubitatum on ... -
Typification of virulent and low virulence Babesia bigemina clones by 18S rRNA and rap-1c
(2014-06)The population structure of original Babesia bigemina isolates and reference strains with a defined phenotypic profile was assessed using 18S rRNA and rap-1c genes. Two reference strains, BbiS2P-c (virulent) and BbiS1A-c ... -
Comparative proteomics for the characterization of the most relevant Amblyomma tick species as vectors of zoonotic pathogens worldwide
(2014-06-13)Ticks transmit zoonotic pathogens worldwide. Nevertheless, very little information is available on their genome, transcriptome and proteome. Herein, we characterized the proteome of Amblyomma americanum adults and nymphs ...