Semen and indices of quality Flashcards
Define daily sperm production
total number of spermatozoa produced by testes per day
Define daily sperm output
number of spermatozoa ejaculated over a period of time
What are some advantages and disadvantages of using an artificial vagina or dummy female for semen collection
Advantages: closest to natural breeding, can stimulate libido
disadvantages: cost , risk of injury
What are some advantages and disadvantages of using electro-ejaculation for semen collection
Advantages: efficient, safe, controlled
Disadvantages: discomfort or pain, risk of injury if used incorrectly, stress, requires training and skill
What conditions could result in lower sperm output and reduced fertilisation ability?
variocele (enlarged scrotal veins -> increased temp)
Hormonal imbalances
Trauma
Surgery
Genetics
Obstructions
Infections
Toxins
Obesity
Meds
what factors influence the epididymis transit time?
sperm production rate
hormonal regulation
physical activity
temp
sperm quality
age
obstructions
smooth muscle cells
What is sperm vitality?
live:dead ration
