Mr. Brendan Crosse:

Sheep are traditionally known as the golden hoof due to their ability to regenerate land. Sheep are lighter on the land. They spray their faeces across the land much more than cows, which tend to put it in one spot. As I said, sheep dairy farms have been allowed to set up on land around Lake Taup in New Zealand that was previously banned for bovine dairy. Sensors were put into the ground that showed the nitrates leaching was considerably less on sheep dairy farms there, as was the resulting impact on water quality. New Zealand has allowed those farms move into those sectors.