H.‐O. Hoppen

The secret of truffles: A steroidal pheromone?

R. Claus, H.‐O. Hoppen, H. Karg · Cellular and Molecular Life Sciences · 1981 · 101 citations

Life Sciences, Biology, Entomology +11

Cyclical endometrial steroid hormone receptor expression and proliferation intensity in the mare

H. Aupperle, S. Özgen, Heinz‐Adolf Schoon et al. · Equine Veterinary Journal · 2000 · 74 citations

Medicine, Endocrinology, Gynecology +16

Advancing the time of ovulation in the mare with a short‐term implant releasing the GnRH analogue deslorelin

Curtis L. Meinert, J. F. S. SILVA, I. KROETZ et al. · Equine Veterinary Journal · 1993 · 63 citations

Veterinary Medicine, Animal Sciences, Equine Medicine +8

Inhibition of gonadotrophin release in mares during the luteal phase of the oestrous cycle by endogenous opioids

Claudia Behrens, Jörg Aurich, E Klug et al. · Reproduction · 1993 · 60 citations · Full text

Medicine, Animal Sciences, Endocrinology +15

Blood plasma concentrations of oestradiol-17β, testosterone and testosterone/oestradiol ratio in dogs with neoplastic and degenerative testicular diseases

Reinhard Mischke, D. G. Meurer, H.‐O. Hoppen et al. · Research in Veterinary Science · 2002 · 48 citations

Medicine, Endocrinology, Andrology +15