Table 1
Gestational status of dairy cows in artificial insemination (AI) record and confirmation of transrectal ultrasononography examination

NoGroupsAI recordUltrasononography
Number (n)Gestation (%)Number (n)Gestation (%)Sonogram
1Non-pregnant218.18436.36Empty uterine
2Pregnant <1 month (8–24 days)545.45327.27Gestational sac in uterine
3Pregnant 2–3 months (70–90 days)327.27327.27Placenta and fetal in uterine
4Postpartum 2 week (12–14 days)19.1019.10Lochia in uterine
Total11100.0011100.00