Sometimes, for economic reasons, in cases of self-regulation, industries opt for the least expensive choice possible, regardless of where products may come from, what the supply sources may be and level of food safety, etc. Sometimes, risks are taken. That is precisely why the agency exists. As I see it, just because we are dealing with domestic animals doesn't mean that we should let down our guard. But you are right in saying that there is no magic solution to all of this. Other contamination cases may occur, but I think that we can learn from these unfortunate incidents and perhaps adjust our own ways of doing things.
Evidence of meeting #63 for Agriculture and Agri-Food in the 39th Parliament, 1st Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was agency.
A recording is available from Parliament.