House report: Hillary Clinton was âjust wrongâ on Benghazi. John Hayward Follow @@Doc_0 | Wednesday Apr 24, 2013 4:37 PM.
Kittens typically reach a length and weight close to their full-grown size by 9 to 12 months of age. After the 1-year mark, most cats continue to grow at a much slower rate until at least 18 months of age. Large breeds, such as Maine coon cats, typically take even longer to grow to their full size. These cats may not be fully grown until they reach 2 to 4 years of age.
Print this page. From around the age of 5 to 8 months, kittens reach sexual maturity and are therefore capable of breeding and producing kittens themselves. Most people do not have the time or desire to breed from their cat and do not wish to add to the number of unwanted cats and kittens already looking for homes. 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.