Avengedsoph, do you know about roan genes in guinea pigs? Can you always tell by looking at a guinea pig whether it has a roan gene? Do you know what a lethal white guinea pig is? Do you know how many sows, on average, die in childbirth? Do you know how many pups die at birth, or are stillborn?
Many, many guinea pigs carry the roan gene, which is very visible in some pigs, and not at all in others. When two roans mate, every pup has an equal chance of being born normal, or being a lethal white.
Lethal white guinea pigs are born blind and deaf, with no or malformed teeth, and badly mess-up digestive systems. If they live, and many do not, they require lifelong hand feeding several times a day, and frequent tooth trimmings, which may have to be carried out by a vet at considerable expense. Their veterinary bills are extraordinarily high, and few people will adopt them because of the intense amount of work they require. They usually wind up as sanctuary pigs, dumped on some guinea pig rescue because their owners cannot or will not care for them, and the rescue cannot adopt them out. If you want to find out something about the care of lethal guinea pigs, read (broken link removed). Mildred Mittens, the screen name of the woman who cares for Fairy, can never leave her for longer than two hours at a time. Are you ready to stay home with any lethals that may be born to your guinea pigs?
On average, one out of five sows dies in childbirth. Are you willing to see one of your sows die because you decided to breed her? Will you be willing to handfeed her surviving pups around the clock for a couple of weeks?
Are you telling us that you are willing to risk all that just to put some sows with your boars and "will try to make sure they don't have babies?" If you put them together, they will have babies. It takes seconds, literally, for a male to impregnate a female, and there's no way you'd be able to stop it, especially not with half a dozen guinea pigs running around.
What's your goal here? Do you want to have baby guinea pigs, or (maybe) see them born? Then apply as a foster for a rescue. They get many pregnant guinea pigs, and need knowledgeable families to look after them. They'll arrange for adoptions after they're born. You get the see the miracle of birth, but not because you set out to breed a guinea pig.
Do you just want a large herd? Then look for more males. You can't tell the difference in a male and female when they're running around the cage unless you just happen to get a glimpse of the male's testicles, so why does it matter to you that they be females? Or look for spayed females.
Besides, you likely won't be able to put multiples boars in with females -- they'll fight, sometimes to the death, over the females. If you get three more females to go with your males, you'll wind up with either two or three separate cages of guinea pigs, because multiple boars with the sows is NOT likely to fly.
You've got a choice here. You can be a responsible owner and refuse to breed guinea pigs when so many thousands in this country are already homeless and in need of adoption. Or you can throw the equivalent of a teen-aged temper tantrum and insist on doing what you want to do, when you want to do it, regardless of the potential harm to your animals.
What's it going to be, the adult choice or the child's choice?
