Pregnancy diagnosis in the ewe by intrarectal Doppler.
D000818:Animals; D005260:Female; D005318:Fetal Heart; D005865:Gestational Age; D006326:Heart Auscultation; D006339:Heart Rate; D008297:Male; D008722:Methods; D011247:Pregnancy; D011258:Pregnancy Tests / Q000295:instrumentation / Q000662:veterinary*; D011674:Pulse; D012756:Sheep; D014463:Ultrasonography