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The importance of targeted R&D in improving hatchery nutrition By David E Terrey, Research Technician, Pontus Research Ltd. and Dr. Jack M. James, Principal consultant, Pontus Aqua; Director, Pontus Research Ltd.

With the increasing strain on the marine food industry it is widely accepted that wild fish stocks alone cannot satisfy the increasing demand for seafood (Pauly et al. 2002). The importance placed upon aquaculture as an alternative to commercial capture fisheries demands that the industry continue to expand and develop (Edwards, 2009), increasing efficiency and reducing reliance on dwindling wild stocks. The movement towards fully sustainable production requires further expansion and improvement of aspects of both the hatchery and grow out phases across a broad range of areas such as nutrition, breeding and health.

Within aquaculture in general, one of the most important aspects to consider is the continued development and improvement of feeds, feed ingredients and feed additives and this is certainly the case in the hatchery sector. Improvement here can increase the efficiency of the hatchery itself, optimizing diets and feeding protocols and improving larval and juvenile quality (Hamre et al. 2013). Though considerable progress has been seen in developing our understanding of

larval nutrition, many questions remain unanswered. Hatchery processes for many species, especially marine species, are still dependent on the use of live feed such as rotifers and Artemia, despite extensive research into alternatives (Liao et al. 2001; Langdon, 2003; Støttrup & McEnvoy, 2003). Replacement of live prey with artificial microparticulate diets holds a variety of advantages, but the most important benefit is that their nutritional composi-

Hatcheryfeed vol 5 issue 3 2017  

The latest in feed and nutrition for early life stage and broodstock aquatic hatchery species. Hatcheryfeed is a quarterly magazine from Aqu...