TopGuard Rumen+
Better performance, naturally
Improve efficiency and sustainability
Koudijs TopGuard Rumen+ is the natural way to achieve healthier, more productive beef cattle helping our beef farmers to improve efficiency and sustainability. It is a proven combination of essential oils and yeast‑derived components to support rumen function, feed efficiency and health.
TopGuard Rumen+ was extensively tested and found to increase average daily gain and carcass weight during all growth stages of beef production.
How TopGuard Rumen+ Works
TopGuard Rumen+ combines essential oils and yeast cell‑wall fractions to:
- Modulate rumen fermentation
- Support microbial protein synthesis
- Improve fiber and starch digestibility
And it is part of our unique and highly effective Koudijs protein evaluation. It is a complementary feed, exclusive for our customers and tested during feedlot, extensive grazing and rose calf trials in collaboration with respected research institutes and trial farms.

Health Benefits in feedlots
Feedlot trials with high-concentrate diets showed that TopGuard Rumen+ helped reduce cases of liver abscesses and rumen inflammation. The graph shows the positive effect on 20 months old Nellore bulls during a 123 days trial using 1g/kg of dry matter intake at Instituto de Zootecnia.
What farmers can expect
- Helps increase ADG, and final body weight
- Supports feed efficiency
- Contributes to lower rumenitis and liver abscess incidence
- No observed increase in methane under trial conditions
Applicable to beef feedlot, extensive grazing and rose‑veal systems.