yep
Guinea pigs go into heat once a year in the spring, but if you are looking to breed, and you have a boar, you can breed any time. By placing the male with the female you are sending your sow into heat, but there is no way to tell if your pig is in heat, other then putting her with a male and seeing what he does.
No.
they breed pigs.
Mammals.
no
Poland China pigs is a breed of pigs developed in Ohio. It is a large breed and excellent for pork production.
When you breed pigs you typically end up with more pigs. And you can't breed more than two types simultaneously. What you get if the pigs are of different breeds is a hybrid pig.
no
No.
yes
pigs stay in heat for about 21 days then for about 1 month your pig will be back in its heat
no Guinea pigs are domesticated and easy to breed so their is no threat of extinction