Repositorio de revistas UTELVT (Universidad Técnica de Esmeraldas Luis Vargas Torres)
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Ensilaje de king grass con diferentes concentraciones de urea para la alimentación
Get PDFUna de las alternativas para la alimentación del ganado bovino en época seca es el ensilaje. Para este propósito, la utilización de pasto y urea constituye una excelente elección. Este trabajo tiene como objetivo valorar el efecto del ensilaje del pasto King Grass (Pennisetum purpureum x Pennisetum thypoides) con dos concentraciones de urea (1 y 1.5%), en la alimentación de toretes y vaconas. Se trabajó con 6 toretes Brahman y 6 vaconas mestizas Holstein-Brahman. La alimentación fundamental (controles) se realizó con pasto fresco más urea durante 90 días, durante los cuales se les proporcionó el alimento diariamente, además de agua ad libitum. Los parámetros que se evaluaron fueron: el incremento de peso, consumo de alimento y altura a la cruz. La investigación revela que el uso de ensilajes ofrece la oportunidad de almacenar forrajes durante periodos de alta productividad, para utilizarlos en épocas críticas, contribuyendo así a un adecuado manejo de la alimentación del ganado
Saberes y sabores: Caracterización de la gastronomía tradicional en comunidades afroecuatorianas del norte de Esmeraldas
Get PDFLa provincia de Esmeraldas se destaca por ser única en su gastronomía gracias a la variedad de platos que posee y que con el pasar de los años han ido manteniéndose de generación en generación, en esta investigación se realizó un análisis de la transculturización gastronómica para el rescate del patrimonio culinario ancestral en comunidades afroecuatorianas. Para la recopilación de datos nuevos de fuentes primarias se aplicaron encuestas y entrevistas a las amas de casa y a quienes trabajan en la preparación y comercialización de comida autóctona como portadores de los saberes ancestrales y así conocer las cualidades y atributos de la población objeto de estudio, también se realizó una revisión bibliográfica en temas relacionados a la gastronomía de Esmeraldas, acercamiento a las raíces ancestrales, el patrimonio gastronómico esmeraldeño y sus componentes, se pudo evidenciar que aún se realizan estas recetas a pesar de que existe una variada y extensa gastronomía en el menú del pueblo afroesmeraldeño, concluyendo que se debe dar mayor divulgación a través de recetarios y diversas estrategias como spot publicitarios para que prevalezcan con el pasar del tiempo, teniendo en cuenta que las comidas autóctonas son consideradas parte del patrimonio gastronómico de los pueblos
Plantas y microorganismos rizosféricos: Una vía sostenible para generar crecimiento vegetal
Get PDFEn la rizósfera ocurren varias relaciones entre las raíces de las plantas y microorganismos que en su mayoría son beneficiosas. Varias investigaciones exploran las ventajas de una mejoría en lanutrición mineral de las especies vegetales que se deriva de varios aspectos como la fijación biológica de nitrógeno atmosférico, la solubilización de fosfatos y una estructura radicular aumentada por la producción de hormonas de crecimiento vegetal. El presente trabajo tiene como objetivo estudiar las relaciones entre plantas y microorganismos rizosféricos, particularmente los mecanismos que generan una promoción sostenible del crecimiento vegetal. La metodología refiere a una investigación descriptiva-documental, se recopilaron los datos más relevantes publicados en los últimos diez años sobre las actividades en la rizósfera y los organismos directamente involucrados. Los hallazgos de esta investigación muestran que existen microorganismos rizosféricos en una amplia gama de especies vegetales. A lo largo de años de evolución, plantas y microorganismos han desarrollado una vía de reconocimiento. La relación que los involucra genera un nicho y alimento para los microorganismos, y para las plantas un aumento en los nutrientes disponibles, producción exógena de hormonas, una barrera adicional en la defensa contra patógenos y factores abióticos adversos
Desarrollo de competencia investigativa en la formación profesional para la educación inicial
Get PDFEl artículo se enmarca en un estudio sobre el desarrollo de competencia investigativa en la formación del docente en la educación superior en Ecuador. El propósito de esta investigación es describir el desarrollo de la competencia investigativa en la formación profesional para la educación inicial. Se trata de un trabajo cualitativo, que parte de una revisión documental de tipo hermenéutica, se concluye que la educación inicial es un proceso de desarrollo continuo de competencias donde el niño lleva su propio ritmo de aprendizaj
Phosphorus availability and solar radiation efficiency in carrot (Daucus carota L.) cultivation in volcanic soils.
Get PDFThe adoption of more efficient management practices, such asrecognizing the adequate level of P availability (Olsen) in the soil, canresult in improved production efficiency in the carrot (Daucus carota L.)cropping system. Complementarily, knowing the behavior of radiationuse efficiency (EUR) is relevant in the optimization of resources (Pfertilizer and radiation), due to the continuous concern forenvironmental impact and for the reduction of production costs. Theobjective of this work was to evaluate the EUR performance of twocommercial carrot cultivars, across five levels of P-Olsen availability,under field conditions (13, 16, 19, 24, 28 ppm). The experiment wasestablished at the Santa Rosa Experimental Station (39º47\u27S; 73º14\u27W),belonging to the Universidad Austral de Chile (UACh) located in the cityof Valdivia in the Los Ríos Region, during the 2010-2011 growing season.EUR (g DM MJ-1) was calculated using photosynthetically active radiation(RIFA) and biomass (aerial and total). In this study, EUR of D. carotacultivars was not influenced by soil P-Olsen availability (p>0.05), butdifferences (p<0.01) were found in photosynthetically active radiationintercepted (RIFA) and specific leaf area
Noni (Morinda citrofolia L.) foliage as a phytobiotic in broiler chicken feed.
