Fatherhood in Guinea Pigs: Can the Dad Be with the Babies?

Guinea pig family units are centered on an alpha male, which would usually be the father in natural circumstances. However, there are times when mature male guinea pigs will fight and possibly cause physical harm or distress to their offspring. So, when keeping guinea pigs as pets, should you allow the father to be with the babies?

It is common practice to allow the father guinea pig to be with his babies for short periods for socialization, learning, and emotional bonding. However, the father’s behavior toward the babies should be closely monitored for signs of dominance and aggression.

A further concern is that the father might impregnate the mother guinea pig soon after she has given birth. This is not ideal for the mother, as she needs time to recover and nurse the babies. Read on to understand the pros and cons of keeping a father guinea pig with his babies.

Advantages of Keeping A Father Guinea Pig With His Babies

In most cases, it can be beneficial to keep the father guinea pig with the mother and babies after the babies are born. This is because male guinea pigs (boars) generally display good paternal instincts and can play a positive role in the social development of their offspring. Below are some reasons why it could be advantageous to keep the father guinea pig with the mother and piglets:


Guinea pigs thrive on companionship because they are social animals. Therefore, if the father guinea pig is kept with the family group, it will provide additional social interaction for all concerned. This can contribute to the family group’s overall well-being.

Teaching and Social Learning

Baby guinea pigs learn by observing and imitating their parents. By keeping the father guinea pig with his babies, he can act as a role model for them and help teach them social skills and important behaviors. In this way, a father can contribute to his babies’ development.


The father guinea pig can help protect his babies against dangers and potential threats in their environment. For example, he may display protective behaviors such as keeping watch, giving warning vocalizations, and even physically defending the young ones.

Emotional Bonds

Guinea pigs form emotional bonds with each other. Keeping the father with the family can help maintain the emotional bond between him and the mother guinea pig. Conversely, separating them could cause anxiety and stress for both parents, potentially affecting their overall well-being.

If you're considering housing the father guinea pig with the babies, you'll need to consider cage size and layout. Learn more about the ideal cage here.

Why And When To Separate A Father Guinea Pig From His Babies

There are good reasons to separate a father guinea pig from his babies, but this usually only needs to happen once the babies are weaned. However, some people firmly believe that the father must be separated from the mother before parturition and kept away from the piglets altogether.

Here are some reasons why it might be necessary to separate a father guinea pig from his babies:

To Give The Babies Time With Their Mother

It is recommended to keep the father separated from the mother and babies for the first few days after their birth. This will allow the mother a chance to recover from giving birth, and it will enable the piglets the opportunity to nurse uninhibited. During this time, the babies form a bond with their mother as their prime attachment object.

To Avoid Inbreeding With Female Offspring

Female guinea pigs (called sows) become sexually mature at about six weeks. However, it is best to allow them to mature to twelve weeks before breeding. Father guinea pigs should be separated from their female offspring once they become sexually mature to avoid inbreeding. Inbreeding leads to many health complications.

If The Father Or Male Offspring Show Aggression

Some male guinea pigs can display signs of aggression if they are territorial. Additionally, as young boars start reaching maturity, they may show signs of aggression toward the other males. The father guinea pig might not take kindly to his offspring misbehaving, resulting in a fight.

If the father has an aggressive temperament, he could injure his babies or cause them stress. Even if they don’t physically fight, the “pecking order” or tension could cause the baby guinea pigs to be distressed.

When the father guinea pig is with the babies, jealousy might arise among the group. Learn more about guinea pig emotions here.

Monitor Interactions Carefully

It is recommended to closely monitor the interactions between your guinea pigs after the babies have been born. If you decide to keep the father with the family, check out the individuals regularly to determine if there are signs of physical harm or stress to the babies.

If you separate the father but notice he is pining for the mother, try to reintroduce him to the enclosure, but monitor his behavior around the babies.

Ensure there are sufficient hiding places for the guinea pigs to escape their companions. Baby guinea pigs are more precocial than other rodents when they are born, allowing them the opportunity to run away from harm. However, they will need smaller hiding places to prevent the father from reaching them if he is aggressive.

Understanding guinea pig sounds can help you monitor the interactions between the father and the babies. Learn more here.

Other Considerations

Like most rodents, guinea pigs can breed multiple times in a year. Therefore, keeping the father guinea pig with the mother after she’s given birth could result in him impregnating her soon after. However, if other males are nearby, they will try to mate with her just after she’s given birth unless the father is there to fend them off.

So, suppose you aren’t planning on breeding guinea pigs and want to be a conscientious pet owner. In that case, it is better to have the father neutered as soon as possible.

Likewise, male and female siblings and parents should be separated after weaning to avoid unwanted pregnancies and inbreeding.


You can allow a father guinea pig to be with his babies as long as it is under close supervision. The advantages of allowing him to be with his babies include socializing, protection, learning, and forming emotional bonds. However, if he displays aggressive behavior, he should be kept away from his babies for their safety.