Dry whey meal as a protein source in practical diets for Nile tilapia, Oreochromis niloticus fingerlings
| Autor: | Fayza E. Abbass, Mohsen Abdel-Tawwab |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Meal Protein efficiency ratio Ecology A protein 04 agricultural and veterinary sciences Aquatic Science Biology biology.organism_classification 03 medical and health sciences Nile tilapia Oreochromis 030104 developmental biology Fish meal Lipid content 040102 fisheries 0401 agriculture forestry and fisheries Fish growth Food science |
| Zdroj: | Journal of Applied Aquaculture. 28:276-284 |
| ISSN: | 1545-0805 1045-4438 |
| DOI: | 10.1080/10454438.2016.1215686 |
| Popis: | This study was conducted as a trial of using dry whey meal (DWM) as a substitute for fish meal (FM) in practical diets for Nile tilapia, Oreochromis niloticus. Triplicate fish groups were fed on five isonitrogenous (30.2%) and isolipidic (6.9%) diets. The control diet (D1) used FM as the sole protein source. In the other four diets (D2–D5), FM protein was substituted by 25, 50, 75, or 100% DWM. Fish (3.5 ± 0.1 g) were stocked at a rate of 20 fish per 100-L aquarium and fed one of the tested diets up to satiation twice daily for 12 weeks. Fish growth, feed utilization, protein efficiency ratio, apparent protein utilization, and energy utilization for fish fed DWM diets up to 75% FM (D2–D4) tended to be higher but were not statistically different than the control diet. No significant effect of diet was found in whole-body moisture, crude protein, and total ash contents. Whole-body lipid content in fish fed the 100% DWM (D5) diet was significantly higher than that for fish fed the control diet. The o... |
| Databáze: | OpenAIRE |
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