Transrectal ultrasound of the combined thickness of the uterus and interplacentome region in healthy pregnant Holstein cows

Publication date: Available online 30 May 2019Source: The Veterinary JournalAuthor(s): Jennifer Koziol, George MooreAbstractCombined thickness of the uterus and placenta (CTUP) has been used for many years to assess fetal well-being and placental health in the mare and most recently the combined thickness of the uterus and interplacentome region (CTUIR) in water buffalo. The aim of this study was to develop normal reference ranges in regards to the CTUIR in 25 Holstein cows throughout pregnancy. The CTUIR was measured every 30 days from 60 days of gestation until 270 days of gestation. Measurements were obtained by transrectal ultrasonography with the position of the ultrasound probe being placed cranial and lateral to the cervix. CTUIR measurements increased every month beginning with an average of 4.6 mm at 60 days and culminating with an average thickness of 11.7 mm at 270 days of gestation. The greatest increases in CTUIR thickness occurred during the first and second trimesters.
Source: The Veterinary Journal - Category: Veterinary Research Source Type: research