Effects of diets supplemented with iron citrate on some physiological parameters and on burst swimming velocity in smoltifying hatchery-reared masu salmon (Oncorhynchus masou)

In order to produce hatchery-reared (hatchery) smolt of high quality, we examined the effects of a diet supplemented with iron citrate on the burst swimming velocity (BSV) and on several physiological parameters in smoltifying hatchery-masu salmon, Oncorhynchus masou. Experiments in 2003 and 2004 we...

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Bibliographic Details
Published in:Aquaculture 2007-12, Vol.273 (2-3), p.284-297
Main Authors: Mizuno, Shinya, Misaka, Naoyuki, Ando, Daisei, Torao, Mitsuru, Urabe, Hirokazu, Kitamura, Takaya
Format: Article
Language:English
Subjects:
Adenosine triphosphatase
adenosine triphosphate
Animal aquaculture
animal growth
Animal productions
Aquaculture
ATP
Biological and medical sciences
Brackish
Burst swimming velocity
Diet
Experiments
feed supplements
fish culture
fish feeding
Fish hatcheries
Freshwater
Fundamental and applied biological sciences. Psychology
General aspects
Hemoglobin
Iron
Iron citrate
liver
Marine
Masu salmon
mortality
muscle tissues
Oncorhynchus masou
physiological response
Salmon
Smolt
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Summary:In order to produce hatchery-reared (hatchery) smolt of high quality, we examined the effects of a diet supplemented with iron citrate on the burst swimming velocity (BSV) and on several physiological parameters in smoltifying hatchery-masu salmon, Oncorhynchus masou. Experiments in 2003 and 2004 were performed for about 3 months in spring using 40 or approximately 20,000 fish per treatment group, respectively. Fish were fed control (796 mg iron/kg food), iron-1 (1515 mg/kg) or iron-2 diets (2003 only; 3176 mg/kg) to satiation every day and periodically sampled for analyses. In addition, wild fish were analyzed in both years. The hemoglobin (Hb) concentration, BSV, total iron content in the liver and in stomach food remnants and the ATP content in the liver and white muscle in hatchery controls were significantly lower than those in wild fish (P
ISSN:0044-8486
1873-5622
DOI:10.1016/j.aquaculture.2007.10.011