Presentation Photo courtesy Dr. Kendra Freeman A 2.5-year-old female intact corgi presents for dystocia. Her last puppy was born eight hours prior to presentation. 1) At what time in gestation is it best to complete an ultrasound to look for canine pregnancy? a. 18-20 days b. 20-35 days c. 25-35 days 2) When can fetal skeletons be reliably detected on radiographs? a. 30-34 days gestation b. 34-40 days gestation c. 42-45 days gestation 3) What time in gestation is best to perform a litter count in a pregnant bitch? a. >35 days b. >40 days c. >50 days d. >55 days