Male Hatano low-avoidance rats show more active sexual behavior with lower plasma testosterone than high-avoidance rats

The Journal of Veterinary Medical Science
Airi NakayamaMaiko Kawaguchi

Abstract

Two inbred strains of Sprague-Dawley rats, known as the Hatano high- and low-avoidance animals (HAA and LAA respectively), have been selectively bred for high versus low rates of avoidance responses in a shuttle-box avoidance task. To investigate differences in the sexual behavior of Hatano rats, male HAA, LAA and SD rats were tested from 12 to 15 weeks of age. LAA rats exhibited more rapid and frequent sexual behavior than HAA or SD rats, and such differences increased with repeated sexual experience. Plasma testosterone levels tended to be lower in LAA rats than in HAA or SD rats, suggesting that active sexual behavior in LAA rats is not related to these levels. Strain differences in mating behavior between HAA and LAA rats may be caused by emotional responses to novelty.

References

Mar 16, 2004·Reproduction : the Official Journal of the Society for the Study of Fertility·M ShirotaR Ohta
May 15, 2007·Hormones and Behavior·Elaine M Hull, Juan M Dominguez
Mar 15, 2012·Neuroendocrinology·Rebecca L CunninghamMarilyn Y McGinnis

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Citations

Dec 12, 2018·Experimental Animals·Ryo Ohta, Kohich Kojima
Mar 6, 2019·Journal of Neuroscience Methods·Mario Buenrostro-JáureguiLuis Miguel Rodríguez-Serrano
Jun 2, 2021·Environmental Science and Pollution Research International·Yasmina M Abd-ElhakimTamer S Imam

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