期刊
AQUACULTURE
卷 476, 期 -, 页码 79-85出版社
ELSEVIER
DOI: 10.1016/j.aquaculture.2017.04.021
关键词
Alternative protein sources; Amino acids; Insect meal; Hermetia illucens; Animal feedstuffs
资金
- Strategic Funding through national funds by FCT - Foundation for Science and Technology [UID/Multi/04423/2013]
- European Regional Development Fund (ERDF)
- VEGICOR-AMINOAQUA project grant [31-03-05-FEP-43]
A feeding trial was carried out to assess the effect of partially replacing fish meal (FM) by Black soldier fly pre-pupae meal (HM) in diets for European seabass Dicentrarchus labrax juveniles. A FM-based diet was used as a control and three other diets were formulated to include 6.5%, 13%, and 19.5% of HM, replacing 15%, 30% and 45% of FM respectively. Each diet was fed to triplicate groups of fish (initial weight: 50 g) for 62 days. At the end of the trial, there were no differences among groups in growth performance or feed utilization. Plasma metabolic profiles also remained unaffected, except that plasma cholesterol was reduced with dietary HM inclusion. The apparent digestibility coefficients (ADC) of protein, lipids, dry matter, organic matter, and energy were generally high, and not affected by the dietary treatment. The ADC of arginine, histidine, and valine were higher in HM diets when compared to the control. Amylase and protease activities were not affected by dietary HM, while lipase activity was lower in HM 6.5 diets than in the control and HM 19.5 diets. In conclusion, up to 19.5% of HM, corresponding to 22.5% of total dietary protein, may successfully replace FM in diets for juvenile European seabass, without adverse effects on growth performance, feed utilization or digestibility.
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