CSV Mixes in the US

michaelundinaeichhorn · 24-02-2010, 15:10

The results in the German study concerning behaviour differ in some aspects:

Behavioural Changes in bitches after castration::
higher consistency: 51 %
more active behaviour: 22 %
lethargic behaviour: 15 %
less aggression against other bitches: 12 %
increased aggression against other bitches: 9 %
increased aggression against other dogs in general: 11 %

The higher consistnency seen in 51% of spayed bitches has its origin in the fact that the hormonel caused cyclus fluctuations don´t exist any longer. These cyclic fluctuaions are also seen in women.This fact alone shouldn´t be a reason to spay a bitch.
In bitches that underwent early spaying (before the first heat) there is also a high risk of increased fear behaviour. This can show up in separation anxiety or increased flight tendency.
Bitches that have underwent castration during or shortly after heat show a higher amount of Behavioural changings like aggression or depression.

Behavioural changes in males:
higher consistency: 63 %
increased obidience: 34 %
decreased aggression against other males: 34 %
mounting by other males: 19 %
lethargic behaviour: 13 %
uneasiness (uncertanty) with other dogs: 7 %
decreased aggression against family members: 7 %
decreased aggression agains strangers: 2 %

The improvement in obedience may result partly that situations when the male hasen´t been obidient because of the smell of a bitch will decrease...
In males the changement in aggressiv behaviour seems to be highly dependent of age: Animals that have been castrated in an age of under 6 month and also in an age between 6 - 12 month show are more likely to show aggressiv behaviour agains other dogs in general and show less consistency in behaviour.

Aggressiv Behaviour of both sexes against other dogs and also humans often occurs the first time after castration...
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The last conclusions will differ from the USA because it is quite unusual to castrate males in our country, in most cases it is done because there have already been problems, mostly of aggression. If you look at this fact the changes in aggressiv behaviour are very low.
What has been shown in this study is that castration of males can cause aggression because of higher anxiety in social contacts.

All translated parts a out of the "Bielefelder Studie" by Gabriele Niepel

24-02-2010, 15:10	#1
michaelundinaeichhorn Senior Member Join Date: Sep 2003 Location: Bad Dürkheim Posts: 2,249	The results in the German study concerning behaviour differ in some aspects: Behavioural Changes in bitches after castration:: higher consistency: 51 % more active behaviour: 22 % lethargic behaviour: 15 % less aggression against other bitches: 12 % increased aggression against other bitches: 9 % increased aggression against other dogs in general: 11 % The higher consistnency seen in 51% of spayed bitches has its origin in the fact that the hormonel caused cyclus fluctuations don´t exist any longer. These cyclic fluctuaions are also seen in women.This fact alone shouldn´t be a reason to spay a bitch. In bitches that underwent early spaying (before the first heat) there is also a high risk of increased fear behaviour. This can show up in separation anxiety or increased flight tendency. Bitches that have underwent castration during or shortly after heat show a higher amount of Behavioural changings like aggression or depression. Behavioural changes in males: higher consistency: 63 % increased obidience: 34 % decreased aggression against other males: 34 % mounting by other males: 19 % lethargic behaviour: 13 % uneasiness (uncertanty) with other dogs: 7 % decreased aggression against family members: 7 % decreased aggression agains strangers: 2 % The improvement in obedience may result partly that situations when the male hasen´t been obidient because of the smell of a bitch will decrease... In males the changement in aggressiv behaviour seems to be highly dependent of age: Animals that have been castrated in an age of under 6 month and also in an age between 6 - 12 month show are more likely to show aggressiv behaviour agains other dogs in general and show less consistency in behaviour. Aggressiv Behaviour of both sexes against other dogs and also humans often occurs the first time after castration... -------------------------------------------------------------------------------- The last conclusions will differ from the USA because it is quite unusual to castrate males in our country, in most cases it is done because there have already been problems, mostly of aggression. If you look at this fact the changes in aggressiv behaviour are very low. What has been shown in this study is that castration of males can cause aggression because of higher anxiety in social contacts. All translated parts a out of the "Bielefelder Studie" by Gabriele Niepel