Superfood For Chickens: Broccoli

I know the go-to for lots of folks regarding their own health issues and that of their birds is a pharmaceutic solution, which often includes the use of antibiotics. I’ve written before on how the overuse and misuse of those drugs has contributed to antibiotic resistance in bacterial pathogens. Many chicken keepers are looking for more natural ways to bolster their birds’ immune systems in order to keep microbial pathogens in check.

Broccoli just might fit the bill as a superfood for chickens. It’s one of a number of vegetables in the brassica family, which also include bok choy, Brussels sprouts, cabbage, cauliflower, collards, kale, mustard greens and turnip greens. Purple cauliflower is actually a broccoli.

I can’t say that broccoli is one of my favourite vegetables, but it turns out it contains antimicrobial and antioxidant properties that may make them a viable alternative to using conventional drugs on our birds.

Nutritional Benefits

  • Broccoli contains high amounts of vitamins A and C, zinc, manganese, selenium and phytonutrients.
  • The stems and leaves contain specific carotenoids that are anti-allergenic and anti-carcinogenic.
  • The florets contain relatively high protein (20%-40%) content compared to most grains.
  • Stalks are high in fibre content.
  • The most abundant amino acids are tyrosine, aspartic acid, glutamic acid, proline and valine.


  • Studies have shown that the populations of CampylobacterE. coli, and gram negative bacteria in the caeca were decreased by fermented broccoli by 5%- 10% and Salmonella and Clostridium perfringens by 10%.
  • Potentially harmful bacteria may be significantly reduced by the organic acids, probiotics, flavonoids and vitamins in fermented broccoli. 
  • The stalks and florets contain natural antibiotics that are effective in combating E.coli and Staphylococcus aureus.
  • Supplementing manufactured feed with organic acids or probiotics can also lead to a reduction of intestinal Salmonella, E. coli and Campylobacter.


  • Antioxidants are chemicals produced by the body or found in fruits, vegetables and grains that help to find and neutralize free radicals that cause cell damage.
  • Broccoli stems and leaves improve antioxidant capability.
  • The highest concentrations are found in broccoli sprouts.

Growth Enhancer

  • Dried broccoli florets added at 3%-6% to feed improves the growth of meat birds and broilers.
  • Growth performance was improved in birds compromised by C. perfringens that were fed broccoli residues fermented with probiotics.
  • Dried broccoli florets added to feed helps to reduce costs.
  • Due to its antibacterial, antioxidant and probiotic properties dietary fermented broccoli might be a potential alternative to the use of antibiotics in animal feed.

I’m fortunate in that I’m part of a food recovery program in which I receive a variety of unsold produce from our local grocery store. Last year I was the recipient of 383 boxes, which included loads of broccoli: florets, stems and sprouts. I find that my birds don’t eat the tough stalks unless they are boiled or shredded. Good thing for them I also get lots of packaged salad and stir fry mixes that contain slivered broccoli. My dog, Lola, is happy to eat the broccoli stalks as is.

Including broccoli in chicken feed has been shown to improve growth performance and meat quality, while reducing the effects of harmful pathogens. Most folks eat the broccoli florets and discard the coarse stems and leaves to their compost or garbage, which are parts of the plant that contain valuable nutrients for our birds. Studies in layer hens have shown that feeding broccoli stems and leaves can enhance the nutrients in eggs and deepen the colour of yolks.

If you’re looking to give your birds some treats skip the human foods that contain salt, sugar or fats which can cause fatty liver disease. Instead offer them anything in the brassica family, which are rich in nutrients and help to build their immune systems naturally. An ounce of prevention is worth a pound of cure and broccoli might just be the ticket in helping to keep your flock healthy.

Credits: Matthew Wedzerai (Poultry World); Live Science; World’s Healthiest Foods All Photos: Bitchin’ Chickens

5 comments on “Superfood For Chickens: Broccoli

  1. A couple of months ago I bought a kit to start sprouting broccoli, alfalfa, and clover for my chickens. They HATED it! Lol! They were pretty young and being daily spoiled with fresh corn and watermelon so, that might have something to do with it? I’m going to try again. The littles I just hatched 2.5 weeks ago destroyed the section of my Fall vegetable garden I fenced off for them to have some “outside time” during the day. In the 9×5 section, I had three young broccoli plants, one brussels sprouts, a kale plant and two chard plants. They ate them all down to the spiny stalks! When my others were younger, I let them free range in my garden and they never touched anything really. The first thing my older chickens ever really took an interest in was the sweet potatoes I planted this summer. They will nibble on the leaves here and there. So, maybe these little guys will eat broccoli sprouts? I’m going to try! It only takes a few days to sprout them.

    I do ferment my own food made from organic, non-GMO grains. I’m not sure how I would ferment broccoli? Do you have to dehydrate it first? I don’t have a dehydrator.

    Also– I volunteer once a week at a local food recovery program. I pick up from our local health food store co-op and deliver the food to a local community center. I also take some of the produce and such home for my family. And, I have a great vegan, macrobiotic recipe for “creamy broccoli soup” that uses the stalks of the broccoli as well as the florets. It’s a great way to use up the stalks! The recipe belongs to Kristina Turner, who authored the book, The Self-Healing Cookbook and, who also lives in the Pacific Northwest on Vachon Island.

    Liked by 1 person

    • In terms of fermenting I think the leaves are dried before use.


    • Katanahamon

      I know this is older, but, when my girls were tiny chicks..they loved broccoli, and still do! I was so surprised! Generally I’ve found that if they don’t seem interested in a food, just leave it out for them..a couple hours go by, all it takes is one to be interested and boom..it’s all gone.

      Liked by 1 person

  2. Elizabeth Beale

    Thanks for this, Claire. A reminder about what to save out, from the animal food, for the chickens. A very helpful article! — Thomas.


    Liked by 1 person

  3. Anonymous

    Too funny, I dropped a broccoli leaf when I came in to see if chickens can eat them and my cat started chowing down on it.😆

    Liked by 1 person

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Everything You Need To Know About Small Flock Chickens & More

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