Article
Effect of Season and Exposure to Heat Stress on Oocyte Competence in Holstein Cows
1 Feb 2002
Abstract excerpt
Two experiments were conducted to evaluate seasonal variation in oocyte competence in Holstein cows and to test whether oocyte quality in summer is affected by the magnitude of heat stress. In the first experiment, ovaries of Holstein cows were collected from a slaughterhouse and used to harvest oocytes over 1 yr (n = 18 replicates). After in vitro maturation, fertilization, and culture, proportions of oocytes...
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