* Parents: This is the most general term. It simply refers to the organisms that produce offspring.
* Breeding pair: This term is often used in the context of animal husbandry or selective breeding, indicating that two individuals have been specifically chosen to mate.
* Mating pair: This term is similar to "breeding pair" but may be used in a wider context, including naturally occurring mating pairs.
* Parental generation: This term is used in genetics, specifically referring to the original organisms involved in a cross, often denoted as "P" in genetic diagrams.
The best term to use will depend on the specific situation and the level of detail needed.