Page 42 - Koi Net - On-Line Koi Magazine - Issue 50
P. 42

INSECT MEAL



                                                                                                                 Is it the future for Koi foods.
                                                                                                                 Dr. David Pool.



                                                                                                                 The range of foods for Koi and other pond fish has
                                                                                                                 never been larger. Fish food technology is moving
                                                                                                                 forward at a pace, with novel ingredients and formats
                                                                                                                 being used to provide new and innovative foods for our
                                                                                                                 Koi. The choice used to be between pellets and sticks,
                                                                                                                 floating or sinking! Now soft pellets, temperature
                                                                                                                 specific diets, probiotics, prebiotics and vegetarian
                                                                                                                 foods to name but a few are all regulars on aquatic
                                                                                                                 shop shelves.

                                                                                                                 Developments are still occurring and one of the major
                                                                                                                 changes that I believe will happen over the next few
                                                                                                                 years is the increasing use of insects as a key
                                                                                                                 ingredient for Koi and all fish foods. It makes sense in
                                                                                           FISH FOOD             so many ways – after all it is what Koi and their
       Dr. David Pool is the author   “I have been involved in the world of fish for over
       of 3 books on aquarium   45 years, initially as a fish keeper, but then making                            ancestors have been eating for millions of years.
       and pond keeping as well                                                            TECHNOLOGY
       as over 250 articles on   my hobby into a career.                                                         But what insects and why?
       fishkeeping.                                                                        IS MOVING
                             I studied Zoology at the University of Liverpool,                                   Reducing the use of fish meal
                             specialising in Freshwater Fisheries Biology. This was        FORWARD AT
                             followed by 3 years studying the diseases of carp and                               Koi are not fish eaters (or at least they are not designed
                             other freshwater fish. My next 25 years were spent            A PACE                to be fish eaters) – and yet most of the foods that are
                             working for Tetra, the global market leading aquatics                               available to feed them are based on fish meal.
                             company. Initially this involved running the Tetra
                                                                                                                 Fish meal has been used as a key ingredient and
                             Information Centre, which provided advice and
                                                                                                                 source of protein in fish foods because it was (and still
                             guidance to fishkeepers on any concerns they may
                                                                                                                 is) readily available, is relatively inexpensive, and has a
                             have about their fish. I then had positions in marketing
                                                                                                                 good nutritional profile. It is a good ingredient.
                             and selling Tetra products, before becoming the
                                                                                                                 Originally the fish meal was produced from low value
                             Managing Director of a UK business for 10 years.”
                                                                                                                 wild caught fish or from fish that were not suitable for
                                                                                                                 human consumption (often called trash fish). In the past
                                                                                                                 they were caught and processed in vast numbers, even
                                 David is the author of 3 books on aquarium and                                  being scattered on the ground as a fertiliser.
                                   pond keeping as well as over 250 articles on
                               fishkeeping. He has appeared on national radio and                                However, the reduction in fish populations and our
                                television across the world to promote fishkeeping                               increasing awareness of the need for sustainability and
                               and given talks on the subject throughout the world.                              to be environmentally friendly has resulted in a dramatic
                                                                                                                 fall in fish meal production. It more than halved in the
                                                                                                                 twenty-year period from 1994-2014 (from 34 million
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