breeding guinea pigs
Female guinea pigs become sexually mature at the age of three to five weeks of age and male become fertile at the age of three to ten weeks. If you want to breed your guinea Pigs the best time is 4 months to 8 months, as after 8 months the ligaments in the bones tighten making it difficult to give birth Breeding her before or after is not good and can be deadly.. This the best age for the females as the bones of her birth canal are still flexible.
"Before breeding a guinea pig always think about how many homeless guinea pigs you can save instead of breeding" Guinea Pigs Club
CautionGuinea Pigs can sometimes breed at the age of 4 weeks, so if you don't have any plan to breed your cavies, it's better if you separate males from females when they don't need their mum anymore so there will be no unplanned litters.