This My Forage System video explains best practices for producing high quality corn silage.
Here are the key points to remember:
Factors affecting silage quality:
Plant maturity: Dry matter is a key indicator of maturity. It is recommended to harvest maize when the dry matter is between 32 and 35%.
Cutting length: The cutting length should be adjusted according to the dry matter content. For silage with 32-35% dry matter, a 3/4 inch cut length is recommended.
Whether or not to use screening rollers: Screen rollers can help break up corn kernels, making it easier for cows to digest them. They are especially useful for maize harvested before it reaches optimum maturity.
Cutting height: Increasing the cutting height can increase dry matter yield, but it can also reduce silage quality. It is important to weigh the pros and cons before choosing a cutting height.
Silo compaction: Proper silo compaction is essential to prevent mold and bacteria from growing.
Storage: Silage must be covered with plastic to prevent the entry of air and water.
Impact of dry matter on silage quality:
Silage with too high dry matter content (over 40%) can lead to a decrease in milk production and health problems in cows.
Silage with too low dry matter content (less than 28%) can lead to acetic fermentation and loss of nutrients.
Recommendations for an optimal harvest:
Harvest maize when the dry matter is between 32 and 35%.
Adjust the cutting length according to the dry matter content.
Use screening rolls for maize harvested before it reaches optimum maturity.
Compact the silo properly.
Cover the silo with plastic to prevent air and water from entering.
Conclusion:
By following these best practices, producers can produce high-quality corn silage that will feed their cows and improve their milk production.