ISSN:
1365-2109
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract. The effect of betaine (+ amino acid) supplementation on the seawater adaptation of salmon, Salmo salar L., smolts was studied in two separate trials. The fish were fed with feed containing various levels (0-5-1-5%) of FinnStim, a commercial product with betaine as the main component, for a 6–8 week period before seawater transfer and during the 3-week period in sea water. Growth and mortality were followed during the course of the studies, and the ionic and osmotic balance of fish estimated prior to seawater transfer, and one day and one week after the transfer.Smolts fed with FinnStim had less weight loss after seawater transfer in both trials, and significantly lower mortality in the second trial, than the control smolts. Smolts fed with 1% FinnStim tended to have faster recovery in appetite after seawater transfer. While the main plasma electrolytes showed no clear response to FinnStim treatment, the intramuscular potassium load in sea water was less pronounced in FinnStim fish.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2109.1994.tb00682.x
