Behavioral Changes:
* Increased vocalization: Guinea pigs in heat tend to squeak, chirp, and make other noises more frequently. This is often a way to attract a mate.
* Restlessness: They may pace around their cage, hop, and appear agitated.
* Increased urination: This is related to scent marking, as they try to attract males.
* Aggressive behavior: Some females become more aggressive towards other guinea pigs, especially males.
* Lordosis: This is a characteristic posture where the female raises her rear end and lowers her head, making it easier for the male to mount her.
Physical Changes:
* Swollen vulva: The vulva becomes noticeably larger and may appear red or pink.
* Increased discharge: There may be a slight mucus discharge from the vulva.
Frequency of Heat Cycles:
* Regular cycles: Guinea pigs generally go into heat every 14 to 16 days.
Important Considerations:
* Age: Females are fertile from around 4 weeks old.
* Individual variation: Not all females exhibit all of these signs. Some might be more subtle than others.
* False heat: Sometimes females might display some of these signs without being in heat.
Other Notes:
* Pregnancy: If a female is pregnant, she will not be in heat.
* Health: If your guinea pig is displaying unusual behavior or physical changes, it's best to consult a veterinarian to rule out any medical conditions.
If you are unsure about your guinea pig's heat cycle, it is always a good idea to consult a veterinarian for professional advice.