Table 1. Overall information on 300 periestrous periods from 227 dairy cows diagnosed using the speculum or Metricheck method.
| Diagnosis | n | Distribution of parity (%) |
Average DIM | Median BCS (IQR) | Reproductive performance (%) |
||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2– | IR a) | CR b), c) | PR c) | |||||
| Urovagina-negative d) | 282 | 27.7 | 72.3 | 181.7 ± 119.8 | 2.75 (2.75–3.0) | 84.9 | 38.1 | 32.2 | |
| Urovagina-positive d) | 18 | 11.1 | 88.9 | 170.8 ± 127.5 | 2.75 (2.5–2.75) | 83.3 | 13.3 | 11.1 | |
| PVD-negative e) | 272 | 27.9 | 72.1 | 177.4 ± 120.6 | 2.75 (2.75–3.0) | 89.3 | 36.6 | 32.5 | |
| PVD-positive e) | 28 | 14.3 | 85.7 | 217.1 ± 110.7 | 2.75 (2.5–2.75) | 42.9 * | 36.4 | 14.8 | |
| VDS 2 | 11 | 0 | 100 | 214.4 ± 126.4 | 2.75 (2.5–2.875) | 72.7 | 50.0 | 36.4 | |
| VDS 3–5 | 17 | 23.5 | 76.5 | 218.9 ± 103.4 | 2.75 (2.5–2.75) | 23.5 * | 0 | 0 * | |
| Total | 300 | 26.7 | 73.3 | 181.1 ± 120.1 | 2.75 (2.75–3.0) | 84.8 | 36.6 | 30.9 | |
a) Estruses in which ET was conducted (n = 11) were excluded from the analysis. b) Estruses in which AI was not performed (n = 44) were excluded. c)AIs lacking information on pregnancy (n = 7) were excluded. d) Urovagina was diagnosed using the speculum method as the gold standard. e) PVD was diagnosed using the Metricheck method as the gold standard. Asterisks indicate statistical significance compared with PVD-negative cows: * P < 0.01. DIM, days in milk; BCS, body condition score; IQR, interquartile range; IR, insemination rate; CR, conception rate; PR, pregnancy rate; PVD, purulent vaginal discharge; VDS, vaginal discharge score.