Reproduction. Voles can breed during any time of the year, but spring and summer are the most common seasons for breeding. A female vole will have 1-5 litters per year, each litter averaging about 3-6 babies. Females are able to reproduce at about 1-1 Â½ months old.
There are so many cats without homes that some shelters neuter kittens early, at 8 â 12 weeks old, so they are neutered prior to adoption. This is the only way they can guarantee that a kitten will be neutered. Normally, cats are neutered at 6 â 8 months old.
1 Population control. 2  It is important to neuter a female cat before she can have kittens herself. 3  This happens very quickly depending on breed, time of year born and individual development. 4  The first season usually occurs around six months but can be earlier. There are unlikely to be enough new homes available for them. 2  Health issues. 3  Female cats which are not neutered are more likely to suffer from pyometra (infection of the womb) later in life and with mammary tumours. 4  Queens with infectious diseases may pass these on to their kittens.