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How to make fermented feed

What is fermented chicken feed? According to Linda of Garden Betty,

“In a nutshell, fermented chicken feed is probiotics for your chicken. It’s a wet mash (the chicken keeper’s term for moistened food) created by lactic acid fermentation (the same type of fermentation that occurs naturally in sauerkraut). Just like kraut, it contains all the bacteria that’s good for your gut: LactobacillusLeuconostocPediococcus, and other beneficial bacteria and yeasts.”.

Linda provides a plethora of wonderful information in her post on fermented feed. She has a smaller set-up (3 chickens) and I’ve found that all methods slightly vary, but the end game is the same. Yummy, nutritional feed for your happy hens and roos.


How and why you should try fermenting chicken feed for your hens and your wallet.

Fermented foods and why they’re good for you

You likely already know what fermented foods are but don’t yet identify those foods as fermented. Most commonly, sourdough bread, yogurt, apple cider vinegar, kombucha and sauerkraut are all fermented foods. More specifically, these products utilize the process of lacto-fermentation just as fermenting chicken feed does.

Fermentation is an anaerobic process where yeast and bacterias (microorganisms) break down (or ‘feed on’) sugars into other products such as organic acids, gases or alcohol such as wine, beer and cider.

Why should you ferment your chicken feed?

An average sized chicken is supposed to receive roughly 1/4lb of feed per day (or about 3/4 cup). A larger sized chicken is supposed to receive around 1/3 lbs or 1 cup of feed. If you buy a 50 lb bag of feed that means your feed bag has around 150-200 servings of feed going by the measurements above.

By fermenting chicken feed, you could likely double those digits and cut feed costs in half?

What if I told you that you could almost double those digits?

I have around 25 chooks who eat a cup of feed per chicken per day. That means, at 25 cups of feed per day, I was buying chicken feed every 6-8 days. I wanted to buy nicer feed but just could not afford to.

Generic feed where I am at the time of writing this in 2018 is $12.99/50 lb bag and Organic, Non-GMO feed is $25.99 for a 40lb bag. $0.26 per lb compared to $0.65 per lb? It just wasn’t in my budget. My flock does roam all day with access to a field to forage and freshly dropped muscadines in the summer, but the nutritional value of their chicken feed could always be better.

I found The 104 Homestead‘s post on “Fermenting Chicken Feed: Less Money, More Nutrition“. I’m familiar with the fermenting process because I brew my own kombucha and I know the health benefits it can provide.

The math seemed great and I loved that my chickens would get more nutrients from the generic feed I could afford to give them. Also, if it really did double the quantity of the feed, I could afford to start buying organic, Non-GMO feed!

My last bag of generic feed (50 lbs) lasted me 20 days when I fermented the batches. That is over DOUBLE the lifespan of when I’m feeding dry pellets to the flock.

Nutrition requirements for chickens

Before ever starting a project that potentially alters the nutrition given to your animal, it’s smart to understand what your animal needs so you can adjust appropriately. Make sure your flock is offered a balance ration of fats, carbohydrates and proteins paired with sufficient vitamins and minerals. 

According to the University of Georgia Extension, “A starter diet is about 24% protein, grower diet 20% protein, and finisher diet 18% protein (1). Layer diets generally have about 16% protein. Special diets are available for broilers, pullets, layers, and breeders. Whole grains can also be provided as scratch grains.Jan 10, 2003“.

There’s a great chart on the Nutrition for the Backyard Flock resource showing the required nutrients for birds at every stage of life. Take a look at this chart and a breakdown of the nutrients your flock needs before trying our fermented chicken feed. 

My fermented feed process

Supplies you need:

  1. Four 5 Gallon Buckets
  2. 4 lids (Or you can use cheesecloth and a rubber band)
  3. Hose or another clean water source (some prefer filtered water but I use tap water with no issue)
  4. Bag of Feed (I use layer pellets)
  5. 3 Quart Feed Scoop (This equals 12 Cups)
  6. Optional: Additives such as scratch grain, BOSS, etc.

