The advantagens, the principles, the technic and the updated status of pregnancy diagnosis in the cow, mare and ewe, by ultrasound scanning are presented in this paper. The early diagnosis twin pregnancies, evaluation of embryo viability and inocuity are some of the advantages of ultrasonography in domestic species. Pregnancy diagnosis through ultrasound scanning allows safe early recognition of this state with imediate positive ecnonomic benefits.
pregnancy diagnosis; ultrasound scanning; cow; mare; ewe