Browsing by Title Artículos de revistas
Now showing items 561-580 of 668
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Salmonella enterica: a review or the trilogy agent, host and environment and its importance in Chile. Salmonella enterica: Una revisión de la trilogía agente, hospedero y ambiente, y su trascendencia en Chile
(Sociedad Chilena de Infectologia, 2016)All rights reserved. Salmonella enterica is a major foodborne pathogen worldwide, being the main cause of outbreaks by food consumption in Chile. Despite all efforts deployed for control and prevention, the high incidence ... -
Saproxylic Beetle Assemblage Selection as Determining Factor of Species Distributional Patterns: Implications for Conservation
(Oxford Univ Press, 2016)The knowledge of the distributional patterns of saproxylic beetles is essential for conservation biology due to the relevance of this fauna in the maintenance of ecological processes and the endangerment of species. The ... -
Screening for antibodies against infectious bronchitis virus: Specificity of the Haemagglutination Inhibition Test
(1990)A screening of antibodies against strain M‐41 and the Dutch variant strains D‐274 and D‐1466 of infectious bronchitis virus (IBV) using the haemagglutination inhibition test (HI) was carried out in Chile. The presence of ... -
Seasonal, spatial and diel partitioning of Acyrthosiphon pisum (Hemiptera: Aphididae) predators and predation in alfalfa fields
(Elsevier, 2014)Predators are important natural enemies, often responsible for preventing pest population outbreaks of in many crops. Complementarity in resource use involves spatial or temporal segregation of predators, which can result ... -
Secreción biliar en el cabrito lactante anestesiado. Efectos de la administración exógena de secretina y colecistoquinina-pancreozimina
(Universidad de Chile, 1988)El objetivo del presente trabajo es estudiar el efecto de la administracion exogena de secretina y CCK-PZ sobre el flujo y composicion de la bilis en el cabrito lactante anestesiado. Se utilizaron 20 cabritos lactantes de ... -
Secretion pattern, ultrastructural localization and function of extracellular matrix molecules involved in eggshell formation
(2001)The chicken eggshell is a composite bioceramic containing organic and inorganic phases. The organic phase contains, among other constituents, type X collagen and proteoglycans (mammillan, a keratan sulfate proteoglycan, ... -
Selection of frozen bull spermatozoa for in vitro fertilization Selección de espermatozoides de toro para fecundación in vitro
(1996)The swim-up and Percoll gradient techniques were evaluated for the selection of frozen bovine spermatozoa to be used on an in vitro fertilization system. The parameters assayed were: concentration, morphology, motility and ... -
Selective crystallization of calcium salts by poly (acrylate)-grafted chitosan
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2005-06-01)The biopolymer chitosan was chemically modified by grafting polyacrylamide or polyacrylic acid in a homogeneous aqueous phase using potassium persulfate (KPS) as redox initiator system in the presence of N,N-methylene-bi ... -
Self-organization in the dynamics of huddling behavior in Octodon degus in two contrasting seasons
(Springer, 2015)In small mammals, huddling appears as an efficient response to low temperature with important consequences in energy saving, which in turn affect individual fitness. It has been proposed that this behavior is a self-organized ... -
Serologic evidence of pneumovirus in Chile
(American Association of Avian Pathologists, 1998)Chicken and turkey serum samples were obtained and tested in an enzyme-linked immunosorbent assay to establish the presence or absence of antibodies to avian pneumovirus in the commercial poultry population of Chile. A ... -
Seroprevalence and risk factors for Neospora caninum in small dairy farms in central Chile
(Universidad de Córdoba, Colombia, 2017)Objective. To provide information about seroprevalence and risk factors of Neospora caninum infection in bovines of central Chile. Material and Methods. The study population are small dairy farms that are part of a Government ... -
Seroprevalence of Leptospira spp. in Working Horses Located in the Central Region of Chile
(Elsevier, 2016)Urban working horses live in close contact with their owners. They are usually kept in periurban areas of big cities and cohabit with other animals under precarious sanitary conditions, whereas army horses are kept under ... -
Seroprevalence of Nine Leptospira Interrogans Serovars in Wild Carnivores, Ungulates, and Primates From a Zoo Population in a Metropolitan Region Of Chile
(Amer. Assoc. Zoo Veterinarian, 2015)Serum samples from 130 individuals representing 42 species of carnivores, ungulates, and primates from a population of captive mammals in Metropolitan Region in Chile were tested for antibodies against nine serovars of ... -
Seroprevalence of Toxoplasma gondii infection in sheep and alpacas (Llama pacos) in Chile
(1999)Serum samples from 408 sheep from different regions of Chile and 447 alpacas (Llama pacos) from the north of the country were tested for Toxoplasma gondii antibodies. The indirect haemagglutination test (IHAT) was used in ... -
Serum alkaline phosphatase isoenzymes in thoroughbred foals determined by agarose gel electrophoresis and neuraminidase. Isoenzimas de fosfatasa alcalina en el suera de potrillos Fina Sangre de Carrera inglés obtenidas por electroforesis en gel de agarosa
(1996)In order to obtain new information on serum alkaline phosphatase isoenzymes, sera from 7, 13 and 20 month-old foals were pro-treated with neuraminidase (sialidase of Vibrio choterae) and electrophoresed using a commercial ... -
Serum antibodies to Trypanosoma cruzi antigens in Atacameños patients from highland of northern Chile
(Elsevier, 1996)In the present work we have investigated the serum antibody spectrum to parasite antigens involved in human T. cruzi infection. Analysis was performed by conventional serology (IHA, IFAT and ELISA), complement-mediated ... -
Serum chemistry and antibody status to some avian pathogens of free-living and captive condors (Vultur gryphus) of central Chile
(Taylor and Francis Ltd., 1997)This study provides information on serology and serum chemistry of the Andean condor (Vultur gryphus). Twenty condors living under natural conditions were captured, blood sampled, measured, and released. In addition, 12 ... -
Short communication: Characterization of Salmonella phages from dairy calves on farms with history of diarrhea
(Elsevier, 2017)Salmonella enterica can cause disease and mortality in calves. This pathogen is also a zoonosis that can be transmitted by animal contact or by food. The prevalence of Salmonella in dairy farms has been reported to range ...
