Semen collection and eval Flashcards
What is semen and what is it composed of?
composed of spermatozoa that comes from the testes and seminal plasma that comes from the accessory sex glands
Most commonly __ is used for sperm collection in Bulls and the sperm rich fraction will be ___
EEJ, cloudy/white
Semen collection in a ram can be __ or __, you may need __
AV, Electroejaculator, sedation
semen collection in boar is often done by a __ or ___ under anesthesia
gloved hand, electroejaculator
stallion semen collection is often accomplished by __
training the male to mount a phantom or female in estrus
dog semen collection is often done by __ or a __ and the sperm you’re most interested will look __
manual stimulation, teaser, milky
what 4 things do we look at on semen evaluation?
- gross appearance
- volume/sperm concentration (AV)
- sperm motility
- morphology
bull semen can slightly vary in color (looking yellow) because of __ or it may be contaminated with urine
riboflavin
mass motility class depends on __ and __
individual sperm motility and concentration of sample
to assess sperm viability use a __ stain. __ sperm exclude the stain and look white while __ sperm take up the stain and are the same color as the background
vital, live, dead
sperm concentration
calculation of sperm per mililiter of ejaculate
sperm morphology is the __ thing to look at. Make sure you u use the __ magnification
most important, highest
primary abnormalities come from __ in the testis and result in __, midpiece and __ defects
spermatogenesis, head, severe tail
secondary abnormalities arise within the epididymis during __ resulting in __, __ and __
storage/maturation, detached heads, distal droplet, and mild tail defects
compensable sperm morphology is typically not __ while non-compensable has non-viable sperm __ with normal sperm
competing
