Dr Vincent FOURNIER, R&D Manager AQUATIV. Email: vfournier@aquativ-diana.com
To contend with the palatability problems that have arisen as a result of fishmeal replacement in aquafeed, Aquativ has been developing and selling natural attractants for more than four years. Excellent feed intake and growth improvement have already been obtained in laboratory and with aquafeed producers in various species such as european seabass, atlantic salmon, yellowtail.
Some recent trials were conducted in shrimp (penaeus vannamei) in well known testing facilities: the objective was to demonstrate if a good level of palatability could be reached using natural attractants in shrimp diets containing low levels of fish meal.
Growth and preference trials were conducted. Several PE were added to feed formula containing low fish meal levels (LFM), and compared with formula containing a high level of fish meal (HFM) without PE. Shrimps were fed to satiety by feeding trays for 70 and 15 days in growth and preference trials, respectively.
No significant difference was observed between HFM and LFM diet showing that scarce raw materials like fish meal could be successfully replaced with more available plant based raw material when using natural attractants.
For more information and to register for Aquafeed Horizons Asia, visit www.aquafeed.info
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