Inbreeding and litter size in pedigreed dogs
Inbreeding may negatively affect fertility, especially when mating closely related individuals. We evaluated the frequency of these matings in Dutch pedigreed dogs between 1997 to 2018 and their effect on litter size in 15 breeds. The percentage of matings between half-cousins and closer has decreased since 1999. Litter size of individual matings tended to be significantly lower only for full sib and parent offspring matings. Inbreeding depression was only evident when analysed at the population level. In two breeds, a 1% increase in inbreeding of the dam resulted in an estimated reduction of litter size of 0.05 and 0.028 pups. These findings emphasize the importance for breeders and owners to avoid mating closely related dogs.
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| Main Authors: | , , |
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| Format: | Article in monograph or in proceedings biblioteca |
| Language: | English |
| Published: |
Wageningen Academic Publishers
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| Subjects: | Life Science, |
| Online Access: | https://research.wur.nl/en/publications/inbreeding-and-litter-size-in-pedigreed-dogs |
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