Therio notes

Question 1

chains used in dystocia are called…

Answer 1

Obstertric chains

Question 2

What is the hook instrument used in dystocia?

Answer 2

Krey hook

Question 3

What is the bar with a little notch on it called?

Answer 3

T-bar obstetric chain handle

Question 4

What is the coat hanger triangle looking instrument used for dystocias?

Answer 4

moore’s obstetric handle

Question 5

what is the metal bar with two small holes at each end called?

Answer 5

de-torsion or rode

Question 6

What is the wooden bar called?

Answer 6

wooden dowel (used for applying the de-torsion bar)

Question 7

What are used to go into the orbit of the calf and pull it?

Answer 7

double blunt eye hooks aka Vienne scissor eye hooks

Question 8

what is the wire passer called?

Answer 8

shriever wire saw introducer or passer (open holes on each end)

there is also a Hauptner wire saw introducer or passer which does not have open holes at each end but rather one large closed ball at one end

Question 9

what are the cornified cells?

Answer 9

Anuclear and superifical

Question 10

what are the non-cornified cells?

Answer 10

intermediate and parabasal, look like fried eggs

Question 11

you examine the following cytology, what stage is this:

intermediate cells, some cornified cells, RBCS

Answer 11

Proestrus

Question 12

you examine the following cytology, what stage is this:

ALL cells are cornified

Answer 12

estrus

Question 13

you examine the following cytology, what stage is this:

dramatic shift from cornified cells back towards intermediate/parabasal, WBCS

Answer 13

diestrus

Question 14

you examine the following cytology, what stage is this:

parabasal and intermediate cells

Answer 14

anestrus

Question 15

what is the 2-2-2 rule?

Answer 15

2 nanograms per day of progesterone > LH surge

2 days later she ovulates

2 days later you breed her

Question 16

what are the 4 reflexes to determine if a calf is alive during a dystocia?

Answer 16

1. suckle reflex
2. corneal reflex
3. perianal/sphincter tone
4. withdrawal reflex

Question 17

how should you place the chains on a calf’s leg during a dystocia?

Answer 17

half-hitch over the dorsal aspect above and below the fetlock

if you are unable to get both half hitches, get the lower one (so you will not break a growth plate)

Question 18

how should you manipulate a calf if it presenting in an abnormal position during a dystocia?

Answer 18

push the calf entirely back into the uterus, then move the limbs into the correct position MEDIALLY to avoid uterine or vaginal tears

Question 19

after the calf is born, following dystocia, what should you check the mother for?

Answer 19

trauma, tears, twins

Question 20

what are the 3 P’s?

Answer 20

PRESENTATION - relation of spinal axis of fetus with respect to dam

POSITION - relation of dorsum of fetus to quadrant of maternal pelvis

POSTURE - relation with respect to extremities

Question 21

what is considered retained fetal membranes in a cow?

Answer 21

retained if not passed within 12 hours of calving

Question 22

how do you perform a vaginal cytology?

Answer 22

1. swab cranial vagina
2. roll on slide
3. stain with Diff-Quick

Question 23

what does a progesterone of 2.0 indicate?

Answer 23

LH surge

Question 24

what does a progesterone of 4-6 indicate?

Answer 24

ovulation

Question 25

what does a progesterone of 10 indicate?

Answer 25

fertile

Question 26

how long does live cover semen survive in the tract? what about chilled? what about frozen?

Answer 26

5-7 days in the tract 3-4 days chilled 18-24 hours frozen

Question 27

what are the minimum requirements for semen?

Answer 27

30% motility and 70% morphology normal, at least