What can cause a decrease in WBC?
normal = 4-12000
Mastitis, metritis, peritonitis, pneumonia, septicemia
what can cause a neutrophilia?
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
Incubation of Anaplasma lasts how long?
ends with increase in temp when 1% cells infected
when do you see CS with anaplasma
main CS associated with anaplasma
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
T/F cattle show CS with Lyme disease
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
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
Gold standard to test for BLV
T/F need to screen all bulls for BLV
T/F H2O intoxication causes intravascular hemolysis
hypophosphatemia causes what (most common anemia)
post-partum hemoglobinuria - intravascular hemolysis
what CS are seen with Cu deficiency
skin coat, microcytic, hypo chromic anemia, D
what kind of murmur do you hear with a ventricular septal defect?
holosystolic murmur - see poor growth, lethargy
what breed is predisposed to bovine leukocyte adhesion deficiency
Brisket disease is caused by what
high altitude causing hypoxic vasoconstriction
what side heart signs do you see with Brisket disease
What toxins associated with Cardiomyopathy?
Ionophores, cassia, phalaris, Vit E/Selenium, Cu, sulfur deficiency, lymphosarcoma
pericarditis is caused by what
penetrating FB in reticulum
what heart sounds do you hear with pericarditis
splashing, muffled, gallop rhythm
A fib is associated with what
chronic udder edema
Omphalitis is what?
infection of umbilicus after birth - septicemic infection
what is in the umbilicus?
urachus, umbilical vein, 2 umbilical arteries
how do you prevent omphalitis?