Toshio Tsubota

Seasonal changes in spermatogenesis and testicular steroidogenesis in the male black bear <i>Ursus americanus</i>

Toshio Tsubota, Lesley A. Skalla, Hiroaki Nitta et al. · Reproduction · 1997 · 113 citations · Full text

Life Sciences, Endocrinology, Physiology +17

Sex Identification by Alternative Polymerase Chain Reaction Methods in Falconiformes

Hideyuki Ito, Akiko Sudo-Yamaji, Motoko Abe et al. · ZOOLOGICAL SCIENCE · 2003 · 100 citations · Full text

Life Sciences, Biology, Zoology +13

Changes in Serum Progesterone Levels and Growth of Fetuses in Hokkaido Brown Bears

Toshio Tsubota, Yoshiyuki Takahashi, Hiroshi Kanagawa · Bears Their Biology and Management · 1987 · 81 citations

Life Sciences, Animal Sciences, Endocrinology +14

Evidence that bears are induced ovulators

William R. Boone, Becky B. Keck, J.C Catlin et al. · Theriogenology · 2003 · 80 citations

Life Sciences, Animal Sciences, Physiology +10

Sex Identification of Japanese Black Bear, Ursus thibetanus japonicus, by PCR based on Amelogenin Gene.

Kaori Yamamoto, Toshio Tsubota, Takeshi Komatsu et al. · Journal of Veterinary Medical Science · 2002 · 77 citations · Full text

Life Sciences, Genetics, Zoology +17