Natural Resources Institute Finland (LUKE), Myllytie 1, Jokioinen, Finland. daniel.fischer@luke.fi.|Natural Resources Institute Finland (LUKE), Myllytie 1, Jokioinen, Finland.|Natural Resources Institute Finland (LUKE), Myllytie 1, Jokioinen, Finland.|Department of Mathematics and Statistics, University of Turku, Turku, Finland.|Lohmann Tierzucht GmbH, Am Seedeich 9-11, Cuxhaven, 27454, Germany.|Lohmann Tierzucht GmbH, Am Seedeich 9-11, Cuxhaven, 27454, Germany.|Natural Resources Institute Finland (LUKE), Myllytie 1, Jokioinen, Finland.