Focused ultrasound of the fetus, female and male reproductive tracts, pregnancy, and dystocia in dogs and cats
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RM Fulton
Veterinary Clinics: Small Animal Practice, 2021
vetsmall.theclinics.com
… Normal canine or feline fetal heart rates should be greater than 200 beats/min … fetal cat heart rates often are approximately 265 beats/min 7 , 8 A good rule of thumb has the normal fetal …

