SISTEMATIZACIÓN DEL PROYECTO DE CUNICULTURA COMO ESTRATEGIA PARA EL APRENDIZAJE SIGNIFICATIVO DE CONCEPTOS DE GENÉTICA

DESCRIPCIÓNLa Educación  exige  actualmente  nuevos  retos  que  son  asumidos  por  estudiantes, docentes  y  la  sociedad,  de  tal manera  que  incite  al  desarrollo  de  competencias, habilidades,  actitudes  y  valores  que  hacen  parte  del  desarrollo  integral  de  todo sujeto. De tal forma, el docente es el encargado de ser guía y orientador durante los procesos de enseñanza y aprendizaje. Así mismo, puede transformar concepciones en los aprendices a través de la creación de ambientes apropiados para el aprendizaje de acuerdo a los estilos de aprendizaje de sus estudiantes.PALABRAS CLAVE: Aprendizaje signifcativo, estrategias,competencia, enseñanza, aprendizaje.Rabbits project as a strategy for signifcant learning concepts in genetic DESCRIPTIONThe education now requires new challenges by students,  teachers and society, and the main  function  from  them  is  developing  skills,  abilities,  attitudes  and  values. Furthermore,  the  teacher  is  the  main  responsible  during  the  education  process through learning and teaching. Besides, the teacher can change their minds, creating new strategies for learning in different ways.KEY WORDS: Signifcant learning, strategies, competence, teaching     and learning

Effect on Intermediary Metabolism and Digestive Parameters of the High Substitution of Fishmeal with Insect Meal in Sparus aurata Feed

The depletion of traditional protein sources and the impact this causes on the production costs of aquaculture feed make it necessary to find alternative materials that allow for the sustainability of production. Among various proposals, insects have drawn scholarly attention because of their high protein content and the efficiency of their production, both from an environmental and an economic perspective. However, nutritional changes in fish diets require further clarification regarding the effect of this new ingredient in fish performance and physiology. In this study, we evaluated the use of two insect meal species, Hermetia illucens and Tenebrio molitor, for the partial replacement of fishmeal, as well as their influence on growth indices and the gut microbiome. Although the results showed a worsening of biometric parameters and a modification of the microbial community, the impact was different depending on the insect species and their rearing conditions. Thus, specific studies for each case are recommended.Hermetia illucens and Tenebrio molitor were tested on account of their potential to replace fish protein in feed. Two levels of replacement for H. illucens, 30% and 50% (H30 and H50), and one for T. molitor, 50% (T50), as well as an additional diet with a modified fatty acid fraction (H50M), were investigated in relation to juvenile Sparus aurata growth indices, enzyme activities and gut microbiome. A T50 diet showed similar results to a control (C) diet, with no significant differences regarding morphological indices and minor differences for nutritional indices. Regarding the gut microbiome, H50M was the diet which showed the more similar prokaryotic community to C, which suggests that fatty acid fractions might influence the composition of the gut microbiome. Nevertheless, differences appeared to be related to a redistribution of dominant species, while changes in species affiliation were limited to minoritary species. The positive correlation between some of these minoritary species (Peptostreptococcus russellii, Streptococcus dysgalactiae and Weisella confusa) and several fish growth parameters might explain differences between control and insect diets. Deciphering such uncertainty and revealing the potential role these unusual species may play on fish performance should be addressed in future investigations.INIA (Spanish Agricultural and Agro-Food Research Institute)Project RTA 2015-00021-C03-02 and FEDER fundsEuropean Maritime and Fisheries Fund (EMFF) and Consejeria de Agricultura, Pesca y Desarrollo Rural, OPP71