Misao Terada   Yatsuka Horii   Fumio Sato   Kazumi Taniguchi   Tatsuya Hori   Eiichi Kawakami   Toshihiko Tsutsui   Toshio Akimoto   Motoo Shinoda   Toru R. Saito   
Reproductive Medicine and Biology 13(1) 53-58 2014年 [査読有り]
Purpose: Ejaculation in the male dog consists of three fractions. Observation of behavior and measurement of heart rate (HR), and plasma noradrenaline (NA) and adrenaline (Ad) concentrations were researched sequentially, and a fundamental examinat...
Masanori Kobayashi   Tatsuya Hori   Eiichi Kawakami   
JOURNAL OF VETERINARY MEDICAL SCIENCE 75(9) 1249-1252 2013年9月 [査読有り]
In healthy male dogs, peripheral plasma testosterone (T), prostaglandin E-2 (PGE(2)) and seminal plasma PGE(2) levels were measured before, during and after ejaculation, and semen quality was examined after oral administration of PGE(2). Plasma T ...
Khongsak Thiangtum   Khongsak Thiangtum   Tatsuya Hori   Eiichi Kawakami   
Thai Journal of Veterinary Medicine 42 447-453 2012年12月 [査読有り]
Preservation of canine spermatozoa at 5°C is a helpful method for dog breeding management. However, in many species, oxidative damage due to generation of reactive oxygen species (ROS) and long term storage which specifically cause DNA damage, and...
T. Hori   T. Tsutsui   Y. Amano   P. W. Concannon   
REPRODUCTION IN DOMESTIC ANIMALS 47 47-51 2012年12月 [査読有り]
Contents This study investigated the duration of the interval between the onset of vulval bleeding at pro-oestrus and ovulation estimated from the plasma progesterone concentration in a large number of beagle bitches. The influence and association...
T. Tsutsui   T. Hori   F. Takahashi   P. W. Concannon   
REPRODUCTION IN DOMESTIC ANIMALS 47 43-46 2012年12月 [査読有り]
Contents As a step towards elucidation of the timing and mechanism of the determination of the number of ovulated ova in dogs, we excised one ovary 2, 5 and 8 days after the beginning of vulval bleeding and examined whether the lost ovulation func...