Basically none. We will continue to dose cattle with antibiotics as long as there is additional gain from doing so, regardless of how profitable cattle without antibiotics are.
Or until legislation forces big AG to stop doing it for the sake of everyone else.
So you're saying if farming antibiotic free cattle is twice as profitable as today, and farming antibiotic cattle is loss making, farmers are still going to farm antibiotic cattle? You know farms are businesses, they are motivated by money.
No, what they are saying is that cows fed with seaweed AND antibiotics are still more profitable than cows fed only with seaweed.