Detection of Gestational Age and Days Before Parturition Using Ultrasonography in Canines

Abstract

Twenty pregnant bitches admitted to Central Veterinary Hospital Srinagar for routine pregnancy check-up were included in the present study. All the bitches were scanned twice, before and after 40th day of gestation. Before 40 days of gestation, gestational age (GA) was calculated using gestational sac diameter (GSD) and after 40 days of gestation, gestational age was calculated using head diameter (HD). Days before parturition (DBP) was calculated as: (65 days – GA). Less than 40 days of gestation the average GSD ranged between 1.2 to 3.3 cm with mean 2.39 ± 0.15 cm and GA ranged between 27.2 to 39.8 days with mean 34.34 ± 0.90 days and DBP ranged between 25.2 to 37.8 days with mean 30.66 ± 0.90 days. More than 40 days of gestation the average HD ranged between 1.5 to 2.4 cm with mean 1.92 ± 0.06 cm and GA ranged between 42.5 to 56 days with mean 48.87 ± 1.0 days and DBP ranged between 9 to 22.5 days with mean 16.12 + 1.0 days.