Effect of ambient temperature on number of embryos obtained during embryo transfer process

The objective of the project was to evaluate the effect of the ambient temperature on the uterus flushing out during embryo transfer process. It was generally speaking about a comparison of the donors flushed out during the hot weather with the donors flushed out during the cold weather. It had regard to the number of the embryos obtained and to the ambient temperature. All numbers of the embryos obtained by the flushing out from the 33 milking cows were registered during the embryo transfer process. The three groups of the milking cows were measured during the high ambient temperature (24 degrees C and higher), the medium ambient temperature (from 4.1 degrees C to 23.9 degrees C) and the low ambient temperature (4 degrees C and lower) in the heat time. This research has been done on the dairy cow breed, specifically on the Holstein breed. However the results are easily extrapolated to the other dairy breeds. The experiment was focused on the embryos presented in the flushed liquid. All flushing out results were written down to the Excel MS and analyzed by the SPSS Statistics 17.0; exactly by the One-way ANOVA. The embryos obtained were found to fluctuate with the ambient temperature, being the lowest just during the high ambient temperature, high during the medium ambient temperature, high again at the time of the low ambient temperature during the heat phase of the cycle. The low ambient temperature had no significant effect to the embryos obtained. As the high ambient temperature had significant negative effect to the embryos obtained, it seems to be necessary to protect milking cows against the high ambient temperature during the heat time.