Litter Sizes - Anatomy & Physiology

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()Map REPRODUCTIVE SYSTEM (Map)
GESTATION



Litter sizes vary considerably between species.

Polytocous Species

Species that produce multiple offspring.

  • Bitch
  • Queen
  • Sow
  • Rabbit
  • Ewe

Monotocous species

Those species that normally produce a single offspring. Twin pregnancies do occur in the mare but are rarely carried to full term and veterinary intervention is often used to prevent twin pregnancies in this species.

  • Mare
  • Cow