Results 21 to 30 of about 1,122 (175)
Sterols of the pearl-oyster. [PDF]
The sterols of pearl-oyster Pinctada martensi were isolated by preparative HPLC, and identi-fied by GC-MS and IR. The structures of 21 sterols were established. And the sterol composi-tion was determined by using GC. The major components were Δ5-sterols.
openaire +3 more sources
Effects of sea depths and sizes of winged pearl oysters (Pteria penguin) on pearl culture [PDF]
Environmental aspects and biology of pearl oysters are the important conditions affecting pearl production. In order to obtain commercially valuable pearl from winged pearl oysters, Pteria penguin, three sizes (shell-length) of the oysters: small (130 ...
Inthonjaroen, N. +2 more
doaj
Influence of water temperature and food on the last stages of cultured pearl mineralization from the black-lip pearl oyster Pinctada margaritifera. [PDF]
Environmental parameters, such as food level and water temperature, have been shown to be major factors influencing pearl oyster shell growth and molecular mechanisms involved in this biomineralization process.
Oïhana Latchere +7 more
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Kinds of nucleus for effective pearl cultivation of the pearl oysters, Pinctada fucata [PDF]
Seeding is the most important aspect of pearl cultivation, and appropriate nucleus can determine the quality of a pearl : nacre secretion and accumulation around the nucleus.
Kanjanachatree, K. +2 more
doaj
Low energy cost for cultured pearl formation in grafted chimeric Pinctada margaritifera
The pearl oyster is one of the rare animal models that support two distinct genomes, through the surgical graft process operated for culture pearl production.
Gilles Le Moullac +2 more
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Fiji’s cultured pearl sector relies on wild collected oysters (Pinctada margaritifera) for culture stock. Most oysters are collected by community-based spat collection enterprises but there is little information on the optimal duration of spat collector ...
Charlene Erasito +3 more
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Pearl oyster Pinctada fucata martensii is widely recognized for biomineralization and has been cultured for high-quality marine pearl production. To ascertain how dietary vitamin D3 (VD3) levels affect the features of pearl production by P. f.
Chuangye Yang +19 more
doaj +1 more source
An OD-Pearl for the EE-Oyster [PDF]
Explaining the basics of Lowlands-SocioTechnical Systems Design (L-STSD) to the Enterprise Engineering community is the first goal of this contribution in order to show how it fits with EE. Then, a first attempt is made to link L-STSD to basic EE insights gained so far.
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Shell colors and microstructures of four pearl oyster species in the South China Sea
Wild marine pearl oyster shells have rich colors, and the color and gloss of pearls cultivated by pearl oysters are closely related to the pearl layer color of the mantle.
Zhenghua Deng +7 more
doaj +1 more source
This study describes reproductive aspects of the Pinctada capensis (pearl oyster) and Saccostrea cucullata (rocky shore oyster) in Inhaca Island, southern Mozambique (Western Indian Ocean).
Mizeque Mafambissa +5 more
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