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Table 1 Number of records and embryonic mortality rate (%) at each period

From: Loss of maternal ANNEXIN A10 via a 34-kb deleted-type copy number variation is associated with embryonic mortality in Japanese Black cattle

2nd AI

Number of records

Embryonic mortality rate (%)

18–29 D

769,103

23.00

30–60 D

592,243

21.97

61–90 D

462,098

16.91

91–140 D

383,979

8.47

141 D–parturition

351,455

3.30

  1. Embryonic mortality was defined by cows that received a second round of AI at 18–29 days (D), 30–60 D, 61–90 D, 91–140 D, and 141 D–parturition after the 1st AI