About the Authors

Andrew C. Kotze

andrew.kotze@csiro.au

Affiliation CSIRO Livestock Industries, St. Lucia, Brisbane, Queensland, Australia

Steven R. Kopp

Affiliation School of Veterinary Science, University of Queensland, Brisbane, Queensland, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: ACK. Wrote the paper: ACK. Contributed ideas, commented on draft manuscript: SRK.