Effects of castration on problem behaviors in male dogs with reference to age and duration of behavior

Jacqueline C. Neilson, Robert A. Eckstein, Benjamin Hart

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

Objective - To determine whether 9 problem behaviors in adult male dogs were affected by castration and to examine the influence of age and duration of problem behavior on behavioral effects of castration. Design - Cohort study. Animals - 57 male dogs > 2 years old at the time of castration that had ≥ 1 of the targeted problem behaviors. Procedure - Data were collected by telephone contact with owners to identify dogs that had ≥ 1 problem behavior before castration and to estimate the improvement (ie, decrease) in the objectionable behaviors after castration. Problem behaviors of interest included urine marking in the house, mounting, roaming, fear of inanimate stimuli, aggression toward human family members, aggression toward unfamiliar people, aggression toward other dogs in the household, aggression toward unfamiliar dogs, and aggression toward human territorial intruders. Results - Effects of castration on fear of inanimate stimuli or aggression toward unfamiliar people were not significant. For urine marking, mounting, and roaming, castration resulted in an improvement of ≥ 50% in ≥ 60% of dogs and an improvement of ≥ 90% in 25 to 40% of dogs. For remaining behaviors, castration resulted in an improvement of ≥ 50% in < 35% of dogs. Significant correlations were not found between the percentage of improvement and age of the dog or duration of the problem behavior at the time of castration. Clinical Implications - Castration was most effective in altering objectionable urine marking, mounting, and roaming. With various types of aggressive behavior, including aggression toward human family members, castration may be effective in decreasing aggression in some dogs, but fewer than a third can be expected to have marked improvement. Age of the dog or duration of the problem behavior does not have value in predicting whether castration will have a beneficial effect.

Original languageEnglish (US)
Pages (from-to)180-182
Number of pages3
JournalJournal of the American Veterinary Medical Association
Volume211
Issue number2
StatePublished - Jul 15 1997

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behavior problems
Castration
castration
Dogs
Aggression
aggression
duration
dogs
urine
Urine
fearfulness
Fear
Problem Behavior
cohort studies
Telephone
households
Cohort Studies

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Effects of castration on problem behaviors in male dogs with reference to age and duration of behavior. / Neilson, Jacqueline C.; Eckstein, Robert A.; Hart, Benjamin.

In: Journal of the American Veterinary Medical Association, Vol. 211, No. 2, 15.07.1997, p. 180-182.

Research output: Contribution to journalArticle

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abstract = "Objective - To determine whether 9 problem behaviors in adult male dogs were affected by castration and to examine the influence of age and duration of problem behavior on behavioral effects of castration. Design - Cohort study. Animals - 57 male dogs > 2 years old at the time of castration that had ≥ 1 of the targeted problem behaviors. Procedure - Data were collected by telephone contact with owners to identify dogs that had ≥ 1 problem behavior before castration and to estimate the improvement (ie, decrease) in the objectionable behaviors after castration. Problem behaviors of interest included urine marking in the house, mounting, roaming, fear of inanimate stimuli, aggression toward human family members, aggression toward unfamiliar people, aggression toward other dogs in the household, aggression toward unfamiliar dogs, and aggression toward human territorial intruders. Results - Effects of castration on fear of inanimate stimuli or aggression toward unfamiliar people were not significant. For urine marking, mounting, and roaming, castration resulted in an improvement of ≥ 50{\%} in ≥ 60{\%} of dogs and an improvement of ≥ 90{\%} in 25 to 40{\%} of dogs. For remaining behaviors, castration resulted in an improvement of ≥ 50{\%} in < 35{\%} of dogs. Significant correlations were not found between the percentage of improvement and age of the dog or duration of the problem behavior at the time of castration. Clinical Implications - Castration was most effective in altering objectionable urine marking, mounting, and roaming. With various types of aggressive behavior, including aggression toward human family members, castration may be effective in decreasing aggression in some dogs, but fewer than a third can be expected to have marked improvement. Age of the dog or duration of the problem behavior does not have value in predicting whether castration will have a beneficial effect.",
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