Forestomach diseases- BV Flashcards
Simple indigestion CS
depression, decr appetite, decr rumen contractions, rumen distension
Severe indigestion CS
sudden change in attitude, decr app/milk prod, recumbency, dehydration, complete rumen stasis w/gas cap
Rumen acidosis or lactic acidosis indigestion CS
anorexia, dehydration, incr HR/RR, recumbency, complete GI stasis, bloat, coma
Free gas bloat affects:
Recurrent prob in animals on high grain diet +/- eructation failure/ rumen outflow failure
o Calves <6 mo: recurrent prob, possible after bronchopneumonia
How do you differentiate death d/t bloat from bloat d/t death?
Bloat line:
death d/t bloat: will see pale thoracic esophagus and congested cervical esophagus
bloat d/t death: esophagus will be uniform
Condition that has left flank distension, but no ping?
Frothy bloat
What medication is used to treat frothy bloat?
poloxalene ( anti-foam agent)
CS Vagal indigestion & what is it?
disruption to forestomach emptying
CS: reduced feed intake w/ normal H2O consumption, decr milk prod, bradycardia, variable rumen sounds, “papple” (pear on one side/apple on the other) or L shape from behind
Why do you see hypochloremic metabolic alkalosis with vagal indigestion?
- caused by duodenal outflow obstruction, which chloride reduced in blood n/c not reabsorbed & chloride increased in rumen b/c reflux.
- HCO3 also increased in blood d/t blocked duodenum
What type of cattle is predisposed to LDA?
most common in lactating dairy cattle in first 3 mo after calving
Most relevant clinical sign of LDA?
Acute decrease in milk production & left sided ping
Most cattle SX are preformed on the right side except?
rumenotomy
R ping DDx:
RDA, abomasal volvulus, cecal dilation/volvulus, gas
What direction does the abomasal volvulus normally occur?
most commonly counterclockwise; pylorus ends up near reticulum
In abomasal volvulus- high heart rate & anion gap means?
poorer outcome/ prognosis
