title: Effect of dietary protein content on behavior in dogs.
abstract: OBJECTIVE
  To determine the effect that feeding diets containing a low (17%), medium (25%), or high (32%) protein content would have on behavior in dogs.
  
  
  METHODS
  Prospective, controlled study.
  
  
  METHODS
  12 dogs with dominance aggression, 12 dogs with hyperactivity, 12 dogs with territorial aggression, and 14 control dogs without behavioral problems.
  
  
  METHODS
  Dogs were fed each of the diets for a 2-week period, and owners were instructed to score their dogs' behavior on a daily basis.
  
  
  RESULTS
  Behavior of the dogs with dominance aggression, dogs with hyperactivity, and control dogs was unchanged by the dietary manipulations. Territorial aggression was significantly reduced when dogs were fed the low- or medium-protein diet, compared with territorial aggression when fed the high-protein diet. Post hoc analysis indicated that this effect was attributable to a marked reduction in aggression in a subset of the group (n = 7) in which territorial aggression was a result of fear.
  
  
  CONCLUSIONS
  Results of this study suggest that a reduction in dietary protein content is not generally useful in the treatment of behavior problems in dogs, but may be appropriate in dogs with territorial aggression that is a result of fear.
authors.affiliation: Department of Surgery, School of Veterinary Medicine, Tufts University, North Grafton, MA 01536, USA.
authors.forename: N H
authors.initials: NH
authors.lastname: Dodman
authors.forename: I
authors.initials: I
authors.lastname: Reisner
authors.forename: L
authors.initials: L
authors.lastname: Shuster
authors.forename: W
authors.initials: W
authors.lastname: Rand
authors.forename: U A
authors.initials: UA
authors.lastname: Luescher
authors.forename: I
authors.initials: I
authors.lastname: Robinson
authors.forename: K A
authors.initials: KA
authors.lastname: Houpt
mesh_terms: D000374:Aggression / Q000502:physiology*; D000818:Animals; D001522:Behavior, Animal / Q000502:physiology*; D004044:Dietary Proteins / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D004283:Dog Diseases / Q000178:diet therapy*; D004285:Dogs / Q000523:psychology*; D004291:Dominance-Subordination; D005239:Fear; D006948:Hyperkinesis / Q000178:diet therapy*; D013731:Territoriality
chemical_list: D004044:Dietary Proteins