Get PDFPoultry farming is part of the productive chain of corn, soybeansand balanced, which is one of the most important within theEcuadorian agricultural sector. Ecuadorian poultry farming hasincreased its production in recent years, unlike other types ofmeat production. The objective of the present investigationwas to determine the effect of the addition of noni (Morindacitrofolia L.) foliage levels on the productive performance ofBroiler chickens. The work was carried out in the "Cañales"Campus of the Mocache Canton, Los Ríos province. 160 BroilerCobb 500 chickens were used, distributed in a completelyrandomized design with 4 treatments, 5 repetitions each, with8 animals as the experimental unit. The evaluated treatmentsare T1 (Control; Commercial Balanced); T2, T3 and T4 (0.5, 1 and1.5% respectively of Noni foliage flour). No statisticaldifferences were found in relation to the productiveparameters between the means of Tukey treatments (P≤0.05),however in the cost-benefit relation, 0.5% of Noni foliagepresented the best value ( 1.12; a profitability of11.71% and a mortality of 5%
Analysis of the Impact of Covid-19 on the Municipal Markets of Lima Cercado 2020
Get PDFThe activities of the markets were affected by the pandemic; the research "Analysis of the impact of Covid-19 in the municipal markets of Lima Cercado, 2020" had as objective, to explain theimpact of Covid-19 in the municipal markets; where the study was focused and applied the actions and sanitary measures that were decreed and implemented by the national government before the state of national sanitary emergency; promoting its compliance by the traders and the population in general. The methodology was a basic type of study, with a qualitative approach; the research design was the case study; the traders of the Ramón Castilla municipal market, officials, professionals, technicians of the Municipality of Lima and the user public participated in the interview; for the analysis, data triangulation was used. The results showed that the emergency sanitary actions and measures were effective, despite the fact that small groups showed reluctance and resistance to this change. He concluded that the sanitary actions and measures partially helped to contain the spread of Covid-19; the most outstanding aspect was the coordination between the merchants and the municipal administration, allowing tolerance and teamwork with responsible and positive attitudes
Effects of the application of pregerminative stimulants and different types of substrates, in the germination of Gmelina arborea Robx seeds, in the nursery stage
Get PDFThe objective of this research project was to analyze the effects of theapplication of pregerminative stimulants and different types ofsubstrates in the germination of Gmelina arborea, in the nursery stage.For the application of the project, 3.5 pounds of melina seeds werepurchased to which the respective pregerminative treatment wasapplied, prior to the sowing of the same ones, establishing a total of1,440 seeds in 36 tubes of 40 seeds per tube. With three repetitions,three pregerminative treatments were used (nitric acid and distilledwater, hot water and cold water) on G. arborea Robx seeds, with threecombined substrates (orchard soil + sand, common soil + UTEQ fertilizer,common soil + rice husk), plus the control to which no treatment wasapplied, since it served as a control, but it was sown on combinedsubstrates. After two weeks of germination data collection, the growthvariables were measured during 8 weeks of height, number of leaves,stem diameter, length and width of the leaf and length of the root, thelatter only once. The work was carried out in the experimental farm "LaRepresa" owned by the State Technical University of Quevedo. Thepregerminative treatments applied to Gmelina arborea Robx seeds,varied in differences on germination between treatments, in addition tothe different combined substrates in which it was put to germinate,differences were evidenced in how many growth variables. Giving us asresults several similarities between treatments and substrates
Presence of Fusarium spp. complex in diseased trees of Gmelina arborea Roxb (melina) in Ecuador.
Get PDFThe area planted with Gmelina arborea (melina) in Ecuador hasincreased in the last decade, currently this forest species is affectedby the disease "vascular wilt and stem rot", which is killing thousandsof trees in the country. Ceratocystis fimbriata is listed as the causativeagent of the disease, However, the complex symptoms and thefrequent isolation of Fusarium spp. from diseased trees, make ussuspect that this phytopathogen is involved in the pathogenesis ofmelina. Koch\u27s Postulates were applied at the greenhouse level, andfor the effect, 5 treatments based on the inoculation of 17 G. arboreaplants of 4-month-old per treatment were plated. T1 = Fusarium sp.1,T2 = Fusarium sp.2, T3 = Fusarium sp.3, T4 = Fusarium sp.4, and T5 =agar-agar (control). A complete randomized design (CRD) was usedand the plants were evaluated 155 days after inoculation. Thetreatments Fusarium sp.1 and Fusarium sp.2 caused the largestapparent volumes of necrosis (2.31 cm3 and 2.43 cm3), and generatedmild symptoms of disease, however they did not die, so these resultscannot be considered conclusive yet. It is necessary to continueinvestigating the role of Fusarium spp. in the pathogenesis of melina
Everyday stress and emotional intelligence in times of coronavirus
Get PDF2020 was a different year, complicated and of constant uncertainty. This has also affected the child population. Therefore, the aim of the study was to determine the relationship between daily stress and emotional intelligence of elementary school students. The type of study used was descriptive correlational and the design was non-experimental - transversal. The sample consisted of 166 students of both sexes, from 3rd, 4th, 5th and 6th grade of elementary school in a public school, for which a non-probabilistic sampling was used. The instruments used for data collection were: the Daily Stress Inventory for the first variable and the Bar ON ICE - NA Emotional Intelligence Inventory for the second variable. The results indicated that there is a negative relationship of 0.412 (rs = 0.412, p < 0.05) between both variables, validating the proposed hypothesis. It was concluded that daily stress is inversely related to the development of emotional intelligence, and that the dimensions of emotional intelligence should be worked on to reduce stress levels