• Food utilization and surfacing activity ofChanna striatus fry in relation to quality of food

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    • Keywords


      Channa striatus fry; quality of food; food utilization; surfacing activity

    • Abstract


      Effects of food items (mosquito larva, pupa, chironomous larva and chopped pieces of the fishLepidocephalichthyes thermalis) on food utilization and surfacing activity ofChanna striatus fry were studied. Test individuals fed on live food organisms surfaced 94–117% more frequently, consumed 23–119% more rations/day and, on an average, converted 33% more than those fed on pieces ofLepidocephalichthyes thermalis. Regardless of the quality of food,Channa striatus surfaced about 60 times/h before each meal and the frequency increased to 130 times/h 3–6h after the meal was offered and returned to the prefeeding level 18–21 h after the meal.

    • Author Affiliations


      K Sampath1 2 E Vivekanandan1 3

      1. School of Biological Sciences, Madurai Kamaraj University, Madurai - 625 021, India
      2. Department of Zoology, V.O.C. College, Tuticorin - 628 008, India
      3. Central Marine Fisheries Research Institute, Madras - 600 105, India
    • Dates


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