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pregnancy determination
positive signs of pregnancy, rule of 3 palpation, fetal palpation, ELISA test
positive signs of pregnancy
detectable CL, udder development, cervical seal, anestrus
rule of 3
palpate three placentomes; or two ovaries and one placentome (??)
fetal palpation
feel for asymmetry of horns, cotyledons, caruncles
ELISA test
test for pregnancy specific protein B; test 28-31 days after breeding
bovine insemination dosage
10E6 live normal cells
75%
sexed semen conception rate compared to unsexed AI
3-4%
how much more DNA X-chromosomes hold than Y-chromosomes
sexed semen bovine dosage
2-4 million live motile cells
320.4 degrees F
temperature of liquid nitrogen