91160
A central aspect of biodynamics is that the farm as a whole is seen as an organism , and therefore should be a largely self-sustaining system , producing its own manure and animal feed .
 animal feed
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 animal feed