The Basic Methods of Pearl Farming: A Layman's Manual - CTSA

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Basic Methods of Pearl Farmingthat new cycles of grafting and harvesting can take place regularly. After young pearl oysters havereached about 2 years of age, they are ready for grafting, which starts the development of a culturedpearl. After an inspection 40 days after grafting to evaluate the results, the pearl oysters are kept on thefarm for a further 12-24 months. The pearls are then harvested, and the pearl oysters that produce goodquality pearls are grafted a second time (Figure 6).Page 14
Determining if pearl farming is possible and will be profitableDetermining if pearl farming is possible andwill be profitable for youEstablishing and operating a pearl oyster farm requires a large investment of time and money over aperiod of several years. Additionally, the correct biological conditions must be present to allow pearloysters to grow well and produce high quality pearls. By conducting a feasibility study before startinga farm, you can determine how much it will cost to operate a farm and if the right conditions forgrowing pearl oysters are available. You can also roughly calculate how much you can expect to earnfrom pearl farming. The following is a list of factors that must be contemplated before investing in apearl farm:Costs of starting and operating a farmStarting a pearl farm and keeping it operating for a long enough period to obtain a steady return maytake as long as 4-5 years. Obtaining spat, growing them out to grafting size, grafting and culturing untilthe first harvest is a lengthy process. It must also be recognized that even with a good first harvest, theoriginal investment may not be entirely returned. This may not occur until the second or third harvest.The major types of expenses of starting and operating a farm are listed below and also in Appendix A.Major CostsCost of obtaining pearl oysters by one of three methods: Spat collection, purchase ofhatchery-produced spat or collection of adults from the wild.Equipment and supplies (see list at the end of the manual)Shipping costs for equipment and supplies and import taxesFarm structure (lines, rafts, underwater trestles, floats)Farm platformBoatsSCUBA gearLaborUtilities (e.g. electricity, water) and communications (e.g. telephone or radio)Gas and oil for boats or vehiclesReplacement costs for equipment and suppliesPage 15
Page 1 and 2: CTSA Publication No. 127The Basic M
Page 3 and 4: Table of ContentsTable of ContentsA
Page 5 and 6: AcknowledgmentsAcknowledgmentsThe a
Page 7 and 8: IntroductionIntroductionThe purpose
Page 9 and 10: A short history of pearl cultureA s
Page 11 and 12: Benefits of pearl cultureBenefits o
Page 13 and 14: Basic biology and ecologyBasic biol
Page 15 and 16: Basic biology and ecologyPearl oyst
Page 17: Overview of pearl farmingOverview o
Page 21 and 22: Determining if pearl farming is pos
Page 23 and 24: Determining if pearl farming is pos
Page 25 and 26: Selecting a siteSelecting a site fo
Page 27 and 28: How to setup the farmHow to setup t
Page 29 and 30: How to setup the farmA word about d
Page 31 and 32: How to setup the farm3. Underwater
Page 33 and 34: Preparing the pearl oysters for han
Page 35 and 36: Guidelines for keeping pearl oyster
Page 37 and 38: General farm managementGeneral farm
Page 39 and 40: Handling and transportHandling and
Page 41 and 42: Handling and transportTransporting
Page 43 and 44: Spat collectionSpat collectionSpat
Page 45 and 46: Spat collectionLeave about 13 in (3
Page 47 and 48: Spat collectionIn the southern hemi
Page 49 and 50: Spat collectionSpat are very sensit
Page 51 and 52: Disease and other causes of deathDi
Page 53 and 54: Disease and other causes of deathOt
Page 55 and 56: Nucleus implantation (grafting)Nucl
Page 57 and 58: Nucleus implantation (grafting)Pear
Page 59 and 60: Nucleus implantation (grafting)Post
Page 61 and 62: HarvestHarvestHarvest pearls when t
Page 63 and 64: Half-pearl (mabe) implantationHalf-
Page 65 and 66: Half-pearl (mabe) implantationFigur
Page 67 and 68: Selling pearls and pearl productsSe
Page 69 and 70:
Selling pearls and pearl productsOn
Page 71 and 72:
AppendixAppendixBudgets for small a
Page 73 and 74:
($48,145 - $38,713)AppendixTable 2.
Page 75 and 76:
Table 5. Costs (for operating farm
Page 77 and 78:
GlossaryGlossaryBaroque: irregularl
Page 79 and 80:
SuppliersSuppliers of aquaculture a
Page 81 and 82:
SuppliersAquatic Ecosystems Inc.176
Page 83 and 84:
BibliographyBibliographyGeorge, C.D
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The Basic Methods of Pearl Farming: A Layman's Manual - CTSA

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