Potential Plasticity of Artificial Feed Preference in Juvenile Pharaoh Cuttlefish (Sepia pharaonis) Through Progressive Training Programs

The cuttlefish is a commercially important marine species across the world; however, due to the lack of appropriate artificial feed, there is limited future aquaculture development of the cuttlefish. We proposed a novel process comprising (1) feed preference tests and (2) progressive training progra...

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Bibliographic Details
Published inFrontiers in Marine Science Vol. 9
Main Authors Ma, Chia-Huan, Lin, Chih-Hung, Chang, Yung-Cheng, Lee, Hung-Tai, Liou, Chyng-Hwa, Hsu, Te-Hua
Format Journal Article
LanguageEnglish
Published Lausanne Frontiers Research Foundation 07.03.2022
Frontiers Media S.A
Subjects
Aquaculture
Aquaculture development
Artificial diets
behavior
cephalopods
Diet
domestication
Feeds
Fisheries
hatchery
Juveniles
Marine crustaceans
Marine molluscs
Olfaction
Salinity
Sepia pharaonis
Shellfish
Survival
Training
Southeast Asia
Japan
Taiwan
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Summary:The cuttlefish is a commercially important marine species across the world; however, due to the lack of appropriate artificial feed, there is limited future aquaculture development of the cuttlefish. We proposed a novel process comprising (1) feed preference tests and (2) progressive training programs. Through this process, artificial diets can become more suitable for pharaoh cuttlefish ( Sepia pharaonis ). Feed preference tests (based on vision, touch, and smell) revealed that pharaoh cuttlefish preferred rod-shaped feed to flat rod-shaped or ball-shaped feed, moist feed over dry feed (DF), and DF with agar coating to DF without agar coating. Without olfactory training, some cuttlefish refused to eat artificial feed and eventually died. Through progressive training programs (3- and 6-week programs), a survival rate of >80% was achieved. Although the artificial diets examined in this study resulted in a lower conversion ratio for S. pharaonis than for fresh shrimp, available artificial feed can potentially be adopted for cuttlefish aquaculture through the use of our progressive training program.
ISSN:2296-7745
2296-7745
DOI:10.3389/fmars.2022.765272