Cattle Inject Microorganisms In Soil

"Every time manure falls onto the ground, an enormous number of rumen microorganisms are carried with it and are incorporated into the soil by the animals trampling hooves"

Because these microorganisms are the same as the soil microbes responsible for plant decomposition,  this flood of rumen microorganisms boosts soil microorganism population at the very instant when passing herds' migration provides a surge of dead plant remains."
(Grass - Fed Cattle , Julius Ruechel)