Farmers move their animals from one pasture to another during the summer months, so they can let the grass grow and make it into hay, so they have feed for the animals for the winter.
この場合、次のような言い方ができます。
ーFarmers move their animals from one pasture to another during the summer months, so they can let the grass grow and make it into hay, so they have feed for the animals for the winter.
「農夫は夏の間、牧草を育て干し草にし、冬の間の動物の餌にするため、動物を別の牧草地に移動させます」
pasture「牧草地」
hay「干し草」
feed「餌」
ご参考まで！
カナダ 
