Comparative regeneration of excised mantle tissue in one year and seven year old Indian pearl oyster, Pinctada fucata (Gould) grown under land-based culture system

Rao, G Syda and Pattnaik, Phalguni and Dash, Biswajit (2010) Comparative regeneration of excised mantle tissue in one year and seven year old Indian pearl oyster, Pinctada fucata (Gould) grown under land-based culture system. Indian Journal of Fisheries, 57 (1). pp. 39-43.

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    Abstract

    Excised mantle tissue (saibo) from the donor oyster is one of the important factors determining quality of cultured pearls. The present study was conducted to compare the process of regeneration of excised mantle tissue in one year and seven year old donor oysters, Pinctada fucata grown under land-based culture system. Menthol was used as relaxant prior to excision of mantle tissue, which was found to be effective at a concentration of 500 mg l-1. The mantle tissue was found to regenerate within 3 months post-excision in both one year as well as seven year old P. fucata, with 100% survival. On gross examination, the regenerated mantle tissue of the 1 year as well as the 7 year old oysters appeared similar to that of the normal mantle tissue of the control group. Histological analysis demonstrated complete regeneration of the mantle tissue and its associated structures in both the groups. This is the first description of in vivo mantle regeneration in 7 year old pearl oyster, P. fucata. The findings revealed that even aged donor oysters yielding good quality saibo can be recovered after mantle excision and could be further used as saibo donors for quality pearl production.

    Item Type: Article
    Uncontrolled Keywords: Excised mantle tissue; Indian Pearl oyster; Mantle regeneration; Pinctada fucata; Saibo
    Subjects: Molluscan Fisheries > Pearl oyster
    Divisions: CMFRI-Kochi > Marine Capture > Molluscan Fisheries
    Subject Area > CMFRI Brochures > CMFRI-Kochi > Marine Capture > Molluscan Fisheries
    CMFRI-Kochi > Marine Capture > Molluscan Fisheries
    Depositing User: Dr. V Mohan
    Date Deposited: 11 Aug 2010 06:05
    Last Modified: 09 Sep 2015 15:16
    URI: http://eprints.cmfri.org.in/id/eprint/2322

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