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Guinea Pigs/Mating question

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Question
I take in guinea pigs that need homes due to the inability of the owners to properly care for them. I recently got in a male and female who were unfortunately housed together while with the previous owner.
They have told me that they witnessed the pair in the act and are sure the female is pregnant. Also they stated that it was successful because after the act was over the male would no longer try to mate.
My question for you...Is there any truth to that? Will the male no longer put effort into mating again if indeed he successfully impregnated the female?
I am very interested in knowing if that is true.
Either way I am taking care of both while they remain separate, but can see each other.
Thanks for your time and expertise.

Answer
Not every mating is successful. Males being males will try again. But immediately after the first mating the have to 'recharge their batteries' and will wait before trying again.

Although an interesting theory, the idea that any male would know if conception took place is absurd. If you know anything about how conception works you know that the actual coupling of the sperm and the ova takes place many hours later. That's why the "morning after" pill also known as "Plan B" works. There is no way to know if the contact between sperm and ova has been successful unless done artificially in a laboratory. Even then it may not produce offspring.

All mammals will have repeated matings during the female's estrus. That's nature's way of assuring success and offspring. Some mammals such as dogs and cats can have litters of multiple fathers. I can't imagine where this person got their information, but they are misinformed.

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Pat VanAllen

Expertise

As is sometimes the case, people in urgent need of information have a higher degree of expectation than those of us as experts are able to give. The experts on this site do their best to give the most accurate and responsible answers possible. We ask that you remember that it is not our intention nor place to criticize the professional advice given by your veterinarian, nor is it appropriate for us to comment on the correctness of a diagnosis made by a licensed physician. Our knowledge is experience based. Although many years of breeding and showing cavies gives me a wealth of experience it cannot change the fact that we as experts are not veterinarians and therefore may occasionally have to reject questions that appear to be asking us to criticize advice given by the licensed professional. Having raised and exhibited cavies for many years I have extensive experience in cavy care and husbandry. I currently have an active breeding program for pedigreed show animals but do not encourage backyard breeding for inexperienced owners. Although I don't encourage breeding for fun I'm always happy to answer any questions from an owner who is in sincere need of help. Pet owners wanting to breed should understand that even experienced breeders have litter losses. The mortality rate is high in cavies. The chance for losing both sow and pups is always present, even with experience. Although this is a site for experts to assist owners, there is no expert in any field who has all the answers. The wisest thing a good expert can know is their limitations. Not having an answer does not diminish one's ability or knowledge. It simply shows that we recognize our limitations and operate within them.

Experience

Raised and shown cavies for many years, having aquired my first cavies in the early 1970's as pets. My caviary currently handles 65 + animals in two different breeds and several varieties. Having been in the health care industry as a licensed nurse for 35 years I have hands on experience with care and needs in both humans and cavies. Member of American Rabbit Breeders Association and American Cavy Breeders Association.

Organizations
Awarded Lifetime Membership in of one of the oldest cavy clubs in the United States, on whose Board I served as Sec/Treas for six years and currently serving as President. Also editor/publisher of the club's quarterly newsletter. We are strong supporters of our youth exhibitors, most of whom are 4H members who are working on cavy projects. Through these projects they become good responsible citizens. We deal with all aspects of showing, breeding, caring for and sharing experiences in the fancy. The cavy fancy is not a new one but in some areas is still relatively unknown. Our goal is to inspire interest in high quality, responsible breeding to improve the species, not just the reproduction of guinea pigs. Our job is to educate owners to help them make the right decisions and choices in the care of their cavies.

Education/Credentials
Graduate in nursing. Certified in emergency medicine.

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