The definition of adequate feeding strategies in fish culture is
proportionally more crucial during the early life stages, when
suboptimal feeding can impact not only on growth but also on
survival. The larvae of most fish species have a narrow resource
spectrum and they generally require live feed which are expensive,
manpower demanding or complicated to produce. On the other hand,
live feed possess one major advantage in that they remain alive and
accessible for a longer time (especially for species that do not feed on
the bottom), in contrast to inert food particles. Hence, when a live
prey has been found adequate for a particular life stage, the feeding
strategy essentially consists of determining how much food should be
delivered to fulfil the requirements of the larvae. This can be deduced
from the relationships between fish size and food intake for meal size,
and between fish size and gut transit rate for meal frequency.
The definition of adequate feeding strategies in fish culture isproportionally more crucial during the early life stages, whensuboptimal feeding can impact not only on growth but also onsurvival. The larvae of most fish species have a narrow resourcespectrum and they generally require live feed which are expensive,manpower demanding or complicated to produce. On the other hand,live feed possess one major advantage in that they remain alive andaccessible for a longer time (especially for species that do not feed onthe bottom), in contrast to inert food particles. Hence, when a liveprey has been found adequate for a particular life stage, the feedingstrategy essentially consists of determining how much food should bedelivered to fulfil the requirements of the larvae. This can be deducedfrom the relationships between fish size and food intake for meal size,and between fish size and gut transit rate for meal frequency.
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