Till sidans topp

Sidansvarig: Webbredaktion
Sidan uppdaterades: 2012-09-11 15:12

Tipsa en vän
Utskriftsversion

Seasonal changes in muscl… - Göteborgs universitet Till startsida
Webbkarta
Till innehåll Läs mer om hur kakor används på gu.se

Seasonal changes in muscle structure and flesh quality of 0+ and 1+ Atlantic salmon (Salmo salara L.):impact of feeding regime and possible roles of ghrelin

Artikel i vetenskaplig tidskrift
Författare Chris Andre Johnsen
Örjan Hagen
Christel Solberg
Björn Thrandur Björnsson
Elisabeth Jönsson
SJS Johansen
Eldar Å Bendiksen
Publicerad i Aquaculture Nutrition
Volym 19
Nummer/häfte 1
Sidor 15-34
ISSN 1353-5773
Publiceringsår 2013
Publicerad vid Institutionen för biologi och miljövetenskap
Sidor 15-34
Språk en
Länkar dx.doi.org/10.1111/j.1365-2095.2011...
Ämnesord feeding regime, flesh quality, ghrelin, growth performance, muscle cellularity, seasonal variation, smolt type
Ämneskategorier Biologiska vetenskaper, Zoofysiologi

Sammanfattning

Growth performance, muscle cellularity, flesh quality, and plasma ghrelin were investigated in 0+ and 1+ farmed Atlantic salmon (Salmo salar L.) from 40 g to 4.3 kg. Reduced meal frequency was introduced in both smolt groups from ~1.5 kg; one meal per second day (<5 °C) to one daily meal (>5 °C), while control groups were fed one to three daily meals. Results show that 0+ salmon had higher final fibre number and density, pigment content, red colour intensity, firmer flesh, and lower fillet fat content than 1+ salmon at 4.3 kg, affected by season and smolt type. Muscle fibre recruitment was an important determinant of fillet firmness and colour, possibly influenced by the prenatal temperature regime. Fish fed reduced meal frequency showed temporal reduced feeding ration, but growth performance was not compromised in any smolt groups at harvest. However, fillet fat, gaping, and colour decreased by less frequent feeding, with permanent effects in 1+ salmon for gaping and fat. Reduced meal frequency is therefore considered to be a promising tool for managing important flesh quality attributes in salmon without compromising growth performance. It is also suggested that ghrelin stimulates short-term appetite, and perhaps also in the longer term.

Sidansvarig: Webbredaktion|Sidan uppdaterades: 2012-09-11
Dela:

På Göteborgs universitet använder vi kakor (cookies) för att webbplatsen ska fungera på ett bra sätt för dig. Genom att surfa vidare godkänner du att vi använder kakor.  Vad är kakor?