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Assuming balanced breeding, a rate of inbreeding of 1% means that at least 25 males and 25 females need to be used for breeding. Likewise, a rate of inbreeding of 0.5% means 50 males and 50 females. If non-balanced breeding is applied, the numbers of breeding males and females need to be chosen such that the rate of inbreeding is restricted to less than 1 (or 0.5)%. Depending on the animal species, this will be a realistic option or not. Consequences of number of breeding animals on the rate of inbreeding is essential to keep in mind when making breeding plans.

Thus:

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  • FAO advise to limit the rate of inbreeding to 0.5 – 1%

  • Essential in population management to use sufficient number of animals for breeding

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