From: Transmission of border disease virus from a persistently infected calf to seronegative heifers in early pregnancy
Heifer
OD value (%)
SNT BDV
SNT BVDV
Quotient of BDV and BVDV titres
1
119
152
≤ 4
≥ 38
2
89
215
≥ 53
3
274
304
8
38
4
182
431
27
16
5
216
> 512
> 32
6
110
> 64