Detection of potential nervous necrosis virus (NNV) carriers.
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aBirds commonly seen in grouper fish farms are Egretta garzetta (little egret), Nycticorax nycticorax (black-crowned night heron), and Passer montanus (tree sparrow).bBrine shrimps used as a feed for larvae.cCommon water fleas.d(number of positive/number of negative); +, NNV positive; −, NNV negative.
创建时间：
2015-12-02
