A comparison of rectal palpation and ultrasonography for the evaluation of superovulatory response in beef heifers

Makek, Z.; Herak, M.; Cergolj, M.; Barac-Getz, I.; Rudan, D.

Acta Veterinaria Hungarica 44(4): 467-476

1996


ISSN/ISBN: 0236-6290
PMID: 9141283
Document Number: 461798
Superovulation was induced in 14 Simmental heifers with PMSG (Folligon). Seven days after superovulation the ovaries were examined by ultrasonography and rectal palpation. Ultrasonography, using a B-mode ultrasound instrument with a 5 MHz linear transrectal transducer, was more reliable than rectal palpation. More follicles were identified (P<=0.049) and follicles were more easily distinguished from cysts by ultrasound scanning than rectal palpation.

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