Funding for this research was provided by:
Academy of Finland (250633, 250677)
National Natural Science Foundation of China (31272413)
Received: 5 November 2016
Accepted: 19 December 2017
First Online: 29 January 2018
Ethics approval and consent to participate
: All procedures for the feeding experiment and sheep sampling were approved by the Southern Finland Animal Experiment Committee (approval no. ESAVI/5027/04.10.03/2012).
: Not applicable.
: The authors declare that they have no competing interests.
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