Nofima reports

Rapport/Report 19/2012 English Summary

Akse, Leif; Joensen, Sjurdur; Heia, Karsten; Tobiassen, Torbjørn I; Sivertsen, Agnar Holten; Wang, Pål Anders

Publication details

Publisher: Nofima AS

Issue: 19/2012

Number of pages: 20

International Standard Numbers:
Printed: 978-82-7251-988-8

Open Access: green


Both the bleeding method and time before bleeding starts, impact on how well the fish are bled. The experiment documents this for bleeding methods and time intervals from capture to bleeding that are realistic in commercial cod fisheries. When cod was bled alive, immediately after catch, two-stage bleeding methods, where the fish is first bled and afterwards gutted, provided better bleeding, compared to direct gutting methods. The bleeding became poorer depending on the time from catch to start of bleeding. There was significant (p<0.01) difference between all the tested time intervals, which were 0, 30, 60, and 180 minutes from catch to start of bleeding.