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Abstract

INFLUENCE OF INCREASED PHOTOPERIODS ON GROWTH, FEED CONSUMPTION AND SURVIVAL OF JUVENILE MIRROR CARP (Cyprinus carpio Linnaeus, 1758)

A growth trial was conducted in order to determine the effects of increased photoperiod regimes on growth performance, feed intake and survival of mirror carp (Cyprinus carpio Linnaeus,1758) in laboratory conditions for 90 days. Triplicate groups of fish (6 g mean body weight) were exposed to photoperiod regimes of 12 hours light:12 hours dark (12L:12D), increased photoperiods of 16 hours light:8 hours dark (16L:8D) and continuous light (24L:0D), respectively. At the end of the trial, growth was highest in the group subjected to continuous photoperiod, and appeared significantly different (p0.05) affected by photoperiod treatments. No mortality was observed in the continuous (24L:0D) photoperiod group, however, a mortality of about 3 % was recorded in the other two groups. For a better growth and lower food conversion rate, a continuous (24L:0D) photoperiod exposure is suggested best for rearing of juvenile carp


Author(s): Murat YT

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Abstracted/Indexed in

  • ProQuest
  • Chemical Abstracts Service (CAS)
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  • Google Scholar
  • Academic Journals Database
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  • The Global Impact Factor (GIF)
  • China National Knowledge Infrastructure (CNKI)
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  • Centre for Agriculture and Biosciences International (CABI)
  • Directory of Research Journal Indexing (DRJI)
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