A metric used in livestock nutrition to estimate the energy content of a ration. It is calculated by summing the digestible protein, digestible carbohydrates, and digestible fat, with the fat multiplied by 2.25 to account for its higher energy density. While largely replaced by net energy systems in commercial dairy, it remains a standard benchmark for evaluating forage quality in beef and sheep operations.
Heard on the job
The lab report shows the alfalfa hay has a total digestible nutrients value of 62 percent, which is perfect for the stockers.
Also heard as
- TDN