
handle: 10612/17527
[ES] El enriquecimiento ambiental es firmemente reconocido como una de las estrategias para conseguir o incrementar el bienestar de los animales en cautiverio, el cual es un tema de gran importancia hoy en día. Uno de los factores que pueden perturbar el bienestar animal y producir efectos negativos es estar sometidos a condiciones de estrés. Este estudio se ha centrado en el pez cebra, uno de los modelos animales ampliamente utilizado en investigaciones científicas, con el objetivo de analizar si el enriquecimiento ambiental puede atenuar los efectos negativos del estrés en peces teleósteos. Para llevar a cabo el estudio, se seleccionaron hembras de peces cebra, que fueron asignadas a dos grupos: un grupo control, y un grupo experimental con un entorno enriquecido. Posteriormente, cada grupo se sometió a un protocolo de estrés crónico impredecible durante un periodo 7 días. Los efectos sobre el comportamiento de los peces fueron evaluados utilizando el test denominado Novel Tank Test. Los datos obtenidos demuestran que el estrés y el enriquecimiento ambiental no modifican parámetros cinéticos, sin embargo, sí afectan a la distribución de los peces en las zonas del tanque, favoreciendo una conducta más exploratoria por parte de los peces mantenidos en un ambiente enriquecido
[EN] Environmental enrichment is firmly recognised as one of the strategies to achieve or increase the welfare of animals in captivity, which is an issue of great importance today. One of the factors that can disrupt animal welfare and produce negative effects is being subjected to stressful conditions. This study focused on zebrafish, one of the animal models widely used in scientific research, with the purpose to analyse if environmental enrichment can attenuate the negative effects of stress in teleost fish. To carry out the study, female zebrafish were selected and assigned to two groups: a control group and an experimental group with an enriched environment. Each group was then submitted to an unpredictable chronic stress protocol for a period of 7 days. The effects on the behaviour of the fish were evaluated using the Novel Tank Test. The data obtained show that stress and environmental enrichment do not modify kinetic parameters, however, they affect the distribution of the fish in the tank zones, favouring a more exploratory behaviour by the fish kept in an enriched environment
26 páginas, ilustraciones, referencias bibliográficas
Biología, Novel Tank Test (NTT), 2407 Biología Celular, Pez cebra, Enriquecimiento ambiental, Protocolo de estrés crónico impredecible (UCS), Estrés
Biología, Novel Tank Test (NTT), 2407 Biología Celular, Pez cebra, Enriquecimiento ambiental, Protocolo de estrés crónico impredecible (UCS), Estrés
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