Fatty liver and kidney syndrome are both common conditions that can occur in chickens like the Amber White. Your vet may tell you about Fatty Liver Hemorrhagic Syndrome (FLHS) as well as Fatty Liver and Kidney Syndrome (FLKS). While FLHS can affect birds at any age, FLKS typically affects young or young adults only. To prevent either of these diseases from occurring you should feed your chickens a diet rich in biotin, which is a water soluble B vitamin. Symptoms of both FLHS and FLKS includes obesity, pale comb, egg laying is slow or has stopped, fluffed appearance, lethargy, sitting in one place without moving, and excess abdominal fat, which could be from the swelling of the liver. If your chicken has any of these symptoms call your vet right away. Your Advanced Veterinary Care will need to run a few blood tests to make a diagnosis and prescribe appropriate treatment.