Genetic parameters of milk ELISA scores for Johne's disease.

  title={Genetic parameters of milk ELISA scores for Johne's disease.},
  author={S A Attalla and Anthony J Seykora and J B Cole and Bradley J Heins},
  journal={Journal of dairy science},
  volume={93 4},
The objective of this study was to estimate genetic parameters of antibody response to Mycobacterium avium ssp. paratuberculosis using routinely collected Minnesota Dairy Herd Improvement milk ELISA tests. After all edits, 25,809 tests from 21,514 Holstein cows in 282 Johne's positive herds were available for analysis. The Johne's test results were analyzed both as a binary trait (positive or negative) and as a linear trait as the transformed ELISA optical density [ln(OD)]. Significant fixed… CONTINUE READING


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