It says mortality of over 50% on arrival…..sounds like bad handling to prawnmaster. Removing dead is standard practice. Confused with cull?
One does not cull shrimp – a fishy term.
If system is biosecure then no threat of this stress provoked problem reaching outside facility so no need to cull. Just continue growout. Standing at 12% survival currently.
With commercial logistics, systems, feed review.
Three things to note.
So much for biosecurity, OIE and buying from only approved US sources.
Prawnmaster has continuely argued that the US SPF program for vannamei is compromised. Vannamei is not even endemic to that country.
Secondly – why the word “cull”? If there is a risk to a local population then nothing less of total destruction with a zero discharge policy should be in place – but if that were case it would show biosecurity lapse in system. A cull of shrimp in a system is removing dead ones. So with over 50% dying on arrival not really a cull more a clean up is my guess.
Sounds like they need some Prawnmaster advice….
Proper handling and correct feed should do it….and, buying vannamei seed from Europe in future or use 12% survivors as base line for breeding?