Definition of statement for English Language Learners. : 1  something that you say or write in a formal or official way : something that is stated. : 2  an opinion, attitude, etc., that you express through the things you do, the way you dress, etc.
A dog owner should have an idea when the pet will go into heat. The reproductive cycle varies from breed to breed. Generally puberty will occur as early as 6 to 12 months in small breeds and as late as 2 years in large breeds.
A dog will generally go into heat every 6 months. It can vary though as some dogs will be every 4 months or every 8 months. Usually the first heat will start any time after 6 months of age. They can continue to have heats throughout their whole lives but often do stop as they get older. There's no specific age though.