During the Winter rainfall period grass grows and farmers in the Overberg harvest it for silage. Some farmers bale the hay; others harvest the grass fresh, dump it between two ground walls; sprinkle salt on and compact with a tractor every layer and cover the top with plastic. Quite labour extensive but the end result is silage with a higher nutrient content. The cows on the Sanddrift farm of Jan Wessels in Napier, South Africa love it. They produce high quality milk. You may say that silage is a kind of transformation.