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  • 03 SEAFDEC/AQD External Publications
  • Journal Articles, Conference Papers and Book Chapters by SEAFDEC Staff
  • Conference Proceedings
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Photoperiod effects on feeding, food conversion, growth, and survival of abalone (Haliotis asinina Linne) during nursery rearing

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日付
2001
著者
Fermin, Armando C.
Buen Shela Mae A.
Page views
2,552
ASFA keyword
aquatic molluscs ASFA
abalone culture ASFA
light effects
feeding ASFA
rearing techniques ASFA
juveniles ASFA
AGROVOC keyword
Food conversion
Philippines AGROVOC
abalones AGROVOC
Haliotis asinina AGROVOC
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Juveniles of Haliotis asinina, 10 mm shell length were subjected to four photoperiodic regimes namely, 6L:18D, OL:24D, diffused 12:12D, and ambient light (12L:12D) serving as control. Juveniles were fed fresh seaweed, Gracilariopsis bailinae, in excess amounts throughout the experiment. At the end of a 105-day experiment, juveniles held under ambient photoperiod were significantly bigger and had higher average daily growth rate than the rest of the treatments. Feed conversion efficiency was higher at ambient light than at other photoperiodic regimes. Daily feeding rates at 65-day culture period were similar for all treatments; however towards the end of culture period, feeding rate of abalone at ambient light was lowest compared to the rest of the treatments. Percent survival was significantly higher in animals at ambient light and at 6L: 18D with 99% and 97% respectively, than at other photoperiodic regimes.
URI
http://hdl.handle.net/10862/462
Type
Conference paper
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  • Conference Proceedings [291]

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