Chin-Long KY
Ifremer, UMR 241 Ecosystèmes Insulaires Oceaniens (EIO), Labex Corail, Centre du Pacifique,
BP 49, 98719 Taravao, Tahiti
French Polynesia
Research Article
Shell Growth Performance of Hatchery Produced Pinctada margaritifera: Family Effect and Relation with Cultured Pearl Weight
Author(s): Chin-Long KY and Gilles Le Moullac
Chin-Long KY and Gilles Le Moullac
Size is the most important and valuable quality trait of cultured pearls produced by the black-lipped pearl oyster, Pinctada margaritifera. In French Polynesia, several breeding programmes have been started that aim to improve this size trait, which is highly related to shell growth rate in both recipient and donor oysters. Shell growth rate dictates the time of grafting, size of implanted nuclei and bio-mineralisation potential of the mantle and pearl sac. We assessed shell growth rate through routine digital shell biometric analysis on 22 hatchery families produced between 2005 and 2008. These included full-sib families and half-sib families derived from polyandry (one dam crossed with two or more sires). Results showed that: 1) a significant family effect was recorded for growth performance, analysed according to the Von Bertalanffy model, 2) a significant male effect was .. View More»
DOI:
10.4172/2155-9546.1000480