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Supplemental Information

Additional Information

Competing Interests

Yolanda van Heezik is an Academic Editor for PeerJ.

Author Contributions

Aviva M Stein conceived and designed the experiments, analyzed the data, wrote the paper.

Melanie J. Young conceived and designed the experiments, analyzed the data, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

John Darby contributed reagents/materials/analysis tools.

Philip John Seddon conceived and designed the experiments, wrote the paper, reviewed drafts of the paper.

Yolanda van Heezik conceived and designed the experiments, wrote the paper, reviewed drafts of the paper.

Animal Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

Animal ethics not necessary as this study involved accessing data from a database, so no manipulations were performed.

Data Deposition

The following information was supplied regarding data availability:

The raw data for all analyses of LRS have been supplied as a supplementary file, plus a code file.

The figures in the first table on survival to breed cannot be supplied because they are calculated from data in an entire 30 year database, that requires permission via an MOU to access. We have the necessary permission for this study, but can't provide public access to the entire database. We have provided the raw data for the LRS analyses, which are the core of the paper.

Funding

The authors received no funding for this work.


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