A Japanese farmer has developed a new technology that processes fresh straw into silage that livestock loves. It is simple, fast, and saves labor. The specific approach is to place an extra large nylon film bag with a thickness of 0.15 centimeters on the rice field or on the threshing floor after harvesting; then, put fresh straw into the bag to make a haystack; finally, tie it tightly. Bags are not allowed to enter the air. After about one month, the fresh straw was fermented in a sealed plastic bag and became a well-tolerated livestock feed that could replace other silage feeds to livestock.