No.1 Rumen Protected Lysine AjiPro®-L

Ajinomoto Health & Nutrition North America, Inc. is the front-runner in amino acid nutritional research and technical expertise in North America. The Solutions & Ingredients Division manufactures and distributes cost-effective, feed-grade rumen protected lysine for ruminants. AjiPro®-L is a research proven lysine source that can play a significant role in increasing a feed’s efficacy compared to the cost of feed.

Compare your current milk efficiency with maximum potential milk efficiency.

The science of milk efficiency


Our competitive advantage

AjiPro®-L is the highest quality rumen protected lysine in the market, verified by universities and Miner Institute studies. AjiPro®-L’s quality features include:

  • 80% rumen bypass rate.
  • 80% intestinal digestibility.
  • 25% w/w MP-Lysine.
  • Stable in total mixed rations for up to 24 hours.
  • Most researched rumen protected lysine product.
  • Manufactured by Ajinomoto with over 100 years of history in amino acid nutrition.


Unique rumen protection technology

During a cow’s rumination process, important amino acids, such as lysine, degrade before they can be digested in the small intestine. As a result, dairy cows tend to experience lysine deficiency, preventing them from producing milk at their fullest capacity. AjiPro®-L is protected from rumen degradation by utilizing a unique combination of matrix and coating protection technologies, allowing for maximum lysine absorption in dairy cow’s small intestine:

  • A matrix of hydrogenated vegetable oil provides structural strength and contains the L-Lysine.
  • A 100 μm hydrophobic exterior layer provides protection from microbial breakdown in the rumen.

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Optimize milk efficiency and profitability with AjiPro®-L

Today, dairy farmers are looking for simpler and more economical ways to improve the nutrition of dairy cows. A diet with properly balanced amino acids can maximize milk production. Unfortunately, most diets are deficient in lysine, an essential amino acid for dairy cows. This usually results from using ingredients in feed that are deficient in lysine. When dairy cows fail to receive the sufficient lysine required for maximum milk production in the diet, their milk production levels and milk protein yield fall short.

Calculating milk production profitability

It is important to monitor ration cost, especially when milk prices drop. However, what’s more important is the true ration profitability, like income over feed cost. There are many factors to consider in assessing overall profitability. Milk efficiency offers a good indicator of ration profitability by comparing feed to milk yield. Milk efficiency describes a dairy cow’s performance by comparing the cow’s total milk yield to the amount of dry matter that it consumes. Milk efficiency is equal to milk yield divided by dry matter intake (DMI): Milk efficiency is closely related to the energy density of the ration. Depending on the net energy of diet of your ration, you should expect a certain level of milk efficiency, per the chart below:

Chart pertains to 100 lbs milk, 3.7% fat, 3.5% protein


Calculate your potential milk efficiency

The milk efficiency calculator allows you to see the gap between your cow’s current performance and maximum potential performance. While cow comfort, management practices, and metabolic diseases can reduce milk production, a properly balanced ration for metabolizable amino acids can help you achieve your cow’s maximum milk efficiency. Compare your current milk efficiency with maximum potential milk efficiency by entering data in the calculator.   Try the milk efficiency calculator