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Article History

Received: 13 March 2018

Accepted: 22 June 2018

First Online: 3 July 2018

Ethics approval and consent to participate

: Piglets were cared for in accordance with the principles outlined in the European Convention for the Protection of Vertebrate Animals Used for Experimental and Other Scientific Purposes. The animal experiments were approved by the Committee on Animal Experiments of the Lower Saxony State Office for Consumer Protection, Food Safety and Animal Protection (permit no. 33.14–42,502–04-12/0965 and 33.9–42,502–04-12/0965).

: Not applicable.

: The authors declared that they have no competing.

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