hybrid vigour

British  

noun

1. Also called: heterosis.  biology the increased size, strength, etc, of a hybrid as compared to either of its parents

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Example Sentences

To keep any hybrid vigour going, you need to keep mating the original two breeds.

From The Guardian

But while the UK Kennel Club has been registering crossbreeds on its database for more than 50 years, record-keeping of their parentage has been lacking, making it difficult for scientists to assess their hybrid vigour.

From The Guardian

Hybrid vigour is the “mirror image” of inbreeding depression, Nicholas writes, weakening of certain features as a result of excessive breeding with close relatives.

From The Guardian

As a general rule, the offspring of two different species or breeds has greater genetic diversity, creating hybrid vigour – enhanced fertility, health and survival.

From The Guardian

But due to tainted data overall, Nicholas stresses the importance of keeping careful records so canine hybrid vigour can be scrutinised.

From The Guardian