s; normalized collision energy 30%; and intensity threshold 1.6 × 105.

2.7  MS Data Analysis
The original MS/MS raw data were analyzed using the Proteome Discoverer Software 2.1 (Thermo Fisher Scientific, San Jose, CA, USA). The data were searched against the database of UniProt Sus scrofa (February 26, 2017, containing 26 103 sequences, http://www.uniprot.org/proteomes/UP000008227, version: Uniprot-proteome-UP000008227-Sus