How is SoyPass® manufactured?
Click here to learn more.

Composite Protein Comparisons

[Crude Protein & Bypass Protein]

Multiple, commercially produced bypass protein samples were collected and submitted for testing during the 3rd quarter of 2013. The results from the testing of these samples are shown in the following tables.

Composite Crude Protein Comparison (Dry matter basis)
% Crude Protein

Soybest® ~ 47.3

Amino Plus® ~ 51.7

SoyPlus® ~ 47.7

SoyPass® ~ 51.1

View Crude Protein Chart

Composite Bypass Protein Comparison (Expressed as a percent of crude protein)
Bypass Protein

Soybest® ~ 52.9

Amino Plus® ~ 66.6

SoyPlus® ~ 63.1

SoyPass® ~ 77.2

View Bypass Protein Chart
Download PDF

Samples were collected in the field and sent to Cumberland Analytical in Maryland for analysis. Samples were tested using a 16 hour in situ method. The testing method involves weighing samples, in the form they are received, into a 10 cm x 20 cm nitrogen free polyester bag with a pore size of 50 (+/-15) microns. The bags are heat sealed after filling and then soaked prior to incubation in the rumen of a cannulated cow. The cows used are high producing lactating cows in early to mid lactation fed a standard dairy diet balanced according to 2001 NRC recommendations. After incubation in the cannulated lactating cow, samples are frozen and then thawed and rinsed with cold water; samples are then fully dried in a convection drying oven and weighed. Standard disappearance calculations are used and coefficients of variation determined for each sample. Disappearance of protein is calculated by determining the grams of protein remaining after digestion and subtracting the quantity from the grams of protein placed into the in situ bag.

Soy Pass® is a product of Borregaard LignoTech SoyPLUS® is a product of West Central Cooperative, Ralston, Iowa Soy Best® is a product of Grain States Soya, West Point, Nebraska AminoPlus® is a product of Ag Processing, Omaha, Nebraska