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and body, and then switch the probe to uterine horns as the following figure shows:
Probe position for uterine and ovaries examination
5.
To measure the fetus body diameter, select a vertical section first, that is a section from two side
to the neck, chest and abdomen. Body diameter can be acquired when the GA is between 60 to
150 days.
The measurement method of ody diameter is given below:
BL measurement
6.
Confrim the distance value as per distance measurement methods and the corresponding data
display behind “G·A”.
7.
●
BOVINE-SL
：
Calculate the gestation age according to bovine SL
1.
Keep the cow standing.
2.
Put the probe against the abdomen side center, shift it a little bit left or right and hold it closely
against the skin. Clean the abdomen skin if there is mud to ensure a clear display of the
abdominal pelvic structure.
3.
The maximum vertical axile of the stomachi should be displayed on the screen. With the time
going on, futus stomachi long axile increases regularly. The measuremenet method is given
below:
1
Rectum
2
Uterine horns
3
Uterine bodies
4
Ovaries
5
Vaginas
6
Bladders
Body diameter
