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Literature

Post-Coital Lh Surge In The Koala (Phascolarctos Cinereus)

SD Johnston,1 P O'Callaghan2, K Nilsson2 and JD Curlewis3 

1 School of Animal Studies, The University of Queensland, 4072.

2 Lone Pine Koala Sanctuary, Jesmond Rd, Fig Tree Pocket, 4069.

3 School of Biomedical Sciences, The University of Queensland, 4072.

ABSTRACT

Previous studies of the koala oestrous cycle have shown that the luteal phase appears to be induced by coitus (1) and that this phenomenon is dependent on the degree of penile thrusting behaviour (2). To date such evidence is primarily based upon observations of a post-coital rise in progestogen. This study reports preliminary findings that characterise the LH surge following copulation in the female koala and represents part of a broader research program to confirm a reflex ovulatory pattern in this species.

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  • 2013
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