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A digital abstract image features green hexagons with orange outlines and circuit-like patterns, creating a futuristic and technological appearance. The background blends various shades of green and subtle glowing effects.

Avi-Bac™


Prebiotics & Probiotics for Chicks & Stressed Birds

A digital illustration of a chicken created with colorful geometric shapes, featuring shades of green, yellow, and orange on a white background.

Avi-Bac is a natural synbiotic for day old and stressed birds that seeds the guts with beneficial bacteria and feeds those bacteria with an exclusive prebiotic fiber.

Avi-Bac™

BEST PRACTICES

MORE PRODUCTS

Watch Avi-Bac™ in Action

See how Avi-Bac helps seed the gut with beneficial bacteria, strengthen immunity and support long-term flock health!

Synbiotic for Chicks & Stressed Birds

Avi-Bac™

A light blue circular icon with various white shapes resembling bacteria or microorganisms inside, representing a petri dish or microbiology concept.

Actifibe®
Prebiotic


Benefits:

  • Prebiotics and probiotics to support immunity
  • Seeds the gut with beneficial bacteria
  • Supports digestive health, egg quality, and feed conversion

What’s Inside: Actifibe® Prebiotic, Bacillus subtilis, Bifidobacterium, Lactobacillus acidophilus

Recommended Use

  • Use 1 package per 10,000 birds.
  • Flush the water lines with the Avi-Bac solution to ensure all the birds will have access to water containing Avi-Bac.
  • Combine 1 package with enough water the birds will completely drink in 4-6 hours.
  • 1 gallon stock (1:128) makes 128 gallons of water
  • 2-gallon stock makes 256 gallons
  • 5 gallons stock makes 640 gallons
A silver Avi-Bac water additive packet for poultry shows chickens and a duck, highlights benefits for all poultry types, and features the Ralco logo.

Placement


At hatch, chicks and poults have underdeveloped gut microflora, making them more vulnerable to harmful bacteria.

Flush water lines with Avi-Bac before placement, then keep birds on it for the first 3–7 days to seed the gut with beneficial bacteria and strengthen early immunity.

Several yellow and white chicks stand and rest on the floor of a brightly lit indoor poultry farm, with blurred lights and more chicks in the background.

Feed Changes


Switching nutrient or ingredient levels disrupts gut microflora and can allow pathogens to gain a foothold.

Apply Avi-Bac 2 days before and 2 days after a feed change to maintain microbial balance and protect digestive health

A close-up of several brown hens with red combs standing together in a chicken coop, with one hen in sharp focus and the others blurred in the background.

After Antibiotic Use


Antibiotics target harmful bacteria but can also wipe out beneficial strains. Administer Avi-Bac for 3–7 days following withdrawal to restore healthy gut populations and support immune recovery.

A large group of brown chickens crowded together inside a commercial poultry farm, below a row of automated water dispensers, with the barn roof and metal beams visible above.

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A fluffy yellow chick sits on wood shavings, with another chick slightly out of focus in the background. The scene suggests a warm, indoor environment, likely in a hatchery or farm setting.

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A silver Avi-Bac water additive packet for poultry shows chickens and a duck, highlights benefits for all poultry types, and features the Ralco logo.

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A digital abstract image features green hexagons with orange outlines and circuit-like patterns, creating a futuristic and technological appearance. The background blends various shades of green and subtle glowing effects.

Where to Buy?

Avi-Bac is available through Ralco and our network of trusted dealers.

Call us at 1 (800) 533-5306 to order today or find a dealer near you!

Contact Us

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!

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