HIGH ENERGY FEED FATS

High-producing dairy cows require large amounts of energy to sustain milk production. However, adding conventional fats directly to the diet can interfere with the microbial processes in the rumen.

 

Rumen-protected fats are designed to pass through the rumen without disrupting these microorganisms, ensuring that fiber digestion remains efficient while the fat is absorbed later in the digestive tract.

 

This allows dairy cows to benefit from the high energy content of fats without compromising rumen function.

Why rumen protection matters?

 

The rumen contains microorganisms that break down plant fibers such as cellulose and hemicellulose.

Free fatty acids – especially unsaturated ones – can inhibit these fiber-digesting microbes. When unprotected fats coat feed particles, microbial enzymes cannot access the fibers effectively. Rumen-protected fats prevent this interaction and help maintain:

 

  • Efficient fiber digestion
  • Stable feed intake
  • Consistent milk production

 

 

Preventing milk fat depression (MFD)

 

When cows consume large amounts of unprotected unsaturated fat, rumen microbes attempt to modify these fatty acids through biohydrogenation.

Under certain conditions, this process can produce intermediate compounds such as trans-10, cis-12 CLA, which can inhibit milk fat synthesis in the mammary gland.

Rumen-protected fats reduce the formation of these intermediates and help maintain stable milk fat levels in high-producing cows.

Energy density and metabolic efficiency

Dairy cows in early lactation often experience negative energy balance, as their milk production exceeds their ability to consume sufficient feed.

Fat is a highly concentrated energy source:

 

  • Fat: approx. 37–39 MJ/kg
  • Carbohydrates: approx. 17 MJ/kg

 

When delivered in a rumen-protected form, the fat bypasses rumen fermentation and is absorbed in the small intestine as fatty acids. This provides efficient energy for milk production and body condition recovery.

Two technologies for rumen protection

Supporting efficient dairy production

Rumen-protected fats allow dairy nutritionists to increase dietary energy levels without compromising rumen stability. By combining high energy density with controlled digestion, these technologies help support:

 

  • Efficient rumen function
  • Stable milk fat production
  • Improved feed efficiency
  • Reliable energy supply for high-yielding dairy cows

Want to find out more?

 

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