Egg Industry - March 2018 - 22
22 ❙ EggIndustry
FISH MEAL IN POULTRY DIETS
Against fish meal are numerous reports about its quality
(mostly rancidity but also putrefaction of proteins due to
improper storage of fish before processing into fish meal).
One also has to consider the social/environmental image
or impact when using an ingredient that is depleting wild
stocks of fish, but such scruples also affect those industries
that use up current quantities of fish meal without much
regard to its cost. Reports that fish meal spread diseases,
such as Salmonella, are not new or novel. Any animal or
otherwise ingredient can become a carrier of disease microorganisms, and excluding one or the other has not stopped
diseases from spreading. It is lack of proper quality control
and not specific ingredients that cause this kind of problem - as it has repeatedly been demonstrated.
Wild stocks of fish suitable for fish meal do not appear
to recover, at least not as fast as would enable prices to
drop back to historical levels. If aquafeeds reduce their
dependence on fish meal to feed carnivorous farmed fish,
then perhaps we can enjoy some decrease in prices, but
this remains a rather remote possibility as well. Thus, traditional fish meal will remain expensive in the foreseeable
future unless we have a revolutionary turn of events. What
is most promising is the conversion of fish waste into fish
meal. The potential is huge; the quantities are available,
but the investment is equally daunting, and the word waste
is not only deceptive, but also misleading. Fish meal from
waste parts can be of even higher quality than fish meal
from fished stock, but that is a totally different story. ■
Ioannis Mavromichalis, Ph.D., is an animal nutrition
industry consultant. To contact Mavromichalis, email
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www.WATTAgNet.com ❙ March 2018