Test 1: 10 postpartum cow 1

Question 1

chlamydiosis can cause — abortions when

Answer 1

sporadic
last trimester
* if infection late in gestation will give birth to weak calf

Question 2

how does chlamydia abortus cause abortion

Answer 2

bacteria
* spread by feces, secretions and aborted material
* cause endometritis
* sporadic abortions in last trimester
* retained membranes

Question 3

lesions causes by chlamydiosis appear where

Answer 3

intercotyledonary areas of the placenta
* the fetus will have ascites, edema and enlarged liver

Question 4

campylobacteriosis sp venerialis is spread by — and causes abortion —

Answer 4

veneral disease
only 10% of the time, in first trimester

Question 5

tritrichomoniasis infection can lead to —

Answer 5

pyometra
abortion is rare

Question 6

how is campy or tritrich spread

Answer 6

veneral
males are lifelong asymp carriers

Question 7

how does campy/tritrich effect females

Answer 7

• infection causes low grade endometritis
• this can cause abortion after maternal rec, inflammation will kill embryo
• female takes a long time to come back into estrus 25-90 days
• can fight off infection and eventually get pregnant
• immunity only lasts a year, and can get reinfected
• delayed pregnancy and increased interservice intervals

Question 8

how to prevent campy/tritrich in cows

Answer 8

• AI- test and cull bulls if needed
• treat semen with antibiotics
• vaccinate

Question 9

neosporosis causes — in cows

Answer 9

2nd term abortion- can cause abortion storm
* if calf survives can be infected by vertical transmission

Question 10

tranmission of neosporosis

Answer 10

dog normal host, cow can spread by vertical transmission to its offspring

Question 11

calves born with neosporosis infection present with

Answer 11

underweight and/or have neurological signs, including ataxia, impaired proprioception, or an inability to rise. Neurogenic flexion or hyperextension of the limbs may occur. Exophthalmia, asymmetry of the eyes, and hydrocephalus have also been reported.

However, most calves that are congenitally infected are clinically normal.

Question 12

how to test for neosporosis

Answer 12

• serology- immunofluorescent antibody test
• ELISA
• cysts in neural tissue

Question 13

how to treat neosporosis

Answer 13

no treatment
* test and cull
* decrease exposure to dog poop- prevent tranmission

Question 14

bovine herpesvirus 1 causes

Answer 14

infectious bovine rhinotracheitis (IBR)
infectious pustular vulvovaginitis (IPV)

Question 15

bovine herpes virus causes — abortions

Answer 15

4-8 months

Question 16

IBR (infectious bovine rhinotrachetitis) presents as

Answer 16

caused by bovine herpes
* nasal and ocular discharge, coughing and trachypnea
* reduced appetite and weight loss
* Animals may become asymptomatic latent carriers directly after infection or after recovery from clinical illness.

Question 17

IVP infectious pustular vulvovaginitis presents as

Answer 17

bovine herpes virus
* veneral disease
* symptoms 1-2 days post breeding
* ulcers on vaginal mucosa
* discomfort and straining
* resolves in 1-2 weeks
* similar lesions on bulls penis

Question 18

fetus aborted from bovine herpes virus will present as

Answer 18

• severaly autolysed- liquefactive necrosis of kidney and focal in liver
• viral inclusion bodies
• PCR of liver to confirm

Question 19

how to diagnosis bovine herpes virus

Answer 19

PCR
- of aborted fetal liver
- vaginal swabs

Question 20

how to treat bovine herpes

Answer 20

vaccinate
* isolate and reduce stress

Question 21

most common cause of mycotic abortion

Answer 21

aspergillus fumigatus

Question 22

asperigillus fumigatus infection causes

Answer 22

late term abortion

Question 23

how does cow get infected with aspergillus fumigatus infection

Answer 23

mold
* Infection might occur through respiratory tract, digestive tract, ascending via uterus, or udder.
* More common on housed animals and during the winter
* Spoiled feed is one of the most common causes.

Question 24

fetus with aspergillus infection presents with

Answer 24

fetus- white lesions
placenta- both cotyledons and intercarunclar areas effected- necrosis and leathery

Question 25

how to diagnosis aspergillus infection

Answer 25

mycotic/mold
* cause late term abortion
* fetus has white lesions
* fungus found in lesions
* culture- antifungal antibodies, metabolites and antigens in fetal fluids

Question 26

how to treat aspergillous infection

Answer 26

mycotic/mold
* prevent spread of mold
* ↑ ventilation
* clean food
* antifungal treatments