***Note: These measurements are for 25 adult chickens. Adjust accordingly, of course, for your own numbers. Also note that with my method, each chicken will receive slightly less than 1 full cup of fermented feed per chicken***

Step-by-step directions

  • Day 1:
    1. Add your feed! I add one full scoop of feed to the bucket (3 Quarts/12 Cups). As seen below, my Day 1 bucket is labeled with the black lid. I don’t close the lid completely because you need air to achieve lacto-fermentation, which is what we’ll be achieving in this process.
    2. Add water. Your feed will almost immediately inflate, it’s pretty cool to watch. Make sure your water level is ABOVE the feed level. That means you should watch the feed the first few times around because you might need to add more water.
    3. Stir your bucket, put the lid on it, and come back at least once more that day to give it another quick stir and add water accordingly.
      • I add one scoop of 5 Grain Scratch on Day 1 in addition to the dry feed. My flock loves this! Fermenting grains of different varieties along with your dry feed is a great way to add additional nutrition.
Fermented Feed
  • Day 2
    1. Stir Day 1 feed and add water if you need to. You should see little bubbles in your Day 1 bucket (which is on its second day of fermenting). This is a great sign that the Lacto-fermentation party has commenced!
    2. Grab your second bucket and repeat the three steps from Day 1. Add one full scoop of feed, cover with water, stir, and put a lid on it.
      • The original Day 1 bucket with the black lid is now a “Day 2” bucket so it scoots down to the right and gives its spot to the new Day 1 bucket.
      • Make sure you come back that day to stir your two buckets and add water accordingly.
  • Day 3
    1. Repeat the steps from Day 1, but with a third bucket.
      • Your black lid bucket is now scooting down to the 3rd spot on the table.
    2. Stir all your buckets well. You might see foam or a film on top that might look like mold, but more than likely is not mold. If your feed smells sweet like yeasty dough, has been covered with water, and is bubbling when stirred, you shouldn’t have mold.
    3. Optional: On Day 3 I add 1 cup of BOSS to my original Day 1 bucket. For me, this is the bucket that has had a black lid. Stir it in!
  • Day 4
    1. Grab your fourth bucket and repeat the steps from Day 1.
    2. Stir all of your buckets and add water accordingly.
    3. Your original Day 1 bucket with the black lid is finally ready to go out to the chickens! It should be at the end of the row with three “red lid” buckets to its left. Stir it up well and serve.
    4. Once your black lid bucket is empty from serving it to the flock, star the process over.

What happened when I started fermenting feed?

Well, besides saving a fair amount of money, my chickens’ poo smelled less stinky. Egg production became a bit more steady and it felt like the egg weight increased along with the quality of the yolk. There was a significant drop in wasted food, which also contributes to saving the moolah.

Keep in mind that I had a great experience with fermenting chicken feed, but you might not. If you have a large flock, consider starting with a smaller quantity to see how your backyard chickens react. I am not, nor have I ever claimed to be, a licensed veterinarian and can not scientifically speak to the well-being of your animal. For years I, along with many other homesteaders, have fed their backyard chickens layer pellets with no negative effect. Each farm animal requires a different thing, so keep an eye on your flock as a whole and adjust accordingly.

Important notes to summarize fermented feed

  • You’ll be starting a new bucket of fermented chicken feed every 24 hours.
  • When starting your very first batch of fermented feed, you won’t have a bucket ready for the first 3 days. On the fourth day, you will have your first ever ready bucket and every day after that you’ll have a ready bucket. (As long as you continue this cycle, of course).
  • On Day 5 you’ll be feeding your chickens your original “Day 2” bucket.
  • Day 6 you’ll feed the original “Day 3” bucket.
  • Then Day 7 you’ll feed your original “Day 4” bucket.
  • Finally, Day 8 you’ve successfully made it through your first original buckets.

