Bypass Rapeseed MP

Rumen-Protected Rapeseed Meal for Dairy and Beef

Bypass Rapeseed MP is a rumen-protected rapeseed meal developed for high-producing dairy cows, particularly during early lactation, and for beef cattle diets requiring additional digestible protein. A controlled Maillard treatment reduces ruminal protein degradation while maintaining high post-ruminal digestibility, supporting precise metabolizable protein formulation.

Independent evaluation by specialised research institutes established 80.64% rumen stability (BRE) and 90.14% post-ruminal protein digestibility (DVBE). With 326 g/kg crude protein, 279 g/kg undegraded dietary protein (UDP), 276 g/kg DVE91 and 293 g/kg PDIE, Bypass Rapeseed MP provides a source of digestible protected protein.

Protein Quality Beyond Crude Protein

In ruminant nutrition, protein value depends on more than crude protein concentration. Rumen-degradable protein supports microbial protein synthesis, while rumen-undegradable protein contributes additional digestible amino acids after passage through the rumen. Both fractions must be balanced with fermentable energy and the animal's requirements.

Bypass Rapeseed MP reduces the susceptibility of rapeseed protein to microbial degradation, increasing its potential contribution to post-ruminal protein supply. This can help nutritionists meet metabolizable protein requirements without relying exclusively on higher dietary crude protein concentrations.

80.64% Rumen Stability: Measured Protein Protection

Bypass Rapeseed MP has a rumen stability (BRE) value of 80.64%, derived from an extensive in-situ/in-sacco rumen incubation protocol extending to 336 hours, conducted by an independent research institute using rumen-fistulated cows.

The 336-hour period describes the experimental protocol, not the duration of protein retention in the rumen. It does not mean that 80.64% of the protein remained undegraded after 336 hours. BRE must also be distinguished from calculated RUP or UDP values, which depend on degradation kinetics, passage assumptions and the protein evaluation system.

These measurements demonstrate substantial rumen protection and support the ingredient's nutritional characterisation for professional ration formulation.

90.14% Post-Ruminal Protein Digestibility

Rumen protection alone is insufficient if the protected protein becomes poorly digestible. Excessive treatment can reduce ruminal degradation while compromising post-ruminal protein and amino acid availability.

Bypass Rapeseed MP achieved 90.14% post-ruminal protein digestibility (DVBE), measured using the mobile nylon bag technique in cows fitted with duodenal cannulas.

This demonstrates high digestibility of the evaluated rumen-undegraded protein fraction. Together, the BRE and DVBE measurements confirm that substantial rumen protection is combined with high post-ruminal digestibility.

DVE91, PDIE and UDP for Precision Formulation

Bypass Rapeseed MP provides 279 g/kg UDP, 276 g/kg DVE91, 270 g/kg WDVE, 293 g/kg PDIE and 282 g/kg PDIN. These values support professional protein formulation across different nutritional evaluation systems.

Its OEB91 value of -13 g/kg reflects the ingredient's calculated contribution to rumen nitrogen balance within the Dutch DVE/OEB system. This provides flexibility when balancing rumen-degradable nitrogen and digestible protein supply in the complete ration.

UDP, DVE91, WDVE, PDIE and PDIN are system-specific values and should not be interpreted as interchangeable measurements.

Controlled Maillard Protection

Bypass Rapeseed MP is produced through a controlled Maillard-based treatment using reducing sugars derived from inverted sugars. The process reduces the susceptibility of rapeseed protein to ruminal microbial degradation without relying on added formaldehyde or other chemical protein-protection agents.

Careful process control is essential. Insufficient treatment may provide limited rumen protection, while excessive treatment can reduce post-ruminal digestibility. The combination of 80.64% BRE and 90.14% DVBE demonstrates the measured balance between protection and digestibility.

Applications in Dairy and Beef Nutrition

High-Producing Dairy Cows and Early Lactation

High-producing dairy cows have elevated requirements for metabolizable protein and essential amino acids. During early lactation, dry matter intake may lag behind rapidly increasing nutrient demands.

Bypass Rapeseed MP can contribute additional digestible undegraded dietary protein when calculated metabolizable protein or amino acid supply is limiting. Its inclusion should be evaluated alongside microbial protein synthesis, energy supply and the complete ration.

Growing and Finishing Beef Cattle

In growing beef cattle, metabolizable protein requirements depend on body weight, growth rate and developmental stage. Bypass Rapeseed MP can complement microbial protein supply when additional digestible dietary protein is required.

Compound Feeds and Protein Concentrates

Bypass Rapeseed MP can be incorporated into compound feeds, dairy concentrates, complementary feeds and customised ruminant protein formulations. Inclusion rates should be established according to animal requirements, dry matter intake, complete-ration composition and the selected protein evaluation system.

Why Formulate with Bypass Rapeseed MP?

• 80.64% rumen stability (BRE) demonstrates substantial protein protection.
• 90.14% post-ruminal digestibility (DVBE) confirms high digestibility of protected protein.
• 279 g/kg UDP, 276 g/kg DVE91 and 293 g/kg PDIE support protein formulation.
• OEB91 of -13 g/kg supports ration-level rumen nitrogen balancing.
• Supports metabolizable protein supply in high-producing dairy cows, early lactation and beef cattle.

Evidence-Based Protein Formulation

Bypass Rapeseed MP combines substantial rumen protection with high post-ruminal protein digestibility. Its independently evaluated nutritional characteristics provide a technical basis for incorporating digestible protected rapeseed protein into dairy and beef rations where additional metabolizable protein is required.