Large fire near Glasgow Central station causes major rail disruption

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[-]GeneSmith1mo2712The language on Joh Hopkins website is being deliberately conservative. The reality is we have almost no data on eggs that have been frozen longer than 10 years, so they say 10 years becuase we don't have direct evidence for them being viable longer. What data we do have on eggs that have been frozen and then used after 4-8 years indicates time frozen has no effect on survival rates or fertilization rates. It would be very surprising to me if there's no impact on survival after 8 years, but at 10 years they suddenly start to degrade.

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马琳,专栏作家,多年从业经验,致力于为读者提供专业、客观的行业解读。

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