How old does a female and male guinea pig, have to be to breed them?
Guinea pigs are biologically capable of breeding much younger than is good for them to do so, at between 3 and six weeks depending on the individual pig. Sows should be bred for the first time at between 3 and 6 months. If you wait longer for a first breeding, you run an increasing risk of flexibility loss in the pelvic joint which can lead to serious delivery problems. If you breed much younger than 3 months, you also increase the risk of delivery problems and of stunting the sow’s growth. Our rule of thumb is 3 months and 22 ounces (625 g) for a minimum age and weight with 25 or 26 ounces preferred. People here are making it sound like there is a switch that gets thrown at 7 months causing the pelvis to fuse solid at 7 months, 8 months, 9, 10 11, months or a year (you choose the month). That is simply not so. What does happen is that the chances of a sow loosing flexibility increase with age so that it becomes increasingly dangerous to breed her as she ages. Some sows never loose fle
