This is an article on liver disease in small animals from Margaret Wissman's exotic pet vet .net site. Although its primary patient is a cockatiel, it is about all small animals seen in vet practices.

When she mentions aflatoxin in corn she is referring to dried corn and peanuts that are sometimes fed to parrots not fresh or frozen corn.

It makes liver disease easier to understand. It is also discussed in the Merck Veterinary Manual which can be accessed online.

http://www.exoticpetvet.net/index.html
http://www.merckvetmanual.com/mvm/index.jsp