The effect of intermittent feeding on the pre-slaughter fasting response in rainbow trout

Bermejo Poza, R.; Fuente, J. de la; Pérez, C.; Lauzurica Santiago, Sara; Gonzalez, Elena; Díaz Riquelme, M.T. y Villarroel Robinson, Morris (2015). The effect of intermittent feeding on the pre-slaughter fasting response in rainbow trout. "Aquaculture" (n. 443); pp. 24-30. ISSN 0044-8486. https://doi.org/10.1016/j.aquaculture.2015.03.007.

Descripción

Título: The effect of intermittent feeding on the pre-slaughter fasting response in rainbow trout
Autor/es:
  • Bermejo Poza, R.
  • Fuente, J. de la
  • Pérez, C.
  • Lauzurica Santiago, Sara
  • Gonzalez, Elena
  • Díaz Riquelme, M.T.
  • Villarroel Robinson, Morris
Tipo de Documento: Artículo
Título de Revista/Publicación: Aquaculture
Fecha: Junio 2015
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Producción Agraria
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (8MB) | Vista Previa

Resumen

Pre-slaughter fasting, usually measured in days, helps to empty the digestive system but less is known about its effect on fish welfare or flesh quality. We evaluated the combined effects of fasting (measured in degree-days, °C d), preceded by intermittent feeding in the last month of production, on the flesh quality rainbow trout (Oncorhynchus mykiss). Trout (n = 240) were fed the same total amount of food either daily (D), once every two days (2D) or once every four days (4D) for one month, and then fasted for 24.3 °C d (2 days) or 102 °C d (9 days). There was a significant interaction between the effects of intermittent feeding and pre-slaughter fasting for most of the parameters measured. Slaughter weight was higher in 2D and 4D trout after two days of fasting, probably since they had more feed in their stomachs. Muscle glycogen and the hepato-somatic index were also higher in 2D trout after 2 days of fasting, suggesting higher energy reserves. There was no interaction between the effects of intermittent feeding and fasting on final muscle pH which was higher after 9 days of fasting, indicating poorer flesh quality. Overall, the results suggest that trout that received a skip-a-day feeding schedule one month before slaughter, adapt better to a two day fast than trout fed daily or once every four days.

Más información

ID de Registro: 40962
Identificador DC: http://oa.upm.es/40962/
Identificador OAI: oai:oa.upm.es:40962
Identificador DOI: 10.1016/j.aquaculture.2015.03.007
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0044848615001465
Depositado por: Memoria Investigacion
Depositado el: 07 Jul 2016 15:31
Ultima Modificación: 01 Jun 2017 22:30
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM