TABLE 5.
Percentage of animals seropositive for serovar Dublin among 170 aborting cows, using various tests and cutoff values
| Serovar Dublin status of aborted fetus | Cutoff value | ELISA
|
Agglutination test
|
|||
|---|---|---|---|---|---|---|
| LPS | GP | GM-DAS | O | H | ||
| Culture positive (n = 25) | Low | 76.0 | 68.0 | 64.0 | 66.7 | 76.2 |
| High | 56.0a | 60.0a | 64.0a | 23.8 | 62.9a | |
| Culture negative (n = 145) | Low | 15.3b | 11.0b | 11.7b | 3.1 | 2.9 |
| High | 4.9c | 3.4 | 4.8c | 0.8 | 0.7 | |
a
Different (P < 0.01) from seroprevalence with O-agglutination test in same row.
b
Different (P < 0.01) from seroprevalence with H- and O-agglutination test in same row.
c
Different (P < 0.05) from seroprevalence with H- and O-agglutination test in same row.