Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Effect of feed type and feeding frequency on macrophage functions in tilapia (Oreochromis niloticus L.)
Year:2009
Research Areas
  • Animal production
Information
Abstract
In fresh water recirculation systems the type of feed and feeding frequency have a direct effect on water quality, growth, fish welfare and the response of the immune system. Four types of feed with different sources of plant protein (soybean concentrate, sunflower meal, corn gluten and pea) were provided at two feeding frequencies (two and eight times day1) to observe effects on growth, cortisol levels and innate immunity (macrophage phagocytosis and respiratory burst) on tilapia in early stages of growth (2¿10 g). Growth and cortisol parameters were quite similar among the groups of tilapia fed the different diets and frequencies at the end of the feeding period. Phagocytosis and respiratory burst were also very similar with the four feed types. However, macrophages from fish fed twice day1 were much less efficient in clearing bacteria after 24 h than the groups fed eight times day1. Our results suggest that an increased feeding frequency may confer a higher resistance to disease.
International
Si
JCR
Si
Title
FISH AND SHELLFISH IMMUNOLOGY
ISBN
1050-4648
Impact factor JCR
3,161
Impact info
Volume
Journal number
27
From page
325
To page
329
Month
ENERO
Ranking
Participants
  • Autor: Morris Ricardo Villarroel Robinson (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Producción Animal
  • Departamento: Producción Animal
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