Christian Posbergh

Christian Posbergh

Aug 05, 2016

Group 6 Copy 3,082
5

Moorit in Sheep Breeds

We are over 20% of the way there! Thank you to all the backers so far, I appreciate your support! I also encourage those of you interested in this project to donate, every little bit helps! 

Moorit has been present in sheep for hundreds of years. Moorit is an old Icelandic word that roughly translates as ‘as red as the moors’. The moorit mutation results in a sheep with brown fleece, skin, nose leather, hair, etc. There are many different shades of brown ranging from a light fawn to dark chocolate, all of which generally fall under a Moorit classification. These different Moorit shades are thought to be the result of various modifier genes. Because of these modifiers it can sometimes be very difficult for breeders to distinguish between a very light black and a very dark brown. We hope to find the mutations responsible for brown versus black, regardless of shade. Then breeders can use a DNA test, since the DNA of the animal won't change, to conclusively determine if their sheep is truly moorit. 

Manx Loaghtan

While selection in most sheep breeds has been towards a pure white fleece, several breeds still have moorit as an option for fleece color. Some of these breeds are considered ‘primitive’ or ‘unimproved’ because they have not been under intense selection pressure for production traits. Some of these breeds include: Icelandic, Shetland, Castlemilk Moorit and these interesting looking ones called Manx Loaghtan native to the Isle of Man. There are some other breeds moorit is found in that we will be investigating such as the Finnsheep and Romeldale/CVM. Because moorit is a recessive trait it is possible for it to hide in breeds for a long period of time before being discovered. Many of these breeds sell fleeces prized by hand-spinners, both for their quality and rarity, because Moorit is a relatively rare color. I look forward to discovering with you if the mutation is the same across all these different breeds or different mutations arose after each breed was developed. 

Castlemilk Moorits


5 comments

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  • Elizabeth Spencer
    Elizabeth Spencer
    I raise American Blue Morrit sheep. There are no blacks. They are either morrit. Or have morrit heads and legs with blue bodies. Some are white but all are morrit carriers
    Oct 30, 2020
  • Laszlo Traffa
    Laszlo Traffa
    Based on what I have read so far, I took an entirely different approach to creating Moorit coloured wools. I can post a pic of the surviving wether, if you want it.
    May 28, 2020
  • Laszlo Traffa
    Laszlo Traffa
    I bred sheep with the Moorit colouring during a black wool breeding programme around 2009-2016 in Western Australia. I found it relatively easy to bring out the Moorit colouring in merinos. I abandoned the breeding programme and have only one Moorit wether left from the programme. I was after what I call, Midnight Black fleeces and have some data via wool testing on the various fleece colours. These were all poll but I will, when I restart my programme in 2021, be using non-poll merinos. My Moorits were down to 18 micron and had other factors that a stud breeder of merinos (Collinsville and Peppin) here found impressive (I was very new to this at the time).
    May 27, 2020
  • ChrisEReed
    ChrisEReed
    Thanks for share an informative post . Appreciate it and keep posting.
    Mar 07, 2019
  • Chelin Jamie Hu
    Chelin Jamie HuBacker
    I'm a CAS alumnus and a knitter myself. I am always fascinated by the incredibly diverse qualities and uses of wool. I'm including a link to show you how popular natural color wool is in the knitting/crocheting community and the beauty of these projects (I'm sure you already know!). http://www.ravelry.com/patterns/library/rams-and-yowes Good luck with your project and all future endeavor!
    Aug 19, 2016

About This Project

Sheep come in a variety of different patterns and colors, with black or white individuals being the most common. Brown is another rarer option, often called Moorit. There are no genetic tests currently available for shepherds to identify moorit carriers. Our project aims to identify the genetic variants responsible for moorit in sheep using a candidate gene sequencing approach. Discovering the genetic basis for moorit will allow shepherds to make more informed breeding decisions in their flocks.

Blast off!

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