breeding.

Question
What is the oldest age of which a guinea pig can breed? and how many litters can they have in an average life span?

Answer
Hi

A female should be bred for the first time after 9 months of age as her pelvic bones have fused. Its also unfair to breed after 3 years of age.

You need to give them female a couple of months rest after one litter so I guess 3-4 times would be the most you could expect.

Andy