Sesame Explanation

Sesame Explanation

Underlying BioZyme’s Feed Barometer is a software program, Sesame, which was designed by Dr. Normand St-Pierre and colleagues at the Ohio State University to evaluate multiple feed ingredients for a selected group of nutrients. In our Feed Barometer, we’ve chosen Crude Protein (CP), Net Energy for Gain (NEg) and effective fiber (eNDF) as the most important nutrients driving the feed ingredient value for beef cattle. Sesame uses multiple ingredients in the appraisal set to reflect current market conditions, thus avoiding the risk of basing evaluations on just a few ingredients. The results in Feed Barometer have been shown to be a robust assessment of the current value of feed ingredients.

To help explain the concept we can use the Peterson Method. The Peterson Method was a much simpler method of ingredient evaluation which used corn and soybean meal only as barometers of energy and protein. This method assumes corn and soybean meal are perfectly priced, and values only CP and energy:

For example, using the Peterson method:

Corn – $215/ton
NEg = 0.68 mcal/lb (as-fed basis)
In a ton of corn:

2000 lb * 0.68 mcal/lb = 1360 mcal NEg/ton of corn
($215/ton)/1360 mcal NEg/ton = $0.16/mcal of NEg

Now to estimate value of beet pulp

NEg = 0.35 mcal/lb (as-fed basis)

2000 lb * 0.35 mcal/lb = 700 mcal NEg/ton of beet pulp
700 mcal/ton * $0.16/mcal = $112/ton value based on energy alone