Update publication information. Toxoplasma gondii threats to the health of one-third of the world's population. Cat is the natural definite host of T. gondii. However, the biological changes of feline small intestine following T. gondii infection remains mysterious event. Protein acetylation modification which is a dynamic and reversible post-translational modification (PTM) plays important roles in regulating various physiological functions. In this study, we used affinity enrichment and high resolution LC-MS/MS to analyze the alteration of acetylation event in feline small intestine infected by Prugniuad (Pