The best time to start breeding your finches happens when they're about 8 months old. There are finches that are highly dimorphic, meaning one can easily distinguish their gender by simply checking out their colors. An example of this is the Zebra finches. Society finches, conversely, can be a bit challenging on this department because they don?t have color patterns that tell whether these are female or male. One technique in determining the gender of the finches is as simple as placing at least four of which inside a cage and watching which birds get attracted to whom. Once spotted, you can place them in a separate cage in order to start breeding finches. A progesterone blood test is performed to discover how much of the progesterone hormone is in a sample of blood. This female hormone is produced whenever a mature egg is released from an ovary after a process generally known as ovulation. This hormone helps you to prepare the endometrium (uterine lining) to just accept the egg if sperm fertilizes it. If the egg goes without having to be fertilized, menstrual bleeding occurs and progesterone levels drop. Extracting and analyzing the level of inflammation in your blood and synovial fluid can help your doctor determine what kind of arthritis you have. Blood tests that examine specific types of antibodies such as anti-CCP (anti-cyclic citrullinated peptide), RF (rheumatoid factor), and ANA (antinuclear antibodies) are also common diagnostic tests. Get rid of junk food and eat a well balanced diet with plenty of lean meat and fruit and veg. Try and eat as naturally from the earth as you can and avoid too many processed foods.