Fluid Therapy & Dehydration in Calves with Diarrhea
By Andre Teixeira, DVM, PhD, Veterinary Affairs Director, Jaguar Health
Despite ongoing efforts to control neonatal diarrhea, it remains a major concern in the U.S. beef and dairy industries, with a high impact on animal welfare and profitability. Fluid therapy is still the hallmark treatment for neonatal calf diarrhea.
A study conducted in the early 1970s comparing non-diarrheic calves with calves affected with spontaneous diarrhea reported that 71.4% of the weight lost in a diarrheic calf is due to fecal water loss. Therefore, assessing dehydration and accurately identifying a calf that requires fluid therapy is very important. Diarrheic calves can lose significant amounts of body fluids and, consequently, blood electrolytes.
In field conditions, dehydration in neonatal calves can be measured by the degree of enophthalmos (eye recession into the orbit of the eye) and neck skin-tent duration.
Finally, it is extremely important to follow electrolyte preparation instructions, because incorrectly prepared electrolytes can be harmful to the calf. Oral solutions with high osmolarity should receive special attention if mixed with milk. Additionally, milk should be offered even if a calf is under fluid therapy. Calves suffering from diarrhea would benefit from the energy provided by the milk offered during feeding.
Dehydration can be successfully treated, and providing a dehydrated calf with the necessary electrolytes and nutrients is key to restoring its hydration status.
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