Effect of different feeds on growth and fecundity in ornamental fish, Betta splendens (Regan)

Abstract

Feed intake, conversion and fecundity of an ornamental fish Betta splendens
were studied as a function of feed types. Fish fed with the mixed diet and liver
showed higher feeding rates followed by those fed with Artemia sp. Conversion
rate and efficiency were maximum in fish fed with earthworm followed by those
with Artemia sp. Fish fed with pelleted feed did not sexually mature and spawn,
whereas, those maintained on other groups spawned thrice during the experimental
period. The fecundity of B. splendens fed with various types of feed decreased
in the following order : Artemia sp. > mixed diet > liver > earthworm.
The number of eggs laid increased with increase in the number of spawning in
all groups. The perecentage hatching of eggs in fish fed with Artemia sp., mixed
diet and liver did not vary much and it averaged 94.3%. Adult Artemia sp. and
mixed diets were found suitable for enhancing reproductive performance in B.
splendens.