Temas
Mostrando ítems 61-80 de 205
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Efectos ambientales en la producción de una majada Merino de la Patagonia Argentina
(Asociación Argentina de Producción Animal, 2016-06)A los fines de determinar la variabilidad interanual de caracteres de producción de ovinos como así también algunos efectos no-genéticos que los afectan se analizaron datos obtenidos de un total de 9859 corderos/as, 9360 ... -
Effect of GnRH or hCG administration on Day 4 post insemination on reproductive performance in Merino sheep of North Patagonia
(Elsevier, 2018-12)Different therapeutic strategies have been used with the objective of improve luteal function to reduce embryonic losses. The objective of this work was to study the effect of the administration of GnRH or hCG at Day 4 ... -
Effect of plant nutritional traits on the diet of grasshoppers in a wetland of Northern Patagonia
(Taylor & Francis, 2020-05)Dichroplus maculipennis is one of the most damaging grasshoppers of wetlands. We investigated their feeding behavior in relation to the most abundant plants of Patagonian wetlands. Results showed that D. maculipennis was ... -
Effect of population density on diet composition and dietary niche breadth of guanaco (Lama guanicoe, Müller 1776) in northeastern Patagonian steppes
(Elsevier, 2019-11)The optimal foraging theory postulates that as animal population density increases, the progressive decline in preferred forage availability results in changes in diet composition and widening of dietary niche breadth. For ... -
The effect of silvicultural management on the genetic diversity of a mixed Nothofagus forest in Lanín Natural Reserve, Argentina
(2016-03)El conocimiento del impacto de las prácticas de manejo forestal es crucial para permitir el uso de los recursos naturales garantizando al mismo tiempo la sostenibilidad de la variación genética, que es esencial para la ... -
Effect of stand density and pruning on growth of ponderosa pines in NW Patagonia, Argentina
(2010-03)Due to the lack of knowledge about ponderosa pine performance under silvopastoral systems (SPS) conditions, the objective of this study was to determine the effect of stand density and pruning on the growth magnitude of ... -
Effect of volcanic ash over Orthoptera survival in Patagonia
(2015-04)The aim of this work was to evaluate the ash toxicity from the Puyehue-Cordón Caulle volcanic complex on the survival of two Orthopteran species: the grasshoper Dichroplus vittigerum and the green locust Brugilis sp. Two ... -
Effects of climate on the radial growth of mixed stands of Nothofagus nervosa and Nothofagus obliqua along a precipitation gradient in Patagonia, Argentina
(Elsevier, 2022-08)Climate models for North Patagonia in Argentina project dryer conditions, due to a decrease in mean precipitation combined with an increase in mean temperatures. The temperate mixed Nothofagus forest, which exists along a ... -
Efficient sampling of ground-dwelling arthropods using pitfall traps in arid steppes
(Sociedade Entomológica do Brasil, 2010-12)Pitfall trapping is probably the most frequently used method for sampling grounddwelling arthropods. While the capture of specimens in pitfall traps largely depends on the number of individuals in the sampled area, trap ... -
Encuesta serológica sobre Brucelosis bovina en ganado de la provincia de Río Negro, Argentina, en el área de vacunación antiaftosa
(Biogenesis Bagó, 2005)Se realizó un estudio de prevalencia de Brucelosis bovina en los departamentos del Noreste de la provincia de Río Negro. Se procesaron 1774 muestras de suero pertenecientes a 182 establecimientos. La serología diagnóstica ... -
Environmental influence on Merino sheep wool quality through the lens of seasonal variations in fibre diameter
(Elsevier, 2020-10)Wool production in arid and semiarid rangelands is strongly affected by environmental variability. Seasonal fluctuations of the environmental conditions drive variations in the nutritional status of the sheep, wool growth ... -
Esquila preparto, una tecnología de adopción masiva y alto impacto en la producción ovina de la Patagonia
(Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2015-12-16)La esquila de lanares poco antes de la parición tiene ventajas y desventajas que dependen del ambiente y del sistema de producción. Investigaciones realizadas por el INTA en Patagonia demostraron que la esquila preparto ... -
Evaluación de daños por heladas tardías en ensayos de procedencias de pino oregón introducidos en el norte de la Región Andino Patagónica Argentina
(Universidad Austral de Chile, 2005-12)The susceptibility to late frost of the seed source used for afforestations at the moment it is one of the main adaptatives characteristic limiting the increase of the planted area of Douglas-fir (Pseudotsuga menziesii ... -
Evaluación de pastizales patagónicos con imágenes de satélites y de vehículos aéreos no tripulados
(Asociación Argentina de Ecología, 2019-12)La evaluación de pastizales en regiones áridas y semiáridas es una herramienta clave tanto para planificar el manejo ganadero como para realizar diagnósticos ambientales. Si bien hay un consenso sobre la utilidad de dicha ... -
Evaluating the performance of multiple remote sensing indices to predict the spatial variability of ecosystem structure and functioning in Patagonian steppes
(2013-11)Assessing the spatial variability of ecosystem structure and functioning is an important step towards developing monitoring systems to detect changes in ecosystem attributes that could be linked to desertification processes ... -
Evaluation of plantation and early development of five alternatives to ponderosa pine in silvopastoral systems in northwest Patagonia, Argentina
(2016)En la región patagónica de Argentina, silvopastoril, los sistemas se basan en las plantaciones de coníferas exóticas en pastizales naturales del ecotono estepa-bosque Pino ponderosa es la especie más ampliamente utilizados ... -
Evaluation of three different antigens in an indirect enzyme-linked immunoassay for the detection of antibodies against Brucella abortus SRB51 in vaccinated heifers
(Elsevier, 2009)The live attenuated Brucella abortus SRB51 (SRB51) is a partial O-chain-deprived mutant. The relative lack of the polysaccharide prevents it from inducing antibodies detectable by most of the serological tests used for the ... -
Evidence on the response of Patagonian forage grasses to the mulching effect of recent tephra deposits in Argentina
(Taylor & Francis, 2017-08-31)In Patagonia, arid and semiarid lands are being affected both by inappropriate management practices, which are leading to degradation, and by volcanic activity, whose effects are still unclear. This study aimed to test ... -
Exploring drivers and levels of technology adoption for ecological intensification of pastoral systems in north Patagonia drylands
(Elsevier, 2022-02)Although pastoral systems make a significant contribution to food security, they are also pointed out as being responsible for substantial environmental impact. Ecological intensification through process- rather than ... -
Factors affecting success of galls of Aditrochus coihuensis (Hymenoptera: Pteromalidae) = Factores que afectan el éxito de las agallas de Aditrochus coihuensis (Hymenoptera: Pteromalidae)
(Sociedad Entomológica Argentina, 2011-12)Galls of Aditrochus coihuensis (Hymenoptera: Pteromalidae) were collected from their host tree, the southern beech Nothofagus dombeyi, near San Carlos de Bariloche, Argentina, during the spring of 2007. Galls were carefully ...