Anatomy, immunology, digestive physiology and microbiota of the salmonid intestine: Knowns and unknowns under the impact of an expanding industrialized production
Håvard Bjørgen, Yanxian Li, Trond M. Kortner, Åshild Krogdahl, Erling Olaf Koppang
Abstract
Increased industrialized production of salmonids challenges aspects concerning available feed resources and animal welfare. The immune system plays a key component in this respect. Novel feed ingredients may trigger unwarranted immune responses again affecting the well-being of the fish. Here we review our current knowledge concerning salmon intestinal anatomy, immunity, digestive physiology and microbiota in the context of industrialized feeding regimes. We point out knowledge gaps and indicate promising novel technologies to improve salmonid intestinal health.
Topics & Concepts
BiologyImmune systemContext (archaeology)Mucosal immunityImmunityFish <Actinopterygii>Gut floraImmunologyFisheryPaleontologyAquaculture disease management and microbiotaAquaculture Nutrition and GrowthBiochemical Analysis and Sensing Techniques