Tray Pack. Individually Hand Slaughtered ZABIHA Halal Chicken. From birth in the scenic Amish countryside, NEMA's All Natural Chickens are raised without use of any antibiotics, growth stimulants, pesticides, or hormones. The most important part of raising chicken is its feed. Most of the chicken sold in the market raised with the feed that contains animal by products, mostly fat protein obtained from swine. Our chickens are fed only with vegetarian diet and raised over eight weeks in a natural environment that allows them to roam freely in wide open spaces.