With the four bucket method, you should have a perfectly fermented bucket of feed and fermented grains every four days. Lacto-fermentation takes around 3-5 days. I’ve read you can serve the feed on the third day. For me, it works best serving it on the fourth day so my bucket gets a solid 3 days of fermentation. In certain warm climates, it is possible that fermentation can become rapid within 24 hours. Keep an eye on your feed and look for bubbling and a yeast-like smell.

You can add various additives when fermenting chicken feed such as beans, seasonal grain, etc. I’ll experiment with this once winter rolls around and the Florida vegetation/jungle dies down a bit. I do add vitamins and electrolytes to my fermented feed in the winter since my flock is foraging less and their immune system might not be as strong.

By the fourth day of fermenting, the 12 Cups of feed I added to the bucket has turned into 24 cups of fermented feed. That means my 50lb bag of feed acts as the equivalent of a 100lb bag!

Some days my chickens eat every bit of the feed, other days they decide to forage more. Adjust accordingly. I can’t stress how important water levels and stirring/aerating your batches are.

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  1. Hi Chelsea I just read your article and I definitely ordered your online book as I am reading 13 hog and it’s killing me financially oh and did I mention 150 chickens and 17 ducks three dogs and a cat I’ve heard that fermenting can almost double your feed is it swells up and I’m wondering if you find that to be true because I definitely need some help here thank youFor any help you can give God bless Phil

    1. Hi Phil! I hope the eBook helps – thanks for contributing to Grow Where You Sow. I personally had a great experience with fermented feed and it did double the quantity. Just be sure you’re meeting all your animals’ nutritional needs. You might also look into growing fodder with all those animals! https://growwhereyousow.com/fermented-feed/

      Remember, downsizing is always an option. I downsized multiple times because it was too overwhelming. I wish you the best of luck!

  2. The article says you add one 12-coup scoop of grain on Day 1 plus 1 (12-cup) scoop of chicken scratch. That equals 24 cups … which is just one cup shy of the 25-cups of grain you were feeding before fermenting. I don’t understand the math in claiming that it doubles the bag of grain when you are feeding 24/25 cup of grain per day? Were you feeding 25 cups of the chicken grain and 12 cups of scratch each day before you started fermenting?

    1. Hi Christy! Yes – I add 1 12-Cup scoop per bucket, and when it’s fermented it doubles making it 24 cups. That means I was giving 25 chickens 24 cups of feed. Losing that 1-cup of feed for my chickens wasn’t a big deal because they forage all day. So each chicken was getting slightly less than a cup of food each.

      Re the math question:
      When I feed my chickens pure pellets (NOT fermented) I give them 1 cup PER CHICKEN. That means I am giving them 24-25 cups a day of UN-FERMENTED pellet.
      When I ferment the pellets, 12 cups of feed turns into 24 cups of feed. So instead of feeding them 24 cups of raw feed, I’m feeding them 12 cups of fermented raw feed that has doubled in size.

      The scratch and BOSS is just extra, and not required to double the, in my case, 12 cups of feed to reach 24 cups. It was just something I would add to increase the nutrition of the fermented feed. Again, it’s not required. You can use this method with just pellets.

      1 bag of feed = 50 lb (if you’re feeding each hen 1 cup, then that bag will give you roughly 150 servings assuming 1 cup weighs 1/3 lb)
      When fermented, 1 cup of feed doubles in size to 2 cups. Therefore doubling the bag of pellets.

      I hope this helps! Sorry for the confusion and good luck on fermenting feed!
      With appreciation,

  3. I ferment on a much smaller scale. However, I really believe in the nutritional benefits for my 4 gals. Thank you for the information.

    1. thegreenacrehomestead says:

      I’m so happy with fermented feed for my gals. I’ll be trying fermented feed for the pig I’m getting soon, too. The nutritional benefits can’t be argued with, that’s for sure! Thanks for stopping by, Joyce!