Bovine Cardio Flashcards
What can cause a decrease in WBC?
normal = 4-12000
Mastitis, metritis, peritonitis, pneumonia, septicemia
what can cause a neutrophilia?
chronic abscess
What do you see on a slide with Anaplasma
intracellular basophilic bodies in the RBCs
What passes Anaplasma
insets, arthropods, mechnical
Greatest mortality with Anaplasma is seen with what age?
> 24 months
no signs 1-5 mo
not fatal w/ CS 5-10 mo
1st sign of Anaplasma
anemia
Incubation of Anaplasma lasts how long?
3-8 wks
no CS
ends with increase in temp when 1% cells infected
when do you see CS with anaplasma
developmental stage
4-9 days
main CS associated with anaplasma
105-106 fever
muscle tremors, decreased milk, anemia clear w/ 40-50% infection
main difference btwn anaplasma and babesia
NO hemoglobinuria w. anaplasma
how to test for anaplasma
complement fixation is 96% accurate
capillary is less so
card agglutination is least but quickest an best in field
tx for anaplasma
leave alone and protect heard
no vx so put oxytetracycline in feed
how long does carrier state with Babes last?
1 year, resistant to infection
CS with Babesia
aborion, fever, jaundice, red/brown urine
Most common sign of anthrax
sudden death
T/F cattle show CS with Lyme disease
false
sequela of BLV
adult lymphosarcoma, persistent lympocytosis, non-apparent infection,
how long do you have to wait to see signs of BLV infection?
2 weeks, cattle are natural reservoir
What is needed for transmission?
lymphocyte transfer - horizontal most common way
T/F most cattle are asymptomatic carriers of BLV
True
30% are persistent
5% get enzootic lymphosarcoma
Signs associated with enzootic lymphosarcoma
signs dependent on tumor location and interference w/fxn, multicentriac LN, heart, uterus, abomasum
T/F you see hypercalcemia with BLV
not usually
Gold standard to test for BLV
ELISA
T/F need to screen all bulls for BLV
True
