Effects of Seasonal Changes on In Vitro Developmental Competence of Porcine Oocytes
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概要
- 論文の詳細を見る
The aim of this study was to investigate whether seasonal changes affected in vitro developmental competence of porcine oocytes. The relationship between atmospheric temperature and embryonic development of in vitro matured porcine oocytes following intracytoplasmic sperm injection was examined throughout the year. The blastocyst rate (31.1%) in winter (mean atmospheric temperature during December to February: -3.8 C) was significantly higher (P<0.05) than those of other seasons in 2008/2009 (19.7-23.5%; 6.3-17.5 C). The monthly mean blastocyst rates were negatively correlated with the temperatures (r=-0.5944, P<0.05). The results of the present study suggest that porcine embryos could be produced throughout the year, but the in vitro production efficiency was significantly affected by season, i.e., atmospheric temperatures. Furthermore, the results showed that winter is a favorable season for blastocyst production in the region of Obihiro, Hokkaido, Japan.
- 2010-08-01
著者
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WATANABE Hiroyuki
Department of Internal Medicine, Division of Cardiovascular Medicine, Akita University Faculty of Me
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WATANABE Hiroyuki
Laboratory of Animal Reproduction, Obihiro University of Agriculture and Veterinary Medicine
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SUZUKI Yo
Department of Food Production Science, Obihiro University of Agriculture and Veterinary Medicine
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FUKUI Yutaka
Department of Food Production Science, Obihiro University of Agriculture and Veterinary Medicine
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Suzuki Yo
Laboratory Of Animal Reproduction Obihiro University Of Agriculture And Veterinary Medicine
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Suzuki Yo
Department Of Biochemistry And Applied Biosciences Faculty Of Agriculture University Of Miyazaki
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Fukui Y
Obihiro Univ. Agriculture And Veterinary Medicine Obihiro Jpn
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Fukui Y
Laboratory Of Animal Reproduction Obihiro University Of Agriculture And Veterinary Medicine
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Fujise Yoshihiro
Inst. Cetacean Res. Tokyo Jpn
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Watanabe H
Laboratory Of Animal Reproduction Obihiro University Of Agriculture And Veterinary Medicine
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Fukui Yutaka
The Institute Of Cetacean Research
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Fukui Yutaka
Department Of Food Production Science Obihiro University Of Agriculture And Veterinary Medicine
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Fukui Y
The Institute Of Cetacean Research
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Watanabe Hiroyuki
Department Of Cardiology Akita University School Of Medicine
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Watanabe Hiroko
Laboratory Of Animal Genetics And Reproduction Obihiro University Of Agriculture And Veterinary Medi
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Fukui Yutaka
Department Of Animal Science Obihiro University Of Agriculture And Veterinary Medicine
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Watanabe Hiroyuki
Department Of Agricultural Chemistry Ibaraki University
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