Funding for this research was provided by:
Irish Department of Agriculture, Food and the Marine Research stimulus fund (11/S/107)
Received: 7 February 2017
Accepted: 26 February 2018
First Online: 2 March 2018
: All data was collected using non-invasive methods. All research was carried out in accordance with EU Directive 2010/63/EU for animal experiments and the study abided by the guidelines of the institutional research ethics committee.
: Not applicable
: The authors declare that they have no competing interests.
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