bovine abortion

Question 1

Early embryonic death

Answer 1

260=viable, or sitllborn

Question 2

eed

Answer 2

more common in dairy cattle. energy requirements.

Question 3

dairy v. beef

Answer 3

dairy- non infectious- chromosomal abnormalities, drugs, nutrient deficiency, toxic plants, heat stress. beef cattle- infectious

Question 4

IBR/BHV1

Answer 4

vx good. respiratory, abortion, repro disorders, neonatal septicemia. autolyzed abortions, pathognomonic sign is focal necrosis on liver, intranuclear inclusion bodies. serology. give modified live vx if not pregnant. kill vx okay in pregnant.

Question 5

BVD

Answer 5

gi mucosal diease. repro, congenital dz, mummified abortions, cytopathic infections deadly. ear notch test.

Question 6

lepto

Answer 6

urine or abortion products. invades mucus membranes. serovards-interrogans, borgpetersenii, kirschneri. silver staining, fat in urine. vx.

Question 7

maitenance chronic lepto serovars

Answer 7

endemic infection, persistent infection, asymptomatic, high susceptibility

Question 8

incidental acute lepto serovar

Answer 8

high dose for infection, acute, leptosiuria. chronic more common for infertility and abortion

Question 9

vibriosis

Answer 9

campylobacter. endometritis. extended estrus.

Question 10

protozoal infections

Answer 10

tritrichomonas, neospora, sarcocystis, toxoplasma. pyometra. neospora-major abortions in dairy cattle. tramsit to fetus.

Question 11

mycotic abortions

Answer 11

thickened, leathery cotyledon

Question 12

toxic plants

Answer 12

ponderosa pine needles- estrogenic compounds that cause abortions. common in 3rd trimester. locoweed- alkaloid increased pgf2a secretion, affects CL, chrioallantois, neurons. broomweed/snakeweed- saponin. abortion, premature. moldy sweet clover- fetal hemorrhage.