Funding for this research was provided by:
Ministerio de Economía y Competitividad (AGL2014- 52906R)
Received: 10 July 2017
Accepted: 3 January 2018
First Online: 17 January 2018
Ethics approval and consent to participate
: This work was approved by the Spanish National Research Council (CSIC) Ethics Committee, with project number 09–7–15-278 of the Regional Ministry of Agriculture and Fisheries and Rural Environment (Junta de Andalucía, Spain), according to the Spanish and European legislation (RD 53/2013, and Decision 2012/707/UE). The retrospective analysis is exempt from ethics approval from the institutional animal care and use committee.
: Not applicable.
: The authors declare that they have no competing interests.
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