Search Results:　 1-20 of 5669

Ahammad Muslah U. , Miyazato Tomoko , Nishino Chiaki 他

Journal of poultry science 50(1), 74-82, 2013-01-00

Zhao Yan , Toda Masakuni , Hou Jilun 他

… Sperm of hyper-triploid males did not exhibit active progressive motility and major populations of spermatozoa or spermatozoon-like cells were detected in triploid and hexaploid ranges. … Motile haploid spermatozoa were very few in sperm from hyper-triploid males. … Viable progeny occurred in the cross between normal wild-type diploid female and hyper-tetraploid males, but androgenotes induced by fertilization of UV-irradiated eggs with sperm of hyper-tetraploid males were inviable hyper-diploid. …

Fisheries science 78(6), 1219-1227, 2012-11-00

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Goto Rie , Saito Taiju , Takeda Takahiro , Fujimoto Takafumi , Takagi Misae , Arai Katsutoshi , Yamaha Etsuto

… Male germline chimeras possessed a testis and a contralateral empty testis that contained some sperm in the tubular lumens. …

Developmental Biology 370(1), 98-109, 2012-10-01

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伊藤 潤哉

Journal of mammalian ova research 29(4), 146-154, 2012-10-00

Ichushi Web

Hayakawa Hiroyuki

Journal of mammalian ova research 29(3), 119-123, 2012-10-00

KOBAYASHI MAKITO , YORITSUNE TOMOHISA , SUZUKI SHOHEI , SHIMIZU AYAMI , KOIDO MIKA , KAWAGUCHI YUTARO , HAYAKAWA YOUICHI , EGUCHI SAYAKA , YOKOTA HIROFUMI , YAMAMOTO YOSHIKAZU

… During the spawning period, the courtship behavior of males to females started early in the morning and spawning (egg release and sperm release) was observed in the morning. …

NIPPON SUISAN GAKKAISHI 78(5), 922-933, 2012-09-15

J-STAGE CrossRef References (37)

兼子 智

日本医師会雑誌 141(6), 1249-1252, 2012-09-00

KISAKIBARU Yosihumi

生物教育 53(1), 36-40, 2012-08-31

References (11)

Sasanami Tomohiro , Sugiura Kenichi , Tokumoto Toshinobu , Yoshizaki Norio , Dohra Hideo , Nishio Shunsuke , Mizushima Shusei , Hiyama Gen , Matsuda Tsukasa

Reproduction 144(4), 423-431, 2012-08-02

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PARK Yoo-Jin , MOHAMED El-Sayed A. , OH Shin-Ae , YOON Sung-Jae , KWON Woo-Sung , KIM Heung-Ruil , LEE Myeung-Sik , LEE Kichoon , PANG Myung-Geol

… To predict the fertility of frozen-thawed bull spermatozoa, a sperm penetration assay (SPA) using zona-free hamster oocytes was optimized, and the assay results were compared with data from field fertility expressed as the non-return rate (NRR). … To increase sperm penetration, the spermatozoa were pre-incubated and coincubated with oocytes in media containing various concentrations of heparin (0 to 50 μg/ml). … Coincubation with 10 μg/ml heparin showed the highest sperm penetration (P<0.05); …

Journal of Reproduction and Development 58(4), 461-466, 2012-08-01

J-STAGE CrossRef References (38)