| Autor: |
W. T. Magee, Ibrahim H. Zeitoun, John E. Halver, Peter I. Tack, Duane E. Ullrey |
| Rok vydání: |
1974 |
| Předmět: |
|
| Zdroj: |
Journal of the Fisheries Research Board of Canada. 31:1145-1148 |
| ISSN: |
0015-296X |
| DOI: |
10.1139/f74-132 |
| Popis: |
Six purified diets ranging from 30 to 55% protein in 5% increments were fed for 10 wk to duplicate groups of coho salmon (Oncorhynchus kisutch) smolts maintained at 10 or 20‰ salinity. The data indicated that minimum protein requirements did not differ for fish at either salinity, and weight gain and protein retention levelled off after 40% protein in the diet was reached. Salinity had a minor effect on the criteria measured whereas the different dietary protein concentrations were of major consequence. The protein efficiency ratio (PER) of the casein diet containing 40% protein was 2.20 ± 0.11 whereas apparent net protein utilization (NPU) at the same level was 36.1 ± 1.8. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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