Mismanagement of farm animals may include inadequate feeding, inadequate housing (not allowing enough light, space, ventilation), overcrowding, unsanitary conditions, abuse of antibiotics, vaccines, and methods of forced growth. Such mismanagement may lead to a loss of productive capacity but, significantly, it may be unnecessarily inhumane and lead to severe animal stress and discomfort. The problem may occur through ignorance or through excessive commercial exploitation of animals, often by industrial concerns which have less knowledge and appreciation of the requirements of animals than does the farming community in general.