Search results for "Mouse killing"
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The Influence of Sex, of Castration in New-Born Males and of Androgen Treatment in New-Born Females on the Mouse-Killing Behaviour of the Rat
1979
AbstractThe results we have got on the mouse-killing behaviour of the rat point out the remarkable percentage difference between control males and control females, between integral males and males castrated at birth, and between normal females and females under the effects of androgens.Such results make us believe that the appearance of the killer behaviour is affected by the presence of testosterone in the first days of life of the rat.
A research on the action of testosterone propionate and of ciproterone acetate on the mouse-killing behaviour of the adult rat.
1979
AbstractData demonstrate exactly that testosterone favour above all the killing behaviour of castrate males at birth in comparison with control males while ciproterone acetate turns out to be more effective in diminishing the killing behaviour of males having integral testicle and of androgenized females at birth in comparison with castrated males.The results point out that the killing behaviour of rats is affected by the presence of testosterone in the first days of life, and in the grown-up animal.