biopreparados.es

Lactic acid bacteria serum (LAB)

Lactic acid bacteria serum (LAB)

You are viewing a freely accessible recipe. Create a free account to access the full recipe collection.

Create a free account

Home Cultivation of Lactobacilli for Livestock

Probiotics and microbiota Bio-input
commercialized
Fermentation Most viewed Most requested Internal use

Fermentation

Biological transformation of the plant material by microorganisms (yeasts, bacteria) in total or partial absence of oxygen, releasing and transforming active compounds over a longer period than the other techniques (days to weeks).

Process summary

1) Chop the plant material and submerge it in water, in a wide, non-airtight container (to let gases escape). 2) Stir daily during fermentation. 3) Let ferment from several days to several weeks, depending on ambient temperature, until it stops foaming. 4) Strain and dilute before use — the undiluted product can be very concentrated.

See all preparation methods

⛔ Not authorised EU

A homemade culture of beneficial lactic acid bacteria, used diluted in livestock drinking water as a traditional fermented culture. This is the same “LAB” technique widely documented in Korean Natural Farming, where it is also used as a compost inoculant and as a diluted foliar biostimulant—here focused on its application in livestock farming.

Application

Application description: Dilute in water (usually 1:20 to 1:30) before adding it to livestock drinking water or feed, or to activate other biological preparations during fermentation. Repeat 2–3 times a week.

Tips

Never seal the containers tightly during fermentation: the gas must be able to escape. Store it in the refrigerator (about 5°C), where it will keep for approximately 6 months. If you add brown sugar or molasses until saturation is reached (until it no longer dissolves), it can be stored for up to a year at room temperature. Before using it for livestock, always dilute the culture: the documented guideline is 2 to 3 ml of culture per 10 liters of drinking water for small animals—for larger species or quantities, adjust proportionally and monitor the animal’s digestive tolerance, introducing the product gradually. This does not replace the advice of a veterinarian for any digestive issues, and it is not recommended for very young or debilitated animals without professional supervision.

Preparation process

1) Rice water: Fill a container one-third full with unwashed rice and cover it with chlorine-free water (approximately one-third more by volume). 2) Stir vigorously until the water turns whitish and cloudy from the released starch. 3) Immediately strain the cloudy water into another container and discard the rice (or set it aside for consumption). 4) Cover the container with breathable paper or cloth (never seal it tightly) and let it ferment for 3 to 5 days in a dark place at room temperature (about 20°C). 5) You’ll know it’s ready when it smells like sour milk or yogurt, with a whitish sediment at the bottom: that’s the rice whey. 6) Mix the rice whey with whole milk in a ratio of 1 part rice whey to 9 parts milk (for example, 100 ml of rice whey to 900 ml of milk). 7) Cover it again with breathable paper and let it ferment for another 3 to 5 days in the dark. 8) After that time, the mixture will separate into a yellowish liquid (the lactic acid bacteria whey) and a solid portion (curd): carefully separate the liquid by gently straining it so as not to mix the two phases. This yellowish liquid is the lactic acid bacteria (LAB) culture, ready for use.

Ingredients

  • Unwashed rice (or rice-washing water). Chlorine-free water (rainwater or water that has been left to stand for 24 hours). Whole milk containing lactose (cow's milk, goat's milk, or reconstituted powdered milk). Optional, to extend shelf life: molasses or brown sugar.

Tools and equipment

  • A container for soaking the rice. A strainer or fine mesh cloth for straining. Glass or plastic containers with non-airtight lids (they must be able to "breathe"). Breathable paper or cloth and rubber bands to cover them. A dark bottle or jar for storing the final culture.

Product obtained

A translucent yellowish liquid with a lactic acid odor (similar to yogurt), rich in live lactic acid bacteria (Lactobacillus). It should be stored in a tightly sealed jar in the refrigerator or with added sugar as a natural preservative.

Source / Reference

The "Lactic Acid Bacteria (LAB)" technique of Korean Natural Farming (JADAM), as documented internationally (likeplants.com, "LAB: Cultivation of Lactic Acid Bacteria"). See also the study on whey fermented with lactobacilli in calf feeding (Autonomous University of Yucatán, via Scielo Mexico, 2009), which documents growth benefits and concentrate savings with a laboratory strain (Lactobacillus casei) different from this homemade culture; López, Juanfran (2022). The Biofertiliser Manual, 2nd edition. www.juanfranlopez.com; Picado, J. and Añasco, A. Preparación y uso de abonos orgánicos sólidos y líquidos (in Spanish). Agricultura Orgánica series, CEDECO (Costa Rica)

Recipe written in our own words by biopreparados.es. Copyright and sources

Do you know the author or the source? Tell us

Contact person

Grégory Prybys
Tel: +33 7 75 76 37 70 — WhatsApp: +54 9 11 2157 0868
Country: Argentina

Share this recipe

Content hidden: this page is protected. Close developer tools to keep viewing it.

Regulatory status

⛔ Not authorised in the EU as a home-made preparation

Home-grown lactic acid bacteria intended for addition to drinking water or livestock feed. According to Regulation (EC) No. 1831/2003, microorganisms intentionally added to feed or water to perform a specific function (for example, to stabilize the intestinal flora) are considered additives, and no one may market, process, or use them without strain-specific authorization. An uncharacterized homemade culture does not have such authorization.

Official texts

Official sources automatically checked on 20/10/2026.

What the icons mean: ✅ Authorised ⚠️ Tolerated 🟠 Not prohibited ⛔ Not authorised EU 🔎 Status being verified Full details →

Documentary information, checked on 12/10/2026. Not a substitute for legal advice; regulations may vary from country to country. See the regulations · Substances authorised in Europe

Related recipes

Inoculants

Bijamrita

✅ Authorised (some countries)
Plant vitality

Diluted cow's milk

✅ Authorised EU