Breeding Soundness Exam Flashcards
The term for producing and maintaining a supply of sperm
spermatogenesis
To detect if a female is in estrus males usually look for ___
pheromones
Flehmen response
when a male smells a females urine, then puts his nose in the air to detect if there are the right pheromones present for breeding
Refractory period
the period in time after ejaculation that a male is not capable of an erection or another ejaculation
(T/F) The environment affects a males ability to mate
True
If he is introduced to new females he will experience more pressure to spread his genetics
Preputial prolapses are bad because…
they expose the animals penis to the open environment which can lead to becoming in contact with unwanted bacteria
Importance of scrotal circumference
- determines amount of sperm produced
- heritable
- related to sperm quality
- indicator of age at puberty of daughters
Scrotal circumference is not related to ___
libido
The larger the testicles the (earlier/later) the daughter will go into heat
earlier
Sperm output is about equal to ___ weight
testies
What are the minimum circumferences for the testicles of juvenile and mature bulls
juvenile = 30cm mature = 34cm
Two important factor that are looked at during semen examination
motility
morphology
What factor is not that important during a semen exam
volume
Sperm head abnormalities can lead to…
decreased motility and fertility
Sperm are usually ___ degrees F
90
