Listar Artículos científicos por fecha de publicación
Mostrando ítems 81-100 de 439
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Spotted fever group rickettsiae in Amblyomma ticks likely to infest humans in rural areas from northwestern Argentina
(2015)This work was performed to detect Rickettsia species of the spotted fever group in Amblyomma ticks likely to infest humans in rural areas from northwestern Argentina. Free-living ticks were collected and determined as ... -
High pasture allowance does not improve animal performancein supplemented dairy cows grazing alfalfa during autumn–winter
(2015)The aim of this study was to assess the effect of three alfalfa pasture herbage allowances on milk yield and composition during autumn–winter grazing season on early autumn calving dairy cows. Eighteen multiparous Holstein ... -
Comparative evaluation of udder and body conformation traits of first lactation ¾ Holstein x ¼ Jersey versus Holstein cows = Comparación de las características de conformación de la ubre y el cuerpo de vacas de primera lactancia ¾ Holstein x ¼ Jersey versus Holstein
(Facultad de Ciencias Veterinarias, Universidad Austral de Chile, 2015)To facilitate the process of decision-making in selecting specific breeds for crossbreeding, this study aimed to determine the conformation traits of ¾ Holstein (HO) x ¼ Jersey (JE) crossbreds, relative to their pure HO ... -
Effect of ensiling a total mixed ration on feed quality for cattle in smallholder dairy farms = Efecto de ensilar una ración totalmente mezclada sobre la calidad nutritional para el ganado en pequeñas explotaciones lecheras
(Facultad de Ciencias Veterinarias, Universidad Austral de Chile, 2015)The aim of this study was to assess the impact of ensiling a total mixed ration (TMR) on chemical composition, fermentation and sensory characteristics. Whole-plant corn (WPC) was ensiled alone, as a control, or in combination ... -
Faecal culturable microbiota, growth and clinical parameters of calves supplemented with lactic acid bacteria and lactose prior and during experimental infection with Salmonella Dublin DSPV 595T = Microbiota cultivable fecal, crecimiento y parámetros clínicos de terneros suplementados con bacterias ácido lácticas y lactosa previo y durante una infección experimental con Salmonella Dublin DSPV 595T
(Facultad de Ciencias Veterinarias, Universidad Austral de Chile, 2015)The aim of this study was to evaluate the probiotic inoculum + lactose effect on weight, intestinal culturable microbiota, morbidity and mortality of young calves challenged with Salmonella Dublin DSPV 595T. Twenty eight ... -
Preparation and characterization of a Staphylococcus aureus capsular polysaccharide-protein conjugate prepared by a low cost technique: a proof-of-concept study
(2015-01)Staphylococcus aureus is a worldwide distributed pathogen that produces several diseases in many species and is the major cause of mastitis in dairy cows. S. aureus capsular polysaccharide 5 (CP5) has been widely proposed ... -
The taxonomic status of Rhipicephalus sanguineus (Latreille, 1806)
(2015-02)The brown dog tick, Rhipicephalus sanguineus sensu stricto, is a species with considerable public health and economic importance. However, the taxonomic status of this species is far from resolved. After more than 110 years ... -
Strategic applications of long-acting acaricides against Rhipicephalus (Boophilus) microplus in northwestern Argentina, with an analysis of tick distribution among cattle
(2015-03)Strategic applications of long-acting acaricides for the control of Rhipicephalus (Boophilus) microplus in northwestern Argentina were evaluated for one year. In addition, tick distribution among cattle was analyzed to ... -
Rickettsia infection in Amblyomma tonelliae, a tick species from the Amblyomma cajennense complex
(2015-03)The present study was performed to evaluate the Rickettsia infection in Amblyomma tonelliae ticks from Argentina. All ticks were subjected to DNA extraction and tested by a battery of PCRs to amplify fragments of four ... -
Resistencia a los antihelmínticos en nematodos que parasitan a los rumiantes en la Argentina
(Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2015-04)La Resistencia Antihelmíntica (RA) en los nematodos de los rumiantes es un serio problema sanitario-productivo en toda el área centro norte de la Argentina. El uso de los antihelmínticos ha permitido un incremento significativo ... -
Monepatel y control de Haemonchus contortus en ovinos. Evaluación de la eficacia luego de cuatro años de uso en condiciones de refugio reducido
(2015-04)La resistencia de los nematodes ovinos a los antihelmínticos está generalizada en el centro-norte de la Argentina y la mayor preocupación actual es el aumento y dispersión de Haemonchus contortus portando alelos con ... -
Two new species of Ornithodoros (Ixodida; Argasidae) from the Southern Cone of South America
(2015-05)Two new species of the genus Ornithodoros were described from larvae collected in Argentina and Chile. Ornithodoros xerophylus n. sp. was described from specimens collected on the small rodent Graomys centralis in Argentina. ... -
Genome-wide association study for somatic cell score in Argentinean dairy cattle
(2015-05)This study aimed to understand the genomic architecture of Argentinean dairy herds by measuring linkage disequilibrium (LD) and identifying loci associated with parameters calculated from somatic cell count (SCC). Phenotypic ... -
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 ... -
Primer asociación parásito hospedador de Amblyomma argentinae Neumann, 1904 (Acari: Ixodidae) con tres especies de saurios del Chaco Semiárido de Argentina = First parasite host association of Amblyomma argentinae Neumann, 1904 (Acari: Ixodidae) with three species of lizards from Semi-arid Chaco of Argentina
(2015-06)El conocimiento sobre las garrapatas parásitas de reptiles en Argentina es incompleto. En este sentido, el objetivo de este trabajo fue determinar las especies de garrapatas que parasitan lagartos en una localidad del Chaco ... -
Intramammary infusion of Panax ginseng extract in bovine mammary gland at cessation of milking induces changes in the expression of toll-like receptors, MyD88 and NF-kB during early involution
(2015-06)The purposes of this study were to explore TLR2 and TLR4 participation and MyD88 and NF-κB activation in bovine mammary glands (BMG) treated with Panax ginseng (PG) at involution and verify the effect of PG in the cytokine ... -
Which are important targets in development of S. aureus mastitis vaccine?
(2015-06)Staphylococcus aureus represents one of the leading causes of mastitis in dairy cows worldwide. S. aureus IMI have variable outcomes due to virulence of the strain involved, immune defenses of the host, and by antibiotic ... -
A long-term sustainability assessment of an Argentinian agricultural system based on emergy synthesis
(2015-06-24)By tracking the different flows of emergy (the total amount of solar energy that was directly or indirectly required in a production process) it is possible to account for all environmental work previously involved in ... -
Factors affecting patterns of Amblyomma triste (Acari: Ixodidae) parasitism in a rodent host
(2015-07-30)Here we offer a multivariable analysis that explores associations of different factors (i.e., environmental, host parameters, presence of other ectoparasites) with the interaction of Amblyomma triste immature stages and ... -
Manejo sustentable de sistemas agrícolas en la región central de Córdoba: una experiencia de largo plazo en INTA EEA Manfredi
(Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2015-08)La principal limitante ambiental para la agricultura de secano en la región central de Córdoba es la disponibilidad hídrica, por lo que toda práctica de manejo que favorezca la captación, almacenamiento y conservación del ...