Lecture 8 Flashcards
What are the 3 ways to collect semen?
Digital manipulation
Electroejaculation
Artificial vagina
What animals is digital manipulation mostly used in?
Pigs and dogs
What do you notice after digitally manipulating a dog?
Engorged bulbous glandis
Which animal can electroejaculation not be used in?
Horses
Whats the disadvantage of using electrojaculation in bulls?
Has a larger volume and lower sperm number
What is the most commonly used method in cattle, horses, sheep, goats…..?
Artificial vagina
How do you calculate total sperm?
Multiply concentration by ejaculate volume
How much sperm fills up a mini straw?
250 microliters (10-12 millions sperm)
At what temp can semen be stored at for several years?
-198 degrees
When is the best time to AI swine?
0-12h before ovulation for fresh semen
0-4h after ovulation for frozen semen
What is laparoscopic AI?
Inject semen through punctures made in the abdomen straight into the uterus
Which animals should be given chilled/fresh semen?
Rabbits and dogs