Received: 15 March 2019
Accepted: 4 December 2019
First Online: 18 December 2019
Ethics approval and consent to participate
: This study was conducted on the experimental farm of CREA (Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria, Research Centre for Animal Production and Acquaculture, Bella (PZ)), a research institute authorized by the Italian Ministry of Health to use farm animals for experimental purposes (DM 26/96–4). Animal management and care followed the recommendations 408 of European Union directive 86/609/EEC.
: Not applicable.
: The authors declare that they have no competing interests.