Table 3. Effect of using different estrus detection on number of AI and reproductive performance in sow (Exp 2).
| Item1) | CON | TRT1 | TRT2 | TRT3 | SE | p-value |
|---|---|---|---|---|---|---|
| Number (n) | ||||||
| Al | 2.17 | 1.53 | 1.42 | 1.93 | 0.32 | 0.06 |
| Performance | ||||||
| Litter birth weight (kg) | 16.13 | 16.83 | 16.53 | 16.67 | 0.39 | 0.24 |
| Total number born per litter (n) | 11.97 | 12.01 | 12.34 | 12.24 | 0.55 | 0.44 |
| Number of born alive per litter (n) | 11.47 | 11.42 | 11.58 | 11.47 | 0.24 | 0.38 |
| Mortality rate | 6.75 | 6.88 | 6.64 | 6.54 | 0.55 | 0.88 |
1)
AI, artificial insemination until fertilization was finished.
CON, visual evaluation; TRT1, standing time; TRT2, vulva temperature; TRT3, body temperature; standard error.