You can think of it as similar to a human taking a cheap charcoal tablet with their food to reduce flatulance. They will not take such a tablet until they are aware they have gastritis. When enough pressure is applied the solution will be implemented.
Only a small part of the animals feed needs to be seaweed and thankfully it is one of the easiest and fastest growing organisms on the planet. So it’s extremely cheap for the industry to adopt the solution when compared to facing losses related to carbon taxes and loss of market share.
