Received: 6 March 2018
Accepted: 14 November 2018
First Online: 4 December 2018
: All the blood samples analyzed in this study were taken from the brachial veins of the animals. These animals, and the scientific investigations described herein, are therefore not to be considered as experimental animals per se, as defined in EU directive 2010/63 and subsequent national application texts. As a consequence, we did not seek ethical review and approval of this study as one including the use of experimental animals. All animals were reared in compliance with national regulations pertaining to livestock production and according to procedures approved by the French Veterinary Services.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.