Exam 1: Bovine Pregnancy Diagnosis Flashcards
(39 cards)
What is the main reason to pregnancy check cows?
To ID open cows
for economic purposes
Transrectal palpation is used from
______ days of gestation to term
30
The direct method of retraction of the uterus is called
Hooking (the ventral intercornual ligament)
Indirect methods of uterus retraction include
Grasping the cranial edge of the broad ligament
or the
Sweeper method
What are the 4 cardinal signs of pregnancy?
Fetal membrane slip
Amniotic vesicle
Placentomes
Fetus
This is the earliest cardinal sign of pregnancy
Fetal membrane slip
Fetal membrane slip is palpable from ____ -____ days
30 - 90 days
The amniotic vesicle (a turgid vesicle)
is felt in the pregnant horn and is
first palpable at _____ days
but difficult to palpate at ______ days
first palpable- ~32 days
difficult after ~55 days
You can use the diameter of the amniotic vesicle to
gauge ___________
gestational age
maternal caruncle + fetal cotyledon = _______
placentome
Placentomes are first palpable around ______ days
80
There are about ________ placentomes
arranged in 4 rows
120
You can use the size of a placentome to gauge gestational age.
If you feel DIME sized placentomes, how many days is the cow?
90 days
You can use the size of a placentome to gauge gestational age.
If you feel NICKEL sized placentomes, how many days is the cow?
120 days
You can use the size of a placentome to gauge gestational age.
If you feel QUARTER sized placentomes,
how many days is the cow?
150 days
Always feel at least ______ placentomes before coming
to a conclusion about gestational age
3
The fetus is first palpable at ________ of gestation
55 - 65 days
Descent of the fetus begins at ______ days
70 days
Descent of the fetus is complete at _____ days
150
Ascent of the fetus begins at ______ days
210
Ascent of the fetus is complete at ______ days
240
A mouse-sized fetus is ______ days old
60 days
A cat-sized fetus is _____ days old
120
At _____ months old, the fetus is the size of a doberman
7 months (210 days)
