Exposure of C57BL/6J male mice to an electric field improves copulation rates with superovulated females.
It is well-known that there are considerable strain differences in the relative copulation rates between male and superovulated female mice. In particular, the C57BL/6J strain of mice has a lower rate of successful copulation. We examined the effect of exposure to an electric field on sexual behavior in C57BL/6J male mice. When C57BL/6J males were exposed to a 50 Hz, 45 kV/m electric field for 30 min per day for 11 days and placed in a cage with a superovulated female of the same strain, the successful copulation rates of males was significantly improved compared with unexposed males (P<0.05). These results suggest that the exposure of C57BL/6J male mice to an electric field improves their sub-fertility activity in mating with superovulated females.
Hori
Takuya
T
Research Unit for Functional Genomics, National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Japan.
Yamsaard
Thicomeporn
T
Ueta
Yoshiko Yanagimoto
YY
Harakawa
Shinji
S
Kaneko
Etsushi
E
Miyamoto
Akio
A
Xuan
Xuenan
X
Toyoda
Yutaka
Y
Suzuki
Hiroshi
H
D000818:Animals; D006063:Chorionic Gonadotropin / Q000494:pharmacology; D003307:Copulation / Q000502:physiology / Q000528:radiation effects*; D004558:Electric Stimulation / Q000295:instrumentation; D004574:Electromagnetic Fields; D005260:Female; D006064:Gonadotropins, Equine / Q000494:pharmacology; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL / Q000502:physiology*; D008813:Mice, Inbred ICR; D013480:Superovulation / Q000502:physiology
D006063:Chorionic Gonadotropin; D006064:Gonadotropins, Equine