68th annual meeting of the European Federation of Animal Science : book of abstracts, no. 23 (2017), Tallinn, Estonia, 28 August - 1 September 2017 / editor E Strandberg ; reviewers G Savoini, Hermanus A. M Spoolder.. et al. . Wageningen :  Wageningen Academic Publishers , 2017 . 512 s . ISBN 978-80-8686-312-9 . ISSN 1382-6077 .