Gastrointestinal evacuation and return of appetite in Atlantic halibut (Hippoglossus hippoglossus L.)

Academic article

Year of publication: 2025
Journal: Aquaculture
External websites: DOI; Nasjonalt vitenarkiv
Involved from NIVA: Ole-Kristian Hess-Erga
Contributors: Endre Lygre, Ana S. Gomes, Ole-Kristian Hess-Erga, Birgitta Norberg, Jonatan Nilsson, Prescilla Perrichon, Ivar Rønnestad Show all

Summary

Grow-out Atlantic halibut (Hippoglossus hippoglossus) grows slowly, partly due to limited and varied feed intake. This study aimed to determine gastrointestinal (GIT) evacuation time and examine correlations between GIT filling, transit time, and mRNA expression of appetite-controlling genes. Six groups of 1, 2, and 3 kg individuals were fed a single meal with size-adjusted pellets and sampled 1, 3, 6, 10, 23, 48, 71, 96, and 120 h post-feeding.