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8 Comments

What Are Polled Goats?

what are polled goats A “polled” goat (of any breed) is one that is naturally born without horns. Almond Joy in the first large picture below is polled while her sister Toffee in the second large picture below is not. You can see a small blackened area on Toffee’s head where her horn buds have been burned off (a process called disbudding). 

In the photo to the right, the goat kid on the left is polled while the one on the right is horned. When they’re babies, it’s not always easy to tell which are polled and which are horned (see How To Tell Whether Baby Goats Are Horned or Polled)

Most goats in the US today are naturally born with horns, and many dairy goat owners choose to de-horn (typically by disbudding) them when they’re babies for various reasons (see Disbudding Goats). Since disbudding baby goats is not a process that anyone enjoys, I decided to pursue breeding polled goats and wondered why more breeders weren’t also.

I learned that there were once many polled goats in the US (some show scorecards even awarded more points for being polled), but that in the mid-1940s an article was published by the USDA that linked polled goats with increased chances for producing hermaphrodism (an animal with both male and female reproductive organs that’s sterile). 

Almond Joy

Polled Bramblestone Almond Joy

This was only one report and the statistical significance is still being questioned; however, breeders quickly began culling or hiding any polled genetics. According to the report, when breeding a polled goat to another polled goat, there could be a 1 in 8 chance of producing a sterile animal. So, some animals that were naturally polled were not registered as being polled, and polled animals were disbudded to disguise the fact that they were naturally hornless. 

Despite the negative stigma that was attached to polled goats, there have been a few breeders over the years that have been breeding polled goats successfully without producing any increased incidence of hermaphrodism. They maintain that it’s just as likely to produce hermaphrodism when breeding two horned goats as when breeding two polled goats. There is still a great debate on the subject, so it’s important to at least understand how it’s determined whether a goat is born polled or horned.

In goat DNA, there are two “slots” for horn genes and each goat gets one slot filled by its dam and one slot filled by its sire. The horned gene is recessive and the polled gene is dominant. So, if a goat receives two horned genes it is homozygous horned (and appears horned), if it receives one of each it is heterozygous polled (the dominant polled gene “hides” the horned gene and it appears hornless), and if it receives two polled genes it is homozygous polled (and appears polled).

What Are Polled Goats - Toffee

Disbudded Bramblestone Toffee

Thinking about it another way (P=polled gene, h=horned gene):

hh = Homozygous horned – cannot produce polled offspring unless bred to polled mate.

Ph = Heterozygous polled – can produce polled and horned offspring, unless bred to homozygous polled mate.

PP = Homozygous polled – cannot produce horned offspring, regardless of mate.

Some breeders believe they minimize the possibility of producing a sterile animal by never breeding a polled goat to a polled goat, whereas others don’t worry about the possibility and believe the rate of incidence is the same whether breeding polled to polled, polled to horned, or horned to horned.

We prefer not having to disbud the kids, and so have quite a few polled goats. Finding a homozygous polled sire would be great for us, we could breed him to horned dams and never have to disbud another kid!


Related posts:

The Pros & Cons of Owning Goat Herdsires
Nigerian Dwarf Goats - Registered or Unregistered?
5 Reasons for Nigerian Dwarf Goats
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Filed Under: Herd Basics & Behavior

About Lesa

Lesa Wilke is a homesteader and freelance writer who loves to inspire others on their journey to more sustainable lifestyles. She accomplishes this by sharing the skills she’s learned (plus support, advice & tips) while farming goats, chickens, honeybees, and produce.

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Comments

  1. Michelle says

    February 8, 2023 at 2:17 am

    Do you have to do genetic testing to determine your polled goat is homozygous?

    Reply
    • Lesa says

      February 8, 2023 at 7:09 pm

      Hi Michelle,
      That’s a great question! I don’t know if there’s even a genetic test available to determine that. I’ll have to investigate. Anyone else know?

      Reply
  2. Jen Terwilliger says

    January 20, 2023 at 1:08 pm

    Hi Lesa, This article is so clear and concise. I have a polled buck who had a ‘clandestine date’ with one of my polled does who just produced two little bucklings (I didn’t even know she was pregnant), one I know is polled, the other I can’t tell yet. I was going to make both wethers even though their genetics are fantastic just because I read that breeding two polled goats was BAD without really understanding why. I’m so glad I read your post, I’m reconsidering as retaining a homozygous polled buck sounds like a good plan. Thank you!

    Reply
    • Lesa says

      January 23, 2023 at 8:13 pm

      Hi Jen, I’m glad the article made it clearer for you and that you’re reconsidering wethering them given their fantastic genetics. Good luck with getting the homozygous polled buck, unfortunately they seem to be extremely rare.

      Reply
  3. Megan McGhee says

    November 1, 2022 at 11:50 pm

    If breeding a homozygous polled sire to a homozygous horned dam – what are the chances of the kids being polled? 50%?

    Reply
    • Lesa says

      November 2, 2022 at 10:20 pm

      Hi Megan, It doesn’t matter what you breed a homozygous polled sire to, all he can produce is polled goats. He has two “slots” for horned/polled genes and since he’s homozygous polled, both his slots are filled with polled genes. All he can pass down is a polled gene, and since polled is dominant, all his kids will appear polled no matter what their other gene slot is filled with. Unfortunately, the existence homozygous polled sires seems to be very rare.

      Reply
  4. Joy Davis says

    February 16, 2016 at 8:53 am

    Love your site-have learned a lot as a new goat owner and frequently refer to your articles when I have questions. Your article today is very timely as I am taking one of my doelings back to the breeder for disbudding-her sister hasn’t developed horns-the buck was polled. Thank you so much for all the great information!

    Reply

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