Dietary phosphorus requirement of coho salmon (Oncorhynchus kisutch) alevins cultured in freshwater
A 12‐week feeding trial was conducted to evaluate the effects of dietary phosphorus on growth performance, whole‐body composition, liver phosphorus metabolism enzyme and digestive enzyme activities of coho salmon (Oncorhynchus kisutch) alevins. Six experimental diets were formulated with graded phos...
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Veröffentlicht in: | Aquaculture nutrition 2021-12, Vol.27 (6), p.2427-2435 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A 12‐week feeding trial was conducted to evaluate the effects of dietary phosphorus on growth performance, whole‐body composition, liver phosphorus metabolism enzyme and digestive enzyme activities of coho salmon (Oncorhynchus kisutch) alevins. Six experimental diets were formulated with graded phosphorus levels of 0.3%, 0.59%, 0.73%, 0.85%, 1.05% and 1.19% respectively. Each diet was fed to triplicate groups of fish (0.36 ± 0.01 g), which were randomly assigned to 18 tanks (water volume 240‐L), with each stocked initially with 50 fish. The specific growth rate (SGR), whole‐body and vertebrae phosphorus contents, lipase and amylase were significantly improved with dietary phosphorus level increased from 0.3% to 0.85% (p |
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ISSN: | 1353-5773 1365-2095 |
DOI: | 10.1111/anu.13374 |