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Colour‐Doppler ultrasound imaging as a laparoscopy substitute to count corpora lutea in superovulated sheep
Author(s) -
Pinto PHN,
Bragança GM,
Balaro MFA,
Arashiro EKN,
Santos GB,
Souza GN,
SouzaFabjan JMG,
Da Fonseca JF,
Brandão FZ
Publication year - 2018
Publication title -
reproduction in domestic animals
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.546
H-Index - 66
eISSN - 1439-0531
pISSN - 0936-6768
DOI - 10.1111/rda.13089
Subject(s) - laparoscopy , ultrasound , doppler effect , doppler ultrasound , biology , andrology , medicine , gynecology , surgery , radiology , physics , astronomy
Contents This study evaluated colour‐Doppler ultrasound imaging ( UI ) as a substitute for laparoscopy to count the corpora lutea ( CL ) in superovulated sheep. Twenty‐five Santa Ines ewes were superovulated three times at 21‐day intervals. Corpora lutea were counted by colour‐Doppler UI ( CL DOPPLER ) 6 days after each superovulation and confirmed by laparoscopy ( CL LAP ) 12 hr later. The mean number of CL was similar for both techniques (2.1 ± 2.5 vs. 2.1 ± 2.7 for CL DOPPLER and CL LAP , respectively) with a significant positive correlation ( r = .94; r 2 =.89). Colour‐Doppler UI effectively evaluated the ovarian response in superovulated ewes and efficiently identified animals that did not respond to superovulation.