From: Sperm morphology and chromatin integrity in Swedish warmblood stallions and their relationship to pregnancy rates
Stallion
No. mares pregnant/no. mares inseminated
Pregnancy rate (%)
A
27/47
57.4
F
10/12
83.3
G
12/15
80.0
H
8/36
22.2
K
17/25
68.0
Q
9/11
81.8
R
3/5
60.0
T
10/14
71.4
W
2/3
66.7
Y
5/7
Z
27/48
56.3