Yes notanan- and we have learnt from it- and tightened the regs on feeds, with the EU. It took many many years before the EU agreed to buy our beef afterwards, because of it. And we still cannot give blood in the EU and EEA because of it.
And this is why we MUST NOT drop standards on animal feeds, husbandry, antibiotics and hormones, and vile live transport now beyond the EU, to Saudi Arabia, etc- days and week on ships without restraints- animals falling and breaking legs, dying and left to rot in their own sick, urine and sh*t...
And why the EU is perfectly reasonable in insisting there are strict checks between NI and UK, or NI and EU - because they do not want this dangerous and cruel entering the EU and their food chains- and being in competition with meat and goods produced more expensively due to higher standards and workers' rights.