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Scottish Straight x Scottish Fold

Discussion in 'Cat Breeding' started by hidak, Jun 5, 2020.


  1. hidak

    hidak PetForums Newbie

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    Is it necessary for a breeder/cattery to genetically test their Scottish Straights for a hidden fold gene before using them to breed with a Scottish Fold?


    Edit: If you are a breeder who does so, if you wouldn't mind sharing the name of your cattery.
     
  2. spotty cats

    spotty cats PetForums VIP

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    Yes it is, to ensure you aren't accidentally
    breeding Fold to Fold.
    Unless you only use BSH/ASH outcross.
     
  3. Tigermoon

    Tigermoon PetForums VIP

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    Probably but I'm not sure. I always thought that a Scottish Straight does not have the gene that causes the folded ears. However I am ready to stand corrected on this.

    I don't know anyone who breeds SF to SS they cross to BSH/BLH usually.
     
    #3 Tigermoon, Jun 5, 2020
    Last edited: Jun 5, 2020
  4. spotty cats

    spotty cats PetForums VIP

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    The ears can stand back up while still genetically being a Fold.
     
    chillminx likes this.
  5. chillminx

    chillminx PetForums VIP

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    Yes that's what I read. :)
     
  6. DJ Shiny Cat

    DJ Shiny Cat PetForums Newbie

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    I breed a Scottish Fold with a British Shorthair, and we recommend to everyone who buys our Scottish Straights to genetically test their mates if they plan on breeding with them. My vet said that The genetic problems really can only happen if you are breeding with at least one cat who actually has the gene that folds the ears, but still—to be sure—you must test.
     
  7. chillminx

    chillminx PetForums VIP

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    I'm just curious - if a cat has no copies of the mutated gene that causes the cartilage damage [so the ears are not folded] still count as being a Scottish Fold? :confused: Would the cat not have the characteristics of a BSH ?
     
  8. DJ Shiny Cat

    DJ Shiny Cat PetForums Newbie

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    There’s basically three forms of the gene, one is almost harmless, one folds the ears, and the third causes other deformities. From what I have been told, the first gene is what can be found in Scottish Straights. I am not too concerned about breeding them... but I am advised to warm people, because I still dont know all there is to know about them.
     
  9. O2.0

    O2.0 PetForums VIP

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    The gene is dominant. Either the cats have it or they don't. How many copies of the gene they have is a factor, but all cats who carry the gene will be affected on some level with osteochondrodysplasia.
     
    gskinner123 and chillminx like this.
  10. chillminx

    chillminx PetForums VIP

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    That's what I had understood O2.0. So a cat with no copy of the mutated gene is not really a Scottish Fold right? I can't understand why anyone would breed them, as they will surely be little different in appearance to the BSH.
     
    O2.0 likes this.
  11. Rafa

    Rafa PetForums VIP

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    I'll say you're not concerned.

    Aren't you the one who has taken four litters from one Queen in eighteen months?
     
    mrs phas likes this.
  12. chillminx

    chillminx PetForums VIP

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    Wow! Really?! :Arghh
     
  13. lorilu

    lorilu PetForums VIP

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  14. chillminx

    chillminx PetForums VIP

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    #14 chillminx, Jun 9, 2020
    Last edited: Jun 10, 2020
  15. QOTN

    QOTN PetForums VIP

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    As far as I know, the first Scottish Folds were bred to straight eared cats in the programme. When it was discovered that caused worse problems they are now bred to BSH etc. The deforming gene is definitely dominant but probably with incomplete penetrance.
     
    #15 QOTN, Jun 10, 2020
    Last edited: Jun 10, 2020
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