Artificial Insemination/Embryo Transfer

Question 1

AI is most popular/most effective in ________ _______.

Answer 1

Dairy cattle

Question 2

Advantages of AI?

Answer 2

-Widespread use of outstanding sires
- overcome incompatibilities with male and female
- lessens dangers
-reduces spreading of diseases
- more uniform crop of offspring

Question 3

What is estrus synchronization?

Answer 3

All females will be ovulating at same time which leads to easy AI and easy tracking of cycle

Question 4

(def) A water jacket used for semen collection, only horses

Answer 4

Artificial vagina

Question 5

(def) Gloved hand acts as cervix, mainly boars

Answer 5

Mechanical manipulation

Question 6

Electrical stimulation should never be used on which animal?

Answer 6

Stallion

Question 7

What is looked for during the microscopic evaluation of sperm?

Answer 7

Concentration, motility (ability to move efficiently), and morphology (size and shape)

Question 8

The addition of _______ helps prevent freezing and expanding of sperm cells

Answer 8

Glycerol

Question 9

Most semen is stored in?

Answer 9

Straws stored in liquid nitrogen

Question 10

Thaw semen for ____ seconds in _____ ______.

Answer 10

10-30 seconds
Warm water

Question 11

Where do you inseminate a cow?

Answer 11

Uterine body at tip of cervix

Question 12

Where do you inseminate a sow/mare/ewe?

Answer 12

Cervix

Question 13

What is the prostaglandis form of estrus synchronization?

Answer 13

Causes CL to die at certain time and start estrus (not great because you need a functional CL)

Question 14

What is CIDR?

Answer 14

Releases progesterone into vagina, best synchronization device

Question 15

What is MGA estrus synchronization?

Answer 15

Feeds progesterone, stop feeding and you get animal in heat

Question 16

Signs of heat in a female?

Answer 16

Stands still to be mounted, marker animals, teaser animals.
Mare: aggressive
Ewe: playing with rams
Sow: stands still when you touch her back

Question 17

(def) Use superovulation to produce multiple ova, fertilize them and flush them

Answer 17

Embryo transfer

Question 18

(def) Depositing semen in the uterine body, low probability of conception

Answer 18

Transcervical AI

Question 19

(def) Semen injected directly into lumen of each uterine horn, highest rate of success

Answer 19

Laparoscopic AI

Question 20

(T/F) You can flush small ruminants like cattle

Answer 20

False, you must go in surgically, pull out uterus, and flush eggs

Question 21

Collect embryos ____ days after breeding

Answer 21

6-7

Question 22

Give a shot of _______ to terminate any leftover embryos

Answer 22

Lutalyse