Ruval plus in Practice: Trial Results in Dairy Cattle

P. van der Kooij Groep B.V. has been working intensively with Jodoco NV for many years to market innovative animal feed products in the Netherlands. Thanks to this collaboration, new feed materials are not only introduced but also extensively tested in practice.

Within this process, Mark van de Ende, feed advisor at Van der Kooij Groep, plays an important role. With years of experience in the animal feed industry and in-depth knowledge of rations, he guides dairy farmers in the optimal use of feed materials. One of the products that receives a lot of attention is Ruval and Ruval Plus.

What is Ruval?

Ruval is a palatable, liquid, and protein-rich feed material that is mainly used as a protein supplement in TMR rations. Because the product has a sticky structure, it mixes well into the ration, improving feed intake.

Dairy farmers who already work with Ruval experience clear benefits: the feed is better absorbed, the rations are more stable, and the animals produce more milk. In practice, Ruval also proves to be easy to integrate into existing feeding strategies, without major adjustments.

Ruval has now been extensively tested and demonstrably delivers better results in rations for dairy cattle.

Key benefits of Ruval:

High protein content for optimal supplementation of the ration
Liquid and sticky → ensures better mixing in TMR
Positive practical experiences with various dairy farmers

What makes Ruval Plus different?

In addition to the basic product Ruval, Ruval Plus is also available. This product contains the same protein-rich base but is enriched with organic acids. This addition makes the product ideally suited as a natural heating inhibitor.

Due to the fresh taste and smell, the cattle also absorb the product even better. In addition, Ruval Plus contains betaine, a substance that supports rumen fermentation and thus makes a direct contribution to higher milk production. It is important to emphasize that Ruval products do not contain urea, making them safe and responsible to incorporate into the ration.

The trial with Ruval Plus in Belgium

To test the effect of Ruval Plus under practical conditions, Van der Kooij Groep and Jodoco, together with a dairy farmer in Belgium, started a long-term trial. During this trial, a clear distinction was made between two groups of cows:

One group received the standard TMR ration without additives.
The other group received the same ration but supplemented with Ruval Plus.

By keeping both groups separate, each with its own milking parlor, the results could be carefully and reliably compared. The trial period lasted several months, so that not only short-term effects but also longer-term performance could be examined.

Results from the field

The results of the trial clearly show that the use of Ruval Plus has added value. The cows that received a ration with Ruval Plus showed improvements in rumen function, higher feed intake, and increasing milk production.

These results confirm the theory: through the combination of extra protein, organic acids, and betaine, Ruval Plus contributes to a better utilization of the ration and higher efficiency in dairy farming.

📄 Click here to view the full report.

Conclusion: Ruval Plus makes a difference

The field trial shows that Ruval Plus is more than just a protein source. Thanks to the added organic acids and the fresh taste, the product has a dual effect: it prevents heating and stimulates absorption. In combination with the improved rumen fermentation, this leads to higher milk production and healthier animals.

For dairy farmers who want to optimize their ration and improve their results, Ruval Plus is a proven choice.

Want to know more?

Would you like to know more about the effect of Ruval and Ruval Plus or the results of our field trials? Our advisors at P. van der Kooij Groep will be happy to tell you more and work with you to see how these feed materials best fit within your business operations.