Ultrasonographic Evaluation of Exogenous Isobutane Gas in the Mammary Gland of Cows

Authors

  • Steven S. Trostle Departments of Surgical and Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison
  • Robert T. O'Brien Departments of Surgical and Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison
  • Jenks Britt Departments of Surgical and Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison
  • Kenneth R. Waller Departments of Surgical and Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison

DOI:

https://doi.org/10.21423/aabppro19995498

Keywords:

mammary glands, udder appearance, show industry, chemical infusion, gas infusion, ultrasonographic

Abstract

Infusion of chemicals or gases into the mammary glands of dairy cattle has been used to alter the appearance of udders in cattle used in exhibitions. People who fit dairy cattle to enhance the gross appearance of the udder by making it appear larger and fuller have used these agents. The ethical issues surrounding this practice are controversial and the purebred dairy cattle show industry is considering methods to detect these practices. In the past, studies using thermography and ultrasonography were inconclusive in determining if agents placed in the udder could be detected.1,2 The purposes of this study were to determine the ultrasonographic appearance of exogenous isobutane gas infused into the udder. And to determine the effects of volume and pressure used to infuse exogenous isobutane gas and exogenous isobutane gas on duration of ultrasonographic appearance in the udder.

Cover image of the 33rd Conference Proceedings: Herd of Holstein cattle grazing in a field. Large barn and silos in background. Yellow background.

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Published

2020-03-23

Issue

1999

Section

Research Summaries 1