Listar Artículos científicos por fecha de publicación
Mostrando ítems 101-120 de 644
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Neosporosis epidémica y endémica: descripción de dos eventos en bovinos para cría = Endemic and epidemic bovine neosporosis: description of two events in beef cattle
(Elsevier, 2014-12)El objetivo de este trabajo es describir dos eventos producidos en la provincia de Buenos Aires en los cuales Neospora caninum estuvo asociado a la ocurrencia de abortos en bovinos de cría para carne. En uno de ellos se ... -
Predicting maize phenology: intercomparison of functions for developmental response to temperature
(American Society of Agronomy, 2014-12)Accurate prediction of phenological development in maize (Zea mays L.) is fundamental to determining crop adaptation and yield potential. A number of thermal functions are used in crop models, but their relative precision ... -
Closantel plasma and milk disposition in dairy goats: assessment of drug residues in cheese and ricotta
(Wiley, 2014-12)Closantel (CLS) is currently used in programs for the strategic control of gastrointestinal nematodes. CLS is extralabel used in different dairy goat production systems. From available data in dairy cows, it can be concluded ... -
Rolling Pampas agroecosystem: which landscape attributes are relevant for determining bird distributions?
(Springer, 2014-12)Background: Agricultural intensification is among the main factors affecting biodiversity. The Rolling Pampas of Argentina have undergone through a process of landscape transformation and agricultural intensification that ... -
A Neospora caninum vaccine using recombinant proteins fails to prevent foetal infection in pregnant cattle after experimental intravenous challenge
(Elsevier, 2014-12-15)The aim of the present study was to evaluate the immunogenicity and protective efficacy of rNcSAG1, rNcHSP20 and rNcGRA7 recombinant proteins formulated with immune stimulating complexes (ISCOMs) in pregnant heifers against ... -
Estudio retrospectivo de multirresistencia antimicrobiana en aislamientos de Escherichia coli de terneros con diarrea neonatal = Retrospective study of multiple antimicrobial resistance in Escherichia coli isolates from neonatal calves with diarrhea
(2015)Escherichia coli es una de las principales etiologías de la diarrea neonatal de los terneros y el tratamiento de esta enfermedad incluye el uso de antimicrobianos. Se realizó un estudio retrospectivo durante un período de ... -
Vaccination of pigs with the S48 strain of Toxoplasma gondii – safer meat for human consumption
(2015)As clinical toxoplasmosis is not considered a problem in pigs, the main reason to implement a control strategy against Toxoplasma gondii (T. gondii) in this species is to reduce the establishment of T. gondii tissue cysts ... -
Embryo yield in llamas synchronized with two different intravaginal progesterone-releasing devices and superovulated with eCG
(2015)The objectives of this study were to compare the effects of two intravaginal devices (ID) containing the same dose (0.5 g) of progesterone (P4) on subsequent ovarian response, embryo production and circulating P4 concentration ... -
Ranges of Vigor Based on the Electrical Conductivity Test in Dehulled Sunflower Seeds
(Academic Journals, 2015)Electrical Conductivity (EC) is a promising vigor test since it produces fast laboratory results. In sunflower, the leakage of electrolytes from the pericarp may interfere with exudates from embryo tissues. The aims of ... -
Use of geophysical survey as a predictor of the edaphic properties variability in soils used for livestock production
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), España, 2015)The spatial variability in soils used for livestock production (i.e. Natraquoll and Natraqualf) at farm and paddock scale is usually very high. Understanding this spatial variation within a field is the first step for ... -
Cambios en las propiedades químicas de un suelo molisol de la región pampeana argentina con diferente historia de manejo = Changes on the chemical properties of a mollisol soil under different management systemas in the Pampean region, Argentina
(Universidad de Concepción, Chile, 2015)La intensificación del uso agrícola del suelo provoca degradación, la cual puede revertirse implementando rotaciones de cultivos, labranzas conservacionistas, forestaciones o incorporando pasturas. El objetivo de este ... -
Toxicidad subletal de clorpirifos sobre Octolasion cyaneum (Annelida: Oligochaeta, Lumbricidae)
(2015)El objetivo de este trabajo fue evaluar la supervivencia, biomasa, parámetros reproductivos y cambios morfológicos de Octolasion cyaneum (Annelida: Oligochaeta, Lumbricidae) expuesta a diferentes concentraciones ... -
Delimitación de ambientes edáficos en suelos de la pampa deprimida mediante la conductividad eléctrica aparente y la elevación
(2015)Los suelos de la Pampa Deprimida presentan una elevada heterogeneidad espacial. Por ende, una alternativa para el manejo de los mismos podría ser la incorporación de las técnicas de manejo por ambientes (MA). Por ello, ... -
Efectos de clorpirifos, cipermetrina y glifosato sobre Milax gagates (Mollusca: Pulmonata) y Armadillidium vulgare (Crustacea: Isopoda)
(2015)El objetivo fue evaluar el efecto tóxico de Clorpirifos, Cipermetrina y Glifosato sobre Milax gagates y Armadillidium vulgare. La unidad experimental fue un recipiente (36, 5 x 24,5 cm) con 10 cm de suelo, 45 g de residuo ... -
Extracting DNA of nematodes communities from Argentine Pampas agricultural soils
(2015)We examined four strategies (Tris/EDTA, sodium dodecyl sulfate, Chelex 100 resin and cetyltrimethylammonium bromide -CTAB-) for extracting nucleic acid (DNA) from communities of nematodes. Nematodes were isolated from ... -
Wheat spike fertility : inheritance and relationship with spike yield components in early generations
(2015)In wheat, grain number is considered as the product of spike dry weight (SDW) and the number of grains per unit of SDW, that is an indicator of spike fertility (SF). The aim of this study was to determine the heritability ... -
Agricultura de precisión: dosis variable de nitrógeno en cebada
(2015)La Agricultura de Precisión (AP) permite delimitar zonas de manejo (ZM) que expresan diferente potencial de rendimiento. Los objetivos de esta investigación fueron: (l) determinar la interacción entre las ZM y la fertilización ... -
Variación estacional de carbono orgánico particulado y nitrógeno anaeróbico
(2015)Las fracciones lábiles de la materia orgánica como el carbono orgánico particulado (COP) y el nitrógeno (N) liberado en incubación anaeróbica (Nan)) son indicadores de salud edáfica. Sin embargo, sus contenidos pueden ... -
First insights into de migration pattern of an upland goose (Chloephaga picta) based on satellite tracking
(Sociedad de Ornitología Neotropical, 2015)Detailed knowledge of the migratory strategies is important to understand the ecology and evolution of migration and the conservation of migratory birds The Argentinean federal government declared sheldgeese (Chloephaga ... -
Delineation of management zones to improve nitrogen management of wheat
(2015-01)Site-specific management of N (NSSM) is an attractive and intuitive approach to increasing N fertilizer use efficiency (NUE) of agricultural systems by adjusting fertilizer rates to the soil characteristics. The objective ...