Skip to main content

Cyclic feeding and subsequent compensatory growth do not significantly impact standard metabolic rate or critical swimming speed in rainbow trout

Buy Article:

$43.00 plus tax (Refund Policy)

Standard metabolic rate (Rs) and critical swimming speed (Ucrit) were used to assess the aspects of physiological status (stamina) of rainbow trout Oncorhynchus mykiss. Fish were fed either 1·5% body mass daily, 1·5% body mass cyclically (3 weeks of food deprivation followed by 3 weeks of refeeding), a ration based on Stauffer’s formula (a maximum temperature-specific ration level) daily or on Stauffer’s ration cyclically for 18 weeks. It was hypothesized that if cyclic feeding had no impact on the status of the fish, Rs and Ucrit would not cycle with the feeding regime. This hypothesis was supported. No significant difference was found between the mean mass and the fork length of the four groups at the end of the experiment (P > 0·05). Feeding had no effect on changes in Rs among the four groups, which were significantly different throughout the experiment (P≤ 0·05). No significant difference in Ucrit was found (P > 0·05) until at week 12 between groups fed 1·5% body mass ration cyclically and Stauffer’s ration daily (P≤ 0·05). For groups fed a 1·5% body mass ration cyclically and daily, significant differences occurred at week 15 (P≤ 0·05) but no significant difference was found by week 18 (P > 0·05), suggesting that cyclic feeding does not affect the aspects of physiological status (stamina) of the fish.
No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Keywords: Oncorhynchus mykiss; critical swimming speed; cyclic feeding; standard metabolic rate

Document Type: Regular Paper

Affiliations: Department of Zoology, University of British Columbia, British Columbia, V6T 1Z4 Canada

Publication date: 2006-09-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more