• Skip to main content
  • Skip to header right navigation
  • Skip to site footer
  • Careers
  • Contact Us
Logo for Ralco featuring a stylized green letter "R" with a leaf inside a yellow circle, next to the text "RALCO Nature Elevated by Science" in green letters.

Ralco Agriculture

  • Home
  • About
    • History
    • News
    • Sustainability
  • Our Science
    • Microfused® Essential Oils
    • Actifibe®
    • Microbial Catalyst®
  • Products
        • All Products
        • Swine
          • Nursery / Grow-Finish Health
          • Gestation / Lactation Health
          • Nursery Nutrition
          • Grow-Finish Nutrition
          • Specific Health Challenges
        • Poultry
        • Beef
          • Cow/Calf Health
          • Cow/Calf Nutrition
          • Feedlot Health
          • Feedlot Nutrition
        • Dairy
          • Calf
          • Cow
        • Crops & Forage
          • Crops
          • Forage
        • More Solutions
          • Aquaculture
          • Equine
          • Feed Mill
          • Organic
          • Show Animals
          • Small Ruminants
  • Resources
    • FAQs
    • Videos
    • Podcast
    • Ralco Reader Blog
  • Shop
  • Careers
  • Contact Us
Search Search
Search
A white plastic jug labeled "Regano 500 OMRI Listed" with images of a piglet, lamb, chick, and cow is a natural feed additive for livestock and poultry, produced by Ralco.

Regano 500 OMRI Listed

25 lb. Jug | 35 lb. Bag

Regano® 500 is a natural feed additive approved for organic production, formulated to support specific health challenges and maintain animal health during periods of stress.

What’s Inside:

  • Microfused® Essential Oils Technology
  • Description

Description

Information By Species

Poultry

Benefits

Helps maintain animal health during stress events 

Supports immunity 

Helps improve growth throughout production

Recommended Use

Mix at the rate per ton of feed.

Broilers | 0.6-1.0 lb.
Layers & Turkeys | 0.3-1.0 lb.

Swine

Benefits

Helps maintain animal health during stress events 

Supports immunity 

Helps improve growth throughout production

Recommended Use

Mix at the rate per ton of feed.

Sows & Boars | 0.5-1.0 lb.
Nursery | 1.0-2.0 lbs.
Growers & Finishers | 0.5 - 1.0 lb.

Cow/Calf

Benefits

Helps maintain animal health during stress events 

Supports immunity 

Helps improve growth throughout production

Recommended Use

Mix 1-2 grams per 100 lbs. of body weight per day.

Dairy Calf

Benefits

Helps maintain animal health during stress events 

Supports immunity 

Helps improve growth throughout production

Recommended Use

Mix 1-2 grams per 100 lbs. of body weight per day.

Let’s Tackle Your Toughest Challenge

If there’s a problem holding your operation back, we’re here to help you solve it. If you’re ready for products that bring together nature and science, let’s talk!

Ralco News

A large group of yellow chicks stand and walk on wood shavings inside a brightly lit indoor poultry farm. The environment appears crowded with many chicks in the background.

Keep Coccidiosis from Disrupting Flock Performance

Coccidiosis remains one of the most common and costly digestive challenges in poultry production, …
Read moreKeep Coccidiosis from Disrupting Flock Performance
A gloved hand holds a test tube containing a yellow liquid and green leaves, suggesting a scientific experiment with plants.

Are All Oregano Essential Oils the Same in Poultry Production?

In commercial poultry production, oregano essential oil is often treated like a commodity …
Read moreAre All Oregano Essential Oils the Same in Poultry Production?
Several young pink pigs stand closely together on a slatted floor inside a barn or indoor pen, looking towards the camera. The environment appears clean but industrial.

New Research on When Essential Oils Deliver the Most Value in Swine Production

For years, essential oils have lived in a gray area within livestock production. They’re talked …
Read moreNew Research on When Essential Oils Deliver the Most Value in Swine Production
Ralco logo with a green vertical bar and a leaf inside a yellow circle, next to the word "RALCO" in white, and the tagline "Nature Elevated by Science" below.
Four faded certification logos in a row, including HALAL, RMPP, GMP+, and FAMIQS, on a light background. Text and images within the seals are barely visible.

Subscribe for news and updates

Home
About
Our Science
Shop
Resources
Careers
Contact Us
Call 1 (800) 533-5306

  • Facebook
  • Instagram
  • YouTube
  • LinkedIn

Copyright © 2026 · Ralco Agriculture · All Rights Reserved · Privacy Policy

We use cookies to enhance your browsing experience, serve personalized ads or content, and analyze our traffic. By accepting, you agree to our use of such cookies. Privacy Policy