The Quarterly Research Report is published by SEAFDEC Aquaculture Department for the research work of its researchers and their staff, and of its research staff on graduate or postgraduate studies. This includes Extended Abstracts, Notes and Study Updates.

Recent Submissions

  • Article

    In vitro effects of fungicides on the fungus Haliphthoros philippinensis 

    GD Lio-Po, MCL Baticados, CR Lavilla & MEG Sanvictores - SEAFDEC Aquaculture Department Quarterly Research Report, 1981 - Aquaculture Department, Southeast Asian Fisheries Development Center
    Pure cultures of Haliphthoros philippinensis, isolated from infected Penaeus monodon larvae, were exposed for 24 hours to varying concentrations of antifungal agents. The efficiency of each agent to inhibit sporulation and mycelial growth was measured. Effects on P. monodon eggs and larvae were also investigated. It is concluded that preliminary bioassay of larval tolerance to the suggested effective doses should always be made prior to prophylaxix or therapeutic applications.
  • Article

    Culture of grey mullet, Mugil cephalus, Linnaeus in brackishwater ponds at two stocking densities 

    DD Baliao, EM Rodriguez & DD Gerochi - SEAFDEC Aquaculture Department Quarterly Research Report, 1981 - Aquaculture Department, Southeast Asian Fisheries Development Center
    The culture potential of hatchery-produced grey mullet (Mugil cephalus , Linnaeus) stocked with average weight of 3.7 g and at 2,500 (treatment I) and 3,000 (treatment II) fingerlings/ha in six 350m brackishwater ponds following the lab-ab method of culture was studied.
  • Article

    Effects of increased stocking density and supplemental feeding on the production of milkfish fingerlings 

    CT Villegas & I Bombeo - SEAFDEC Aquaculture Department Quarterly Research Report, 1981 - Aquaculture Department, Southeast Asian Fisheries Development Center
    Experiments were conducted to determine the effects of increased stocking density and supplemental feeding on survival and growth of milkfish (Chanos chanos) fry to fingerling stage and also to evaluate the profitability of supplemental feeding in the milkfish fry nursery. Results showed that increased stocking density from 50 to 75 fry/m2 increased net income and is profitable. Survival was further increased through supplemental feeding with rice bran, which is cheap and easily obtainable.
  • Article

    Effect of varying crude protein levels on spawning frequency and growth of Sarotherodon niloticus breeders 

    CB Santiago, M Bañes-Aldaba & MA Laron - SEAFDEC Aquaculture Department Quarterly Research Report, 1981 - Aquaculture Department, Southeast Asian Fisheries Development Center
    Four-month-old S. niloticus breeders were fed with dry pellets containing 20-50% crude protein and the frequency of spawning involving removal of egg from the mouthbrooding females and growth were determined. When the diets contain high quality proteins from fish meal and soybean oil meal and the amounts of daily food allowance are at satiation level, the influence of increasing dietary crude protein on spawning frequency involving egg removal from the brooder and growth may not be significant.
  • Article

    Gum arabic, carrageenan of various types and sago palm starch as binders in prawn diets 

    FP Pascual & A Sumalangcay - SEAFDEC Aquaculture Department Quarterly Research Report, 1981 - Aquaculture Department, Southeast Asian Fisheries Development Center
    An experiment was undertaken in order to investigate the use of sago palm starch, gum arabic and carrageenans as binders in prawn diets. Water stability data are presented; EPT-2 carrageenan was found to be the best binder for both steamed and unsteamed pellets.

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