How old should a guinea pig be before she is bred?

Companion Animals October 04, 2010 Print Friendly and PDF
A female guinea pig (sow) should not be bred until she is at least 2 months of age and preferably 4 to 6 months old. If you intend to breed her, the first time should occur before 7 months of age because her pelvic bones may have hardened (a partial or complete fusion of the pubic symphysis) and will not be able to separate during birth. This results in a difficult delivery (dystocia), increasing the risk of the sow and/or babies dying during birth or the babies not being born normally.

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