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Cryptosporidiosis.

Pamela R F Adkins1

  • 1Department of Veterinary Medicine and Surgery, University of Missouri, 900 E Campus Drive, Columbia, MO 65211, USA.

The Veterinary Clinics of North America. Food Animal Practice
|February 27, 2022
PubMed
Summary
This summary is machine-generated.

Cryptosporidiosis, caused by Cryptosporidium parvum, is a common diarrheal disease in young dairy calves. Management practices like concrete flooring and utensil cleaning can reduce disease risk.

Keywords:
CryptosporidiumDiarrheaManagementPathophysiologyPreweaned calf

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Area of Science:

  • Veterinary Medicine
  • Parasitology
  • Animal Health

Background:

  • Cryptosporidiosis is a significant cause of diarrhea in preweaned dairy calves.
  • Cryptosporidium parvum, a zoonotic species, is prevalent in US dairy calves.
  • The parasite spreads via fecal-oral transmission, with shedding beginning early in life.

Purpose of the Study:

  • To summarize the epidemiology of cryptosporidiosis in dairy calves.
  • To identify risk factors and preventative measures for calf cryptosporidiosis.

Main Methods:

  • Literature review of cryptosporidiosis in dairy calves.
  • Analysis of transmission dynamics and clinical presentation.

Main Results:

  • Calves shed oocysts from 2 days of age, peaking at 14 days.
  • Diarrhea onset is typically 3-4 days post-ingestion.
  • Risk factors include large farms, summer, milk replacer, and early grain feeding.

Conclusions:

  • Cryptosporidiosis poses a substantial health challenge for young dairy calves.
  • Environmental management, including flooring and hygiene, is crucial for disease control.