As you know I have travelled round a lot of the worlds carp breeding sites and I must say that some of the European breeders are very careful about what they do, after all its their livelihood and reputation that's on the line.
However Europe has got some nasty virus diseases etc and unfortunately a lot in the wild and that seems to be the source of a lot of fish destined for the UK angling market.
Legally fish can only be exported imported from fish farms that can prove they are Virus free and bio secure, Illegally they can be exported/imported from anywhere.
As for Israel, I am torn on this one- On one hand they are fantastic at breeding, rearing and general husbandry, but lets be honest their expertise came from the masters in what is now Germany, Poland, Czech rep and Slovakia.
Likewise their brood fish came from same self countries after the 2nd world war and from these through selective breeding they produced some fantastic strains of carp, some were exported to the UK and South Africa etc.
But on the other hand some of the breeders there are producing and exporting fish that are danger to the carp as a breed worldwide.
On the subject of Israeli exports, I knew one called Leila, well worth knowing but that another tale!!!!