AI Article Synopsis
- The study explored how seasonal changes impact the development of porcine oocytes in a lab setting, particularly in relation to atmospheric temperatures.
- It found that the blastocyst rate was significantly higher in winter (31.1%) compared to other seasons (19.7-23.5%), indicating that colder temperatures are beneficial for embryo development.
- The research concluded that while porcine embryos can be produced year-round, winter is the optimal season for high production efficiency in Obihiro, Hokkaido, Japan.
Article Abstract
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.
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| http://dx.doi.org/10.1262/jrd.09-217h | DOI Listing |
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