PDF《Theriogenology》

编辑： 鱼饵虫 2019-08-30

3 were de?ned as viable embryos, whereas only grades

1 and

2 were classi?ed as freezable embryos. All embryo searching and grading procedures were performed by a single treatment-blind technician. Experiment 2dFourteen lactating Holstein cows (>

40 DIM) were housed at the Dairy Cattle Research Center........

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