From: Investigation of bovine abortion and stillbirth/perinatal mortality - similar diagnostic challenges, different approaches
Trimester
Month of gestation
Foetuses (No.)
%
First (early)
2
73
0.7
3
298
2.9
Second (mid)
4
841
8.2
5
1393
13.7
6
2069
20.3
Third (late)
7
2858
28.0
8
2661
26.1