date:Jun 19, 2019
in the short term; we don't know if it's effective in the long term, Hristov explained. The microbes in cows' rumens can adapt to a lot of things. There is a long history of feed additives that the microbes adapt to and effectiveness disappears. Whether it is with beef or dairy cows, long-term studies are needed to see if compounds in the seaweed continue to disrupt the microbes' ability to make methane.
There are also questions about the stability over time of the active ingredients -- bromof