herd of stud beef cows and bulls grazing on green grass in australia, breeds include speckled park, murray grey, angus and brangus

agricultural agriculture agronomy american angus animal australian beef carbon cattle cow cows ecology environment european farm farming field food future grass grassland graze grazing green health herd hereford holistic impact integration livestock matter meadow microorganisms native natural organic park pasture permaculture recycle regenerative renewable sequestration soil speckle sustainability sustainable technology