10 research outputs found
Analysis of a silvopastoral system with animals of the autochtonous swine breed Porco Celta in Galicia (NW Spain)
PosterPig traditional production systems in Galicia (NW Spain) are based on seasonal resources us like chestnut and pastures. The Breeders' Association of the autochthonous Celtic breed of pigs (ASOPORCEL) has developed a novel system within the traditional Galicia grazed forest areas in order to preserve landscape quality and biologic diversity, minimizing therefore the environmental impact of pig production. One of the main concerns of silvopastoral system implementation is the need of fencing. Fencing costs could be reduced if animals are rearing with infrastructures based on Pavlov animal condition reflex management in an extensive system. Therefore, cost reduction is obtained thanks to the clear reduction of personnel needs to feed animals, fencing costs and understorey clearance to reduce forest fires. In 2013 an experiment was carried out in Nebra (NW of Spain) in a young Pinus pinaster plantation. Pig stocking rate was around 3.85 pigs per ha (25 males and 25 females) in a total surface of 13 ha. Forest grazing program was initiated when animals were three months old in March 2013 and finished in December 2013. They were allowed access the whole plot. Concentrate was provided twice every day after sounding an alarm to attract pigs. All the animals adapted rapidly to the system. Two types o understory vegetation (Ulex and Pteridium) was sampled following a transect from close to far away feeding areas (three distances). Fern control was intense, being gorse less consumed. After nine months, average animal daily gain (ADG) obtained was 290 ± 4 gr. We can conclude that the used method is perfectly adaptable to the systems of exploitation suggested for the Celtic pig breed. This will be highly relevant to preserve this autochthonous breed and increase the number of extensive farms in the area while contributing to fix population dedicated to use silvopastoral systems
Entornos personales de aprendizaje: un estudio comparativo entre profesores costarricenses en formación y en ejercicio
This research makes a comparative analysis of the frequency of use of various ICT tools that 381 students in Education degrees and 218 Costa Rican teachers incorporate in their Personal Learning Environments (PLE) in order to search for information, generate content, and communicate. An ex post facto study was conducted using the survey method. The results revealed poor integration of technological resources into the PLEs of both groups, although it has been found that it is the students who use the greatest number of tools. It proposes the need to implement measures to enrich the PLEs.Esta investigación analiza comparativamente la frecuencia de uso de diversas herramientas TIC que 381 estudiantes de las carreras de Educación y 218 profesores costarricenses incorporan en sus Entornos Personales de Aprendizaje (PLE) para buscar información, generar contenido y comunicarse. Se realizó un estudio ex post facto utilizando el método de encuesta. Los resultados desvelaron una escasa integración de los recursos tecnológicos en los PLE de ambos colectivos, aunque se ha constatado que son los estudiantes quienes usan un mayor número de herramientas. Se propone la necesidad de arbitrar medidas que contribuyan a enriquecer los PLE