Guinea pigs can start breeding when they are three months old. Generally speaking, guinea pigs first go into heat when they are about three months old. It is easier to get pregnant and give birth at this time. If they have not started to go into heat or give birth after more than 7 months, it will cause certain problems in the later production. The difficulty is that the pubic symphysis is difficult to open.

Precautions for breeding guinea pigs:

1. In terms of diet, pay attention to nutritional supplements. You can feed guinea pigs some rat food specially used during pregnancy. Be careful when feeding to prevent choking, and do not eat cold or irritating foods.

2. In terms of hygiene, pay attention to the cleaning of the cage and ensure that the cage is clean and dry. If it contains bacteria, it may infringe the guinea pig's body and have a negative impact on the guinea pig.

3. In terms of breeding, try to avoid mixing with male guinea pigs to avoid getting pregnant again. Frequent pregnancy will have adverse effects on the body.