silversides contain thiaminase?

[buraccha]

I recently read about fish food company that sell silversides that aren't using real "silversides" (Menidia menidia) and using other similar fish to the real silversides and they contain thiaminase.

I recently bought V2O IQF silversides and i would like to know if they are real silversides and if they dont have thiaminase.

thank you.

 

[buraccha]

I recently bought V2O IQF silversides and i would like to know if they are real silversides and if they dont have thiaminase.

thank you.

Anyone know a quick answer. I sent a message to v2o and i had no answers.
So i would like to know which company uses silversides that doesnt contain thiaminase.