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Bacterial depuration of the pacific oyster crassostrea gigas in new zealand


, : Bacterial depuration of the pacific oyster crassostrea gigas in new zealand. New Zealand Journal of Science 24(3-4): 253-262

Optimum parameters for depuration of the New Zealand grown Pacific oyster (C. gigas) were found to be a minimum flow of 2 1/2 cycles/h of sterilized water over the oysters and a loading factor of up to 3 oysters/l of water. Temperature and the level of the initial contamination (measured as fecal coliforms) were the major factors influencing the success of depuration. Maximum initial contamination levels for a successful depuration at different temperatures within the range 5.degree.-23.degree. C were established. For example, maximum initial contamination levels of 560, 3500 and 23,000 fecal coliforms/100 g of flesh could be depurated at temperatures of 7.degree., 14.degree. and 21.degree. C, respectively, after 24 h depuration. Examination of the rates of depuration indicates that the removal of bacteria follows 2 patterns. Recommendations for the depuration of the Pacific oyster grown under New Zealand conditions are listed.

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Other references

Ropes, J.W.; Yancey, R.M.M.rrill, A.S., 1967: The growth of juvenile surf clams at Chincoteague Inlet, Virginia. Proceedings of the National Shellfisheries Association, 57: 5

Brisman, M.H.; Fetell, M.R.; Post, K.D., 1993: Reversible dementia due to macroprolactinoma. Case report. Subfrontal tumors are an infrequent cause of dementia. Most of those that do cause dementia are meningiomas, and the symptoms may recede when the tumor is resected. A patient with a huge prolactinoma who came to medical attention because of dement...

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Sutcliffe, M.J.; Burgoyne, P.S., 1989: Analysis of the testes of H-Y negative XOSxrb mice suggests that the spermatogenesis gene (Spy) acts during the differentiation of the A spermatogonia. H-Y antigen negative XOSxrb mice, like their H-Y positive XOSxra counterparts, have testes; but, in contrast to XOSxra males, XOSxrb testes almost totally lack meiotic and postmeiotic stages of spermatogenesis. The quantitative analysis of the tes...

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Suryanarayanan T.S.; Muruganandam V.; Sampath G., 1987: Effect of congo red on hyphal morphogenesis and sporulation of botryodiplodia theobromae. The effect of Congo red, a dye which inhibits crystallization of cell wall polysaccharides, on hyphal differentiation and sporulation of Botryodiplodia theobromae Pat. was studied. The fungus has an obligate requirement for light to fruit in cultu...

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