Culbac Hay Product Line

Culbac® Hay Preservative – Liquid: Mold, Mildew, Yeast and Bad Bacteria Inhibitor for Hay

Culbac Hay Preservative Liquid is a unique fermentation preservative product designed to prevent and protect from molds, mildews, yeast and bad bacteria in hay. Culbac Hay Preservative Liquid works on the hydrostatic properties of hay to help it dry down more quickly so you can bale more quickly from the field. With the preservation and protection from unwanted fungi, you can bale at slightly higher moistures which helps to maintain nutrients and means higher protein in each bale.  Culbac Hay Preservative Liquid reduces leaf shatter, so leaves remain in the bale, not in a dusty mess on the ground. Using our product, lactic acid and enhanced good microbial activity within the bale allow the stems to remain pliable and palatable for your animals.

High-quality hay is an important forage component for efficient growth and performance in ruminant diets, because higher-quality hay can reduce protein and energy supplementation costs, and help improve animal performance overall. Culbac Hay Preservative Liquid allows baling at a higher level of moisture, to produce forage that is greener, softer and higher in crude protein and Relative Feed Value (RFV).

Culbac Hay products can be applied at the baler, the rake or swather, the windrow, or the cutter ahead of or behind the conditioner. Learn More

Contact for pricing at 1-800-238-6075 or request a quote below.

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SKU 3-5 Category Tags , , ,

Culbac Hay is:

An all-natural product

Safe and easy to use

Available in liquid and dry form

Culbac Hay Preservative is scientifically proven to:

Why is Culbac easier, safer and more Economical to use?

How does Culbac Hay Preservative work?

Culbac Hay Preservative includes bacteria and their fermentate which provides unique qualities to protect enhance, and promote the value of hay, whether grass or crop hay. After cutting, ensuring dry down and the ability to bale at higher moisture allows you to rapidly remove your windrow. This means faster regrowth and more substantial subsequent harvest. At baling, higher moisture content allows higher leaf retention, pliability of the stalk and retains nutritional value. Minimizing mold, mildew and yeast is key for protecting the investment you make in your crop and ensures high ROI.

Culbac Hay Preservative works as both a protectant, and an inoculant. When hay is cut and dried down, the nutritional elements in the hay can begin breaking down. But the tastiest and most nutritious hay is important for successful animal production.

How does Culbac prepare the hay for safe storage and keep all of those good nutrients in the hay as well?

After cutting, of grass hay, alfalfa hay, or some other type of forage, the goal is to dry it down as quickly as possible. Culbac products help this happen because the fermentate from the unique bacterial process is incorporated. The fermentate contains elements help change the hydrostatic tension and allow the release of the moisture on the outside of the hay and maintain the pliability of the stalk.

Culbac also allows for baling at higher moistures which allows the leaves to stay on the stems without shattering. This maintains the protein and nutritional value of the hay. The additional protection from natural lactic acid and other natural preservatives ensures prevention of losses due to molds, mildews, yeast, or pathogenic bacteria, and prevents heating of the hay which helps avoid damage and loss of value.

Grass Hay in Windrows

Research, Proof Culbac Hay Preservative Works

University and field studies, in conjunction with extensive research, have proven that Culbac Hay Preservative works and outperforms the competition. Here are a few examples highlighting the research and findings:

Dried Alfalfa in Hands

Culbac® Hay is a vital component supporting feed value and profitability

In alfalfa, leaf retention and baling at higher moisture levels help produce higher quality feed for livestock. When baled at recommended moisture levels, Culbac Hay ...
Read More →
Alfalfa in Field After Raking

Culbac® Hay treatment improves nutritional value of alfalfa hay

In alfalfa, leaf retention and baling at higher moisture levels help produce higher quality feed for livestock. When baled at recommended moisture levels, Culbac will ...
Read More →

Culbac® Hay treatment inhibits mold and preserves forage quality at low inclusion rates

Maintaining forage quality when baling grasses is an important part of feeding management. When Culbac Hay treatment is applied to baling grasses, dry matter loss ...
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Grass Hay in Windrows - 2

Improving grass hay quality with Culbac® Hay

Culbac Hay treatment allows hay to be baled at higher moisture, which increases leaf retention. When baled at the recommended moisture level, Culbac® Hay treatment ...
Read More →

Applications for Culbac Hay Preservative Liquid

Culbac Hay - Liquid Moistures
2.6 fl. oz. per ton of hay Ranging from 16% to 22% moisture
5.2 fl. Oz. per ton of hay When moisture is over 22%

Liquid Application

  • 2.6 fl. oz. per ton of hay ranging from 16% – 22% moisture.

Recommended Maximum Baling Moistures

Culbac® Hay Liquid Grasses* Legumes
Small Square Bales 21% Moisture 23% Moisture
Large Square Bales 18% Moisture 20% Moisture
Large Round Bales 16% Moisture 18% Moisture

* Grasses including: Bermuda, Coastal Grass, Tifton, etc. 

* Moisture recommendations based on maximum rates observed in TransAgra and New Mexico State University studies

Leaf retention has been shown to have a significant impact on forage quality.

Packaging Options for Culbac Hay Preservative Liquid

Liquid Availability

Unit Size Units per Case Product Code
2 gal 2 3-1102
5 gal 1 3-1105
55 gal drum 1 3-1055
250 gal tote 1 3-1250
Bulk Call for quote Call for quote

Available in quantities of 2 gallon, 5 gallon, 55 gallon drum, 250 gallon totes, or bulk

2 Gallon

5 Gallon

55 Gallon

250 Gallon



Cutting Silage with Culbac Hay Product Line Inset

"A small square bale of alfalfa hay was baled in the rain with extra high dosage rates of Culbac® Hay inoculant preservative applied on 18 June, 2010. 4/5 lb per ton or 12.8 ounces per ton hay application. On 2 July 2010, 2 weeks later, the bale tested 35% moisture and was still cool to the touch and a pleasant odor."

Partch Farms | Outlook, WA
Augies Ag Sales | Ephrata, WA

Round Hay Bales in Field with Culbac Hay Product Line Inset

"The Culbac® Hay Product has been a great addition to my custom baling operation. I have been able to bale hay as high as 21% moisture and have had great results in both quality and appearance. I'm glad I can open up my window to bale longer and my customers are happy I can get the hay off the field sooner."

John Estacio Jr. | Hilmar, CA
Owner of Sundown Farms

Cutting Silage with Culbac Hay Inset

"I’ve been using Culbac for 5 to 6 years, it’s been a great product. I bale my hay with stem moisture, which means that I don’t let it completely cure out beforehand. Just for the fact that I don’t know if I will get enough dew to hold the leaves on. The moisture content of the stems is usually fairly high. I really notice a reduction in the amount of bales that are burnt, this is generally caused by too high of moisture. Heat is generated in the bale because of the moisture being too high. I truly believe that it’s [Culbac has] reduced the heat content of the bales [that is] the higher moisture content. I would recommend it to anyone who has to bale with stem moisture. Hopefully that will help any of you hay growers who want to put up quality hay. Thank you very much. "

Dean Benedict | Soap Lake, WA
Culbac user 5-6 years