The stomach capacity of a 1000 pound cow is not large enough to consume and digest this much low quality forage. This is an extreme example and is used to illustrate the importance of intake. Protein is an expensive supplement and can affect profits if not properly fed. Compare cost of supplemental protein based on the amount of available protein supplied. Anhydrous ammonia treatment can be used to increase the digestibility, intake and protein content of these low quality forages.
Energy is often the most limiting factor to animal performance on forages.
The most common source of supplemental energy is corn. Current corn prices have producers looking for other sources of energy such as the by-product feeds, including corn gluten, wheat midds, and soyhulls. Unfortunately, prices for these products have followed the increased corn prices and may not be the bargain they once were. Inventory quality and quantity of feed on hand and make comparisons to what will be needed. If stockpiled forage is available, extend its use through limited access.