Sex of IVM, IVF and IVC Blastocysts Produced from Individual Donor Cows.
-
- TOMINAGA Keiichiro
- Hyogo Agricultural Experimental Institute, Kasai, Hyogo 679-01, Japan
-
- YONEDA Kazuhiro
- Marubeni Shiryo Technical Research Center, Ono, Hyogo 675-13, Japan
-
- UTSUMI Kyozo
- Kyoto University, Kyoto, Kyoto 606, Japan
書誌事項
- タイトル別名
-
- Sex of IVM IVF and IVC Blastocysts Prod
この論文をさがす
説明
This experiment was undertaken to determine if developmental rate to the blastocyst stage and the blastocyst production capacity of donor cows affects embryo sex ratio, and to clarify the relationship between individual donor cows and male sex predominance of embryos that reach blastocyst stage relatively early. In vitro matured (IVM), in vitro fertilized (IVF) and in vitro cultured (IVC) embryos produced separately from donor cows were used. The sex of the embryos at the blastocyst stage was determined by PCR analysis. Although there was no significant difference in the sex ratio of embryos in relation to days after insemination, a higher proportion of male blastocysts was obtained on days 6.5 and 7.0 (59.3% and 58.0%, respectively) than on days 7.5 and 8.0 (50.7% and 49.3%, respectively). No relationship between male predominance and the developmental rate of embryos was found. Nor was there any evidence of a characteristic relationship between the developmental rate and the sex of embryos produced from individual donor cows. However, when donor cows were classified according to the period required for their embryos to reach blastocyst stage, a higher percentage of cows showed a higher male percentage in their embryos on the least number of days after insemination than on later days. This difference also was not significant. Therefore, there is little relationship between embryonic sex and the developmental rate of embryos in cows.
収録刊行物
-
- Journal of Reproduction and Development
-
Journal of Reproduction and Development 42 (1), 35-40, 1996
公益社団法人 日本繁殖生物学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282681311173248
-
- NII論文ID
- 10027318334
-
- NII書誌ID
- AA10936678
-
- ISSN
- 13484400
- 09168818
-
- NDL書誌ID
- 3951176
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDLサーチ
- Crossref
- CiNii Articles
- OpenAIRE
-
- 抄録ライセンスフラグ
- 使用不可