How do we get fertizer from manure?

[DickieKnee]

so Cows, sheep, goats, horses etc produce fertilizer which is great manure. But this is all from them eating grass. So the nutrients in eating grass keep them healthy but the bonus is their manure fertilizes the grass.

How is this circular habit sustainable?

 

[MP_]

so Cows, sheep, goats, horses etc produce fertilizer which is great manure. But this is all from them eating grass. So the nutrients in eating grass keep them healthy but the bonus is their manure fertilizes the grass.

How is this circular habit sustainable?

It’s sustainable as long as they are being fed.