Copulatory behavior unaccompanied by ovulation in the Japanese monkey (Macaca fuscata)Hideo Nigi; Shin-ichi Hayama; Ryuzo Torii · 1990

Periovulatory Time Courses of Serum LH in the Japanese Monkey (<I>Macaca fuscata</I>)Nigi, Hideo; Torii, Ryuzo · Experimental Animals · 1991

Urine collection in the common marmoset (Callithrix jacchus) and its applicability to endocrinological studiesRyuzo Torii; Makoto Moro; David H. Abbott; Hideo Nigi · 1998

Birth of the Japanese Monkey (Macaca fuscata) infant following in-vitro fertilization and embryo transferRyuzo Torii; Yoshihiko Hosoi; Yoshiyuki Masuda; Akira Iritani; Hideo Nigi · 2000

Serum chorionic gonadotropin, progesterone, and estradiol-17βlevels during pregnancy in the common marmoset,Callithrix jacchusRyuzo Torii; Hideo Nigi; Hitoshi Koizumi; Yoshikuni Tanioka · 1989

Rise in age of sexual maturation in male Japanese monkeys at Takasakiyama in relation to nutritional conditionsHideo Nigi; Shin-ichi Hayama; Ryuzo Torii · 1989

The Artificial Fecundation in Japanese Monkeys (<I>Macaca fuscata</I>) by Induced Ovulation and Artificial Insemination in Nonmating SeasonTORII, Ryuzo; NIGI, Hideo · Experimental Animals · 1992