Moldy food poisons chickens and should never be fed to them. Premixed nutritionally-balanced food is available in bulk (e.g. 50 lbs), or you can make your own by mixing together chicken scratch (whole wheat & cracked corn sold in bulk at feed stores) and a good selection of wild bird food.
Updated March 03, 2016. The hepatitis B virus is transmitted when blood, semen or another bodily fluid from an infected person enters the body of another individual. Because the virus is extremely infectious - 50 to 100 times more so than HIV - even brief, direct contact could be enough to cause infection.
HCV is readily transmitted through direct contact with blood, for example due to an accidental needle-stick or sharing syringes for injecting drugs. Less is known about how long the virus can remain viable and infectious on surfaces that have come into contact with blood or other body fluids containing HCV.