過剰排卵処置を施したウシより回収された胚の形態と大きさ〔英文〕

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概要

• 論文の詳細を見る

• A total of 691 normal embryos were recovered from 183 superovulated donor cows on the 5th and 6th days after the first insemination, and were examined for their morphology and size in relation to their developmental stage. There was no significant difference in the thickness of the zona pellucida, the diameter of the cell mass, and the overall diameter of the embryos among zygotes, 2-, 4-, 8- and 16-cell embryos, and morulae. In the blastocyst stage, however, the diameter of the cell mass and the overall embryo diameter were significantly greater and the zona pellucida was significantly thinner than in the earlier-stage embryos. The volume of the blastomere significantly decreased from zygote to morula in proportion to the increase in the number of blastomeres. The volume of the cell mass of 2-cell embryos was decreased by about 30% compared with that of zygotes and no increase in the volume of the cell mass was observed during the progression from 2-cell stage to morula. The diameter of the cell mass and the overall diameter of morulae recovered on the 6th day after the first insemination were significantly greater than those of morulae recovered on the 5th day.

• 社団法人日本獣医学会の論文
• 1991-04-15

著者

• NAKAGAWA Akira

  Department of Biosciences, Teikvo University

• Takahashi Yoshiyuki

  Departments of Pediatric Cardiology and Surgery, The Heart Institute, Tokyo Women's Medical College

• Takahashi Yoshihiro

  Department Of Applied Physics School Of Engineering Tohoku University

• Nakagawa A

  Pharmacovigilance Department Astellas Pharma Inc.

• SUZUKI Tatsuyuki

  Department of Veterinary Sciences, Yamaguchi University, Yamaguchi 753, Japan

• Inoue Tadahiro

  National Institute Of Animal Health

• SUGA Tetsuyuki

  Department of Veterinary Medicine, Faculty of Agriculture, Yamaguchi University

• KANAGAWA Hiroshi

  Department of Theriogenology, Faculty of Veterinary Medicine, Hokkaido University

• Takahashi Y

  Tanaka Solid Junction Project Erato Japan Science And Research Corporation

• Takahashi Y

  Laboratory Of Theriogenology Department Of Clinical Sciences Graduate School Of Veterinary Medicine

• Nakagawa Akira

  Pharmacovigilance Department Astellas Pharma Inc.

• Kanagawa H

  Hokkaido Univ. Sapporo Jpn

• Suga T

  Yamaguchi Univ. Yamaguchi Jpn

• Kanagawa Hiroshi

  Department Of Biomedical Science Ontario Veterinary College University Of Guelph

• Suzuki T

  Iwate Univ. Morioka Jpn

• Takahashi Yoshiyuki

  Department Of Anesthesiology Dokkyo Medical University

• Takahashi Y

  Department Of Molecular & Materials Sciences Kyushu University

• Nakagawa Akira

  Department Of Applied Chemistry Faculty Of Engineering Yamaguchi University

• SUZUKI Tatsuyuki

  Department of Veterinary Medicine, Faculty of Agriculture, Yamaguchi University

• Kanagawa Hiroshi

  Laboratory of Theriogenology, Department of Veterinary, Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University

• 中川 明

  Department of Veterinary Medicine, Faculty of Agriculture, Yamaguchi University

• Takahashi Yoshiyuki

  Department Of Anesthesia And Pain Medicine, Dokkyo Medical University School Of Medicine

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