By Scout Nelson
As corn silage harvest concludes in North Dakota, attention turns to its utilization in cattle diets. Zac Carlson of North Dakota State University Extension highlights the importance of corn silage as an
energy-rich feed option, beneficial for various cattle operations. Proper fermentation, typically complete in three weeks in well-packed, covered piles, ensures silage readiness for feeding.
Corn silage inclusion levels in diets vary, influenced by harvest tonnage and cattle inventory. A Northern Plains and Midwest survey revealed average dry matter corn silage inclusion rates between 17.1% and 22.2% for backgrounding diets and 5.4% to 11.4% for finishing diets. University of Minnesota research suggests that inclusion up to 40-60% of diet dry matter is still economical.
University of Nebraska research on finishing beef cattle diets with 15% or 45% dry matter corn silage showed that higher silage inclusion led to slightly poorer feed conversion, though feed intake remained constant. This suggests that higher corn silage diets may require longer feeding periods for similar carcass outcomes.
Karl Hoppe, NDSU Extension livestock systems specialist, advises evaluating the value of gain versus the cost of gain when considering replacing corn with corn silage, particularly in times of high corn prices.
Proper management of corn silage is crucial. Optimal harvest moisture levels range from 65% to 70%. Incorrect moisture levels can lead to poor fermentation and nutrient loss. James Rogers, NDSU Extension forage crops production specialist, emphasizes the importance of adequate packing and storage, including covering silage piles to reduce dry-matter losses.
Spoiled silage, characterized by surface mold or slime, should be avoided as it can negatively impact cattle’s dry-matter intake and nutrient digestibility. Thus, regular assessment and removal of spoiled portions during feedout are essential.
Photo Credit - gettyimages-dszc
Categories: North Dakota, Livestock, Beef Cattle, Dairy Cattle