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Feeding response of marble goby (Oxyeleotris marmorata) to organic acids, amino acids, sugars and some classical taste substances

By Leong-Seng Lim, Sian-Kang Jason Lai, Annita Seok-Kian Yong, Rossita Shapawi, Gunzo Kawamura

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Abstract

Weaning from live to formulated feeds is a major challenge in the culture of marble goby Oxyeleotris marmorata. It can be solved through dietary supplementation of suitable taste substance as feeding stimulant. However, there is still no information on the suitable feeding stimulant for this species. The present study was conducted to evaluate the feeding response of juvenile O. marmorata to 13 organic acids, 19 amino acids, 5 sugars and 2 classical taste substances in a concentration of 0.1M. The response was judged through behavioural observations to determine the potential feeding stimulant. Fifty O. marmorata were conditioned to accept agar gel pellet, and then tested with the agar gel pellets that contained each of the taste substances. Pure agar gel pellet was used as the negative control. All agar gel pellets with organic acids were fully ingested by the fish (100%). Among the 19 amino acids tested, aspartic acid attained the highest ingestion ratio (94%) which was significantly different (P

Publication Title Applied Animal Behaviour Science
Volume 196
Pages 113-118
ISBN/ISSN 0168-1591
DOI https://doi.org/10.1016/j.applanim.2017.06.014
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Tags
  1. Feeding
  2. Feeding behavior
  3. preferences