Assessment of gastrointestinal nematode parasitism in dairy calves housed in calf hutches

Authors

  • Anna Walker Department of Pathobiology and Population Medicine, Mississippi State University, Mississippi State, MS 39762
  • Ray Kaplan Department of Infectious Diseases, University of Georgia, Athens, GA 30602
  • Kelsey Paras Department of Infectious Diseases, University of Georgia, Athens, GA 30602
  • David Smith Department of Pathobiology and Population Medicine, Mississippi State University, Mississippi State, MS 39762
  • Min Wang Department of Pathobiology and Population Medicine, Mississippi State University, Mississippi State, MS 39762
  • Amelia Woolums Department of Pathobiology and Population Medicine, Mississippi State University, Mississippi State, MS 39762

DOI:

https://doi.org/10.21423/aabppro20173369

Keywords:

Gastrointestinal nematodes, dairy cattle, grazing cattle, hutch calves, fecal egg count

Abstract

Gastrointestinal nematodes (GIN) are an important cause of morbidity and production losses in cattle. Clinical infection with GIN can cause diarrhea and hypoalbuminemia, but subclinical infections are more prevalent, harder to recognize, and a greater threat to productivity. Emphasis in the dairy industry has been placed on management strategies to mitigate disease and productive losses caused by GIN infections in grazing heifers and adult cattle, but hutch calves have largely been left out of this discussion. Milk-fed dairy calves housed in hutches are presumed not to acquire GIN infection because transmission of GIN is thought to require exposure to a pasture environment and subsequent ingestion of contaminated forage. However, a recent assessment of fecal egg counts (FEC) in hutch calves for another research project revealed calves raised in hutches with unexpectedly high FEC. The objective of this study was to estimate the prevalence and magnitude of GIN in hutch calves on two calf ranches and to evaluate factors associated with the probability for calves to be parasitized.

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Published

2017-09-14

Issue

Section

Research Summaries

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