id	keyword
ct-11239	sperm
ct-11239	fertility
ct-11239	bulls
ct-11239	semen
ct-11239	reprod
ct-11239	dna
ct-11239	theriogenology
ct-11239	et al
ct-11239	membrane
ct-11239	motility
ct-11239	proteins
ct-11239	spermatozoa
ct-11239	biol
ct-11239	analysis
ct-11239	anim
ct-11239	number
ct-11239	flow
ct-11239	acrosome
ct-11239	viability