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Authors
Advisor(s)
Abstract(s)
Effects of porcine bile extracts added at three different dietary
concentrations 0, 10 and 20 g kg)1 were studied on
astaxanthin serum concentration in rainbow trout (mean
weight 200 ± 7 g). Astaxanthin from micro-algae Haematococcus
pluvialis and synthetic astaxanthin (CAROPHYLL
pink) were incorporated in diets of rainbow trout
at a rate of 100 mg astaxanthin kg)1 of feed. Fish were hand
fed twice a day. After 5 days of feeding there was a significant
effect of the pigment source on the ratio (total blood
astaxanthin per unit body weight to cumulative astaxanthin
intake per unit body weight). Trout receiving synthetic
astaxanthin showed a significantly (P < 0.05) higher ratio
than trout fed algal astaxanthin. Increasing dietary bile
extract did not lead to produce any effect on this ratio. The
power of the statistical analysis is discussed. Therefore, the
interaction (pigment source · dietary bile concentration)
showed no more effect.
Description
Keywords
Astaxanthin Bile extracts Haematococcus pluvialis Pigmentation Serum Trout
Pedagogical Context
Citation
"Aquaculture Nutrition" . ISSN 1353-5773 10:6 (2004) 353-357
Publisher
Blackwell Publishing