1. 
   perosis
   A nutritional disease of young birds (e.g., chicks and turkeys) characterised by shortening and thickening of the limb bones and a deformity known as 'slipped tendon,' overcrowding, confinement, and wire floors without roosts are predisposing factors. ... Origin: pero-+ G. -osis, condition ... (05 M...
   Found op http://www.mondofacto.com/facts/dictionary?perosis
   
   
2. 
   perosis
   (from the article `feed`) ...essential for animals, and the usual diets for all farm animals supply sufficient quantities. A lack of manganese may cause the nutritional ...
   Found op http://www.britannica.com/eb/a-z/p/46
   
   
3. 
   perosis
   perosis 1. Malicious mutilation. 2. A malformation of the tarsal joint of poultry. This is associated with a deficiency of manganese or an excess of calcium and phosphorus.
   Found op http://www.wordinfo.info/words/index/info/view_unit/1614/
   
   

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