SEAFDEC/AQDINSTITUTIONAL REPOSITORY
    • Login
    View Item 
    •   SEAFDEC/AQD Institutional Repository Home
    • 03 SEAFDEC/AQD External Publications
    • Journal Articles, Conference Papers and Book Chapters by SEAFDEC Staff
    • Conference Proceedings
    • View Item
    •   SEAFDEC/AQD Institutional Repository Home
    • 03 SEAFDEC/AQD External Publications
    • Journal Articles, Conference Papers and Book Chapters by SEAFDEC Staff
    • Conference Proceedings
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Recent developments in design and management of small-scale hatchery for Penaeus monodon in the Philippines

    • Global styles
    • APA
    • Elsevier - Harvard
    • Vancouver
    • MLA
    • Help
    Thumbnail
    View/Open
    Request a copy
    Date
    1982
    Author
    Gabasa Jr., Porfirio G.
    Page views
    1,644
    Metadata
    Show full item record
    
    Share 
     
    Abstract
    It is a common belief that the zoea of Penaeus monodon are completely filter feeders. Thus, diatoms like chaetoceros and phytoflagellates are maintained at high feeding densities as much as 80 000 cells/ml in hatchery tanks during the zoeal states of the P.monodon. This feeding scheme often results in the reddening of the larvae followed by weakening, loss of appetite and eventual mass mortality.

    It was found out recently that zoea larvae are not completely filter feeders. It was observed as early as Zoae 1, the mouth parts of the larvae are already functional and can eat food particles as big as Artimeia and Brachionus.

    Based on this observation, a new feeding scheme was developed. Boiled egg yolk is fed to the larvae at 15-22 particles (as big as Brachionus) per ml from Zoea 2 to Mysis 3 stages. Tetraselmis is given from Zoea 1 to Mysis 3 stages at a low density level of 5 000 cells/ml. Artemia is also fed at 10-15 individuals/ml from Mysis 1 to Postlarvae 5. If Tetraselmis is not available, bread yeast is given from Zoea 1 to 3 at 0.1-03 g/ton as supplementery feed. With this new feeding scheme, the hatchery producers have been greatly simplified considering that the most difficult and tedious part in larval rearing is the maintenance of algal food especially diatoms.

    This feeding scheme was tested in a private hatchery in Bataan, Aklan province by the SEAFDEC Aquaculture Department from July to October 1981. All 44 runs were successful, yielding survival rates ranging from 22 to 75 percent and an average rate of 52.9 percent.

    The hatchery system was further simplified when experiments at the Bataan Substation of the SEAFDEC AQD revealed that as high as 60 percent survival can be attained with minimal aeration. Instead of centralized aeration system using compressors or blowers, portable aquarium-type aerators (5-watt) could be use thus minimizing energy consumption.

    Based on these developments, a new model for a small-scale hatchery system is proposed.

    based
    URI
    http://hdl.handle.net/10862/514
    Suggested Citation
    Gabasa Jr., P. G. (1982). Recent developments in design and management of small-scale hatchery for Penaeus monodon in the Philippines. In Working Party on Small-Scale Shrimp/Prawn Hatcheries in Southeast Asia, Semarang, Central Java, Indonesia, 16-21 November 1981 (Vol. II. Technical Report, pp. 77–86). Manila, Philippines: South China Sea Fisheries Development and Coordinating Programme.
    Type
    Conference paper
    Subject
    Aquaculture systems; Artificial feeding; Diets; Food organisms; Hatcheries; Shrimp culture; Small scale aquaculture; Penaeus monodon; Philippines
    Collections
    • Conference Proceedings [281]


    © SEAFDEC/AQD  2021
    Contact Us | Send Feedback
     

     

    Browse

    All of SAIRCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsKeywordsThis CollectionBy Issue DateAuthorsTitlesSubjectsKeywords

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    © SEAFDEC/AQD  2021
    Contact Us | Send Feedback
     

     

    Export citations

    Export the current results of the search query as a citation list. Select one of the available citation styles, or add a new one using the "Citations format" option present in the "My account" section.

    The list of citations that can be exported is limited to items.

    Export citations

    Export the current item as a citation. Select one of the available citation styles, or add a new one using the "Citations format" option present in the "My account" section.

    Export Citations

    EXTERNAL LINKS DISCLAIMER

    This link is being provided as a convenience and for informational purposes only. SEAFDEC/AQD bears no responsibility for the accuracy, legality or content of the external site or for that of subsequent links. Contact the external site for answers to questions regarding its content.

    If you come across any external links that don't work, we would be grateful if you could report them to the repository administrators.

    Click DOWNLOAD to open/view the file. Request a copy in case the link we provided don't work.

    Download

    DOCUMENT REQUEST NOT AVAILABLE

    This publication is still available (in PRINT) and for sale at AQD bookstore. The library is currently restricted to send PDF of publications that are still for sale.

    You may contact bookstore@seafdec.org.ph or visit AQD bookstore for orders.

    FILE UNDER EMBARGO

    This file associated with this publication is currently under embargo. This will be available for download after the embargo date.