The meat, dairy products and eggs that organic farmers produce are from animals that are fed organic feed and allowed access to the outdoors. Unlike conventionally raised livestock, organic livestock must be kept in living conditions that accommodate the natural behavior of the animals.
For instance, ruminants (including cows, sheep and goats) must have access to pasture. Although they may be vaccinated against disease, organic livestock and poultry may not be given antibiotics, hormones or medications in the absence of illness. Instead, livestock diseases and parasites are controlled largely through preventive measures such as rotational grazing, balanced diet, sanitary housing and stress reduction.