It may be practical to feed that beef algae instead of corn.
If you provide antibiotics to a cow they probably will fart less, but also will grow poorly and will not produce good milk. Cows need their gut bacteria to liberate the nutrients in their food and remain healthy.
Many macroalgae have antibiotics as chemical defenses so feeding cows with it is the same as feeding cows antibiotics. Its ability to eat cellulose will be destroyed.
Even worse, this algae they evolved to use chemical defenses, so they grow slowly and only in a narrow ring around the continents. If some thing grows slowly, to harvest it at large amounts will destroy the resource in no time. Is a totally non-scalable plan.
Feeding cows with Chondrus is a false solution. If we try this path I predict that we will soon hit a dead end.
Feeding cows with Spirulina would fall into a different situation and maybe could work (but Spirulina is contaminated and spoiled easily).
Feeding Cattle Seaweed Reduces Their Greenhouse Gas Emissions 82 Percent
https://caes.ucdavis.edu/news/feeding-cattle-seaweed-reduces...
Aaron Franklin has gone on about why and it’s because of the long cook times. BBQ is smoked and seasoned so I’m not sure the bland opinion matters.
Uh-huh. So bland, greasy meat slathered in cheap hot sauce?
Speaking as someone who has actually raised grass-fed beef.
Hereford are good but they're a proper "good old-fashioned roast beef Sunday dinner" breed.
We mostly had Charolais crosses, and Luing cattle which you don't really see outside Scotland. They're smallish but the meat is amazing.