About the Authors

J. Kuhl

juliane.kuhl@vetmeduni.ac.at

Affiliations Graf Lehndorff-Institut for Equine Science, Vetmeduni Vienna, Neustadt (Dosse), Germany, Artificial Insemination and Embryo Transfer, Vetmeduni Vienna, Vienna, Austria

K. F. Stock

Affiliation Vereinigte Informationssysteme Tierhaltung w.V. (vit), Verden (Aller), Germany

M. Wulf

Affiliation Graf Lehndorff-Institut for Equine Science, Vetmeduni Vienna, Neustadt (Dosse), Germany

C. Aurich

Affiliation Artificial Insemination and Embryo Transfer, Vetmeduni Vienna, Vienna, Austria

Competing Interests

Vereinigte Informationssysteme Tierhaltung w.V provided salary to K.F. Stock. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: JK CA. Performed the experiments: JK MW. Analyzed the data: KFS JK CA. Contributed reagents/materials/analysis tools: JK MW. Wrote the paper: JK CA.