Effect of age and parity on litter size in pigs.
Litter size increased (P less than 0.01) as the age of the dam at farrowing increased. However, previous reproductive experience (parity) had no direct effect on litter size of dams of the same age.
D000818:Animals; D005260:Female; D006801:Humans; D008098:Litter Size; D008423:Maternal Age; D010298:Parity; D011247:Pregnancy; D013552:Swine / Q000502:physiology*