The consequences of including non-additive effects on the genetic evaluation of harvest body weight in Coho salmon (Oncorhynchus kisutch)

<p>Abstract</p> <p>Background</p> <p>In this study, we used different animal models to estimate genetic and environmental variance components on harvest weight in two populations of <it>Oncorhynchus kisutch</it>, forming two classes i.e. odd- and even-year spawners.</p> <p>Methods</p> <p>The models used were: additive, with and without inbreeding as a covariable (A + F and A respectively); additive plus common environmental due to full-sib families and inbreeding (A + C + F); additive plus parental dominance and inbreeding (A + D + F); and a full model (A + C + D + F). Genetic parameters and breeding values obtained by different models were compared to evaluate the consequences of including non-additive effects on genetic evaluation.</p> <p>Results</p> <p>Including inbreeding as a covariable did not affect the estimation of genetic parameters, but heritability was reduced when dominance or common environmental effects were included. A high heritability for harvest weight was estimated in both populations (even = 0.46 and odd = 0.50) when simple additive models (A + F and A) were used. Heritabilities decreased to 0.21 (even) and 0.37 (odd) when the full model was used (A + C + D + F). In this full model, the magnitude of the dominance variance was 0.19 (even) and 0.06 (odd), while the magnitude of the common environmental effect was lower than 0.01 in both populations. The correlation between breeding values estimated with different models was very high in all cases (i.e. higher than 0.98). However, ranking of the 30 best males and the 100 best females per generation changed when a high dominance variance was estimated, as was the case in one of the two populations (even).</p> <p>Conclusions</p> <p>Dominance and common environmental variance may be important components of variance in harvest weight in <it>O. kisutch</it>, thus not including them may produce an overestimation of the predicted response; furthermore, genetic evaluation was seen to be partially affected, since the ranking of selected animals changed with the inclusion of non-additive effects in the animal model.</p

Vector Borne Diseases in Mid Western Argentina, First Report of Setaria Equina [Nematoda: Onchocercidae] in A Horse [Equus caballus]

ARTÍCULO PUBLICADO EN REVISTA EXTERNA. Vector borne diseases are spreading worldwide. Companion animals can be useful as sentinels for disease surveillance. Setaria spp. are filarial nematodes transmitted by Aedes spp. and Culex spp. Setaria equina has been reported in Asia, Africa and North America. This zoonotic nematode is frequently asymptomatic in horses, except during its erratic migrations. Filarial worms have a tropism for ocular and nervous tissues, having important implications in veterinary and public health. In mid west Argentina, Dirofilaria immitis has already been described affecting a woman and dogs. There are no published reports of Setaria equina in Argentina. During spring of 2016, an adult mare died and at necropsy, nematodes were found in the peritoneal cavity. These parasites were morphologically identified as Setaria equina. The occurrence of this disease in the region highlights the importance of entomologic and sanitary surveillance. Sitio de la revista: https://austinpublishinggroup.com/december-2017/published-articles-11.ph

Holding tank and new wastewater treatment plant in Portomarín, Lugo

[Resumen:] Las nuevas infraestructuras proyectadas darán solución al problema de saneamiento presente en el núcleo poblacional de estudio. El nuevo complejo depurativo constará de un tanque de retención con una capacidad de 700 m3 y una nueva E.D.A.R. con un caudal máximo de tratamiento de 7,65 L/s. Las aguas residuales llegarán por la actual red de saneamiento unitaria por gravedad y una vez que atraviese los distintos compartimentos de diseño del tanque llegará a un pozo de bombeo, donde de impulsarán a una parcela contigua donde se ubicará la nueva E.D.A.R.Traballo fin de grao (UDC.ETSECCP). Enxeñaría de Obras Públicas. Curso 2015/201

Dissemination of visceral leishmaniasis to Western Argentina: When will imported canine vector-borne zoonotic diseases start being local?

Fil: Mera y Sierra, Roberto. Universidad "Juan Agustín Maza". Facultad de Ciencias Veterinarias y Ambientales. Centro de Investigación en Parasitología Regional; ArgentinaFil: Neira, Gisela Natalia. Universidad "Juan Agustín Maza". Facultad de Ciencias Veterinarias y Ambientales. Centro de Investigación en Parasitología Regional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cargnelutti, Diego Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Medicina y Biología Experimental de Cuyo; Argentin

La experimentación en ciencias naturales como estrategia de alfabetización científica

The objective of this study was focused on conducting a review of the current state of experimental activities as a strategy to achieve scientific literacy at school stages. Currently, experimental activities, rather than being associated with problem-solving activities, are oriented to be practical complements of theoretical classes, which implies that it will cause a lack of interest in students for the study of science. Experimental activities are a valuable instance to bring students closer to the study of natural sciences, and we believe that maintaining the investigative character is essential to awaken interest and to achieve an adequate development of scientific literacy and, therefore, critical thinking.El objetivo de este estudio se centró en realizar una revisión y discusión del estado actual de la realización de las actividades experimentales como una estrategia para el logro de la alfabetización científica en etapas escolares. Actualmente, la actividad experimental más que estar asociada a actividades de resolución de problemas, está orientada a ser complemento práctico de clases teóricas, lo cual conlleva a que los estudiantes pierdan el interés por el estudio de las ciencias. Las actividades experimentales son una instancia valiosa para acercar al estudiantado al estudio de las ciencias naturales y pensamos que mantener el carácter indagatorio es fundamental para despertar el interés y lograr un adecuado desarrollo de la alfabetización científica y, por ende, pensamiento crítico

Plan de Negocios Conjunto Residencial Villa Almendro.

This study, the Business Plan of Conjunto Residencial "Villa Almendro", talks about the particular terms of design and planning of this medium sizedrsidencial estate that will lead us to achieve the objectives of the investor and the organization. The project consists of 178 houses and parking, with services and equipment, located in Calderon. The set is implemented in continuous blocks of 2 or 3 floors houses, between green and common areas. For the development we have the input of land and 50 percent sales reservation. The conclusions of Business Plan would ensure the financial viability of the project. The analysis has been focused in different aspects: from country's macroeconomic situation, real estate market conditions and competition; urban particularities of the area and new neighborhood, to architectural features and assembly techniques and buildings. With this base we can set operation structure costs, strategies to commercial success, and, with financial analysis, the sensitivity and inherent risks thereof. Finally we have considered legal requirements and substantial elements for Project Management implementation. As a result of this process, we can conclude in the viability of building Villa Almendro residential estate.Este estudio, denominado Plan de Negocios del Conjunto Residencial “Villa Almendro”, trata de los términos particulares de diseño y planificación de un proyecto inmobiliario de tamaño mediano para alcanzar los objetivos del inversionista y de la organización. El proyecto comprende la construcción de un conjunto habitacional de 178 casas de patio con servicios y equipamiento, en Calderón. El conjunto se implanta en bloques continuos de casas adosadas de 2 y 3 pisos, separados por áreas verdes y otros espacios comunes. Para la operación inmobiliaria se cuenta con el aporte del terreno y la reserva de venta de la mitad de las viviendas. El contenido y conclusiones del Plan de Negocios viabilizarán el financiamiento de la construcción. En el análisis se ha enfocado desde los aspectos relacionados con el entorno macroeconómico del país; las condiciones del mercado inmobiliario y la competencia; las particularidades urbanas del sector y del nuevo vecindario; hasta las características arquitectónicas y técnicas del conjunto y de las edificaciones. Con esta base se ha establecido la estructura de costos de la operación; la estrategia comercial propuesta para el éxito del proyecto; y, por medio del análisis financiero, la sensibilidad y riesgos inherentes del mismo. Finalmente se ha considerado los requisitos de orden legal y los elementos sustanciales a tomar en cuenta para implementar la Dirección de Proyectos en este negocio. Como resultado de este proceso, se concluye que la construcción del Conjunto Residencial “Villa Almendro” es viable