New Akoya Mother Oyster Specie Innovated.

[Bigwellpearls]

Akoya mother Oyster, “South Sci-No.1” .Species Series Revaluated.

Akoya oyster, “South Sciences No.1” species cultivated by South China Sea Marine Research House was revaluated by experts on December 6-7, 2012 at Bigwell Village, Xuwen, Guangdong.

Akoya oysters are major pearl ones for saltwater pearl culture in China, but mortality of them is extremely serious, besides environmental factors, another crucial reason is their inferior species quality and weak resilience. A team of science study led by
Mr. Maoxian He，a chief researcher, from South China Sea Marine Research House had carried out genetic innovations and superior species for Akoya mother oysters, South Sci-No.1 species had been cultivated, which is characterized by thick shell, stiff soft segments, high survival rate and fine shape of cultured pearls. Nowadays, the species of mother of pearl seed breeding, production and pearl culture have been accomplished in Zhanjiang. Nucleated oysters were about 530,000. Pearl rest of the mortality rate was 9.47%. down to 38.32% compared to the past. Superior pearl rate was 49.1%, higher 38.2% than native cultured mass, 20% of hybrid oyster groups.

 

[Cyril Roger Brossard]

Hi,

could you please clarify your statistical report?
1- is mortality 28.85% or 9.47%?
2- what is pearl rate? retention? if yes how many months after cultivation? is the percentage 87.3% or 49.1%?
3- are those haploid or diploid?

Thank you for the info, this could be interesting.

 

[pattye]

A healthier, stronger oyster is good news.

 

[Cyril Roger Brossard]

A healthier, stronger oyster is good news.

Pattye, I am not convinced that this is good news, genetically modified species tend to disrupt natural population, Japan got huge problems because of their advance genetic program on Akoya, they eventually were able to create dominant weak shells that affected their whole industry...
China being quite huge, I am wondering what will the outcome be.

 

[pattye]

Guess that should have been a question mark, not a period. I didn't realize Japan had already done that sort of program.

 

[Bigwellpearls]

Hi，

1-Mortality is 9.47%.
2- Pearl rate is 49.1%. Ten months after cultivation.The percentage is 49.1%.
3- Those are diploid.

 

[Cyril Roger Brossard]

Thanks for the feedback.
so it is 41.43% of rejection along the cycle?
pretty high no?

 

[Bigwellpearls]

It's 41.43% of rejection along the cycle.
Not pretty high. It's lower than native ones...

 

[Bigwellpearls]

It's 41.43% of rejection along the cycle.
Not pretty high. It's lower than native ones...

 

[Cyril Roger Brossard]

It's 41.43% of rejection along the cycle.
Not pretty high. It's lower than native ones...

Please kindly excuse my lack of knowledge, I am definitely not a specialist, this said, the mortality rate seemed good but I am not so sure about this retention being something really competitive.
Once again I am not familiar with the culture of Akoya in China.

Thank you for your feedback, this is extremely interesting.

 

[Ramona]

Just curious. How do you inoculate akoya oysters? I assume you use donor tissue along with the nucleus? Does the donor come from exactly the same species? Do you pre-treat our nuclei? Thanks.

 

[Cyril Roger Brossard]

Just curious. How do you inoculate akoya oysters? I assume you use donor tissue along with the nucleus? Does the donor come from exactly the same species? Do you pre-treat our nuclei? Thanks.

This is a question for Vigor He, right?

I have a feeling that they may use traditional methods hence what you described, many experiments have been done by Wada K. regarding inter-species operation (donor and mother), it includes a huge variety of pteria and pinctada used as donor for akoya operations.

it would nice to hear from the Op on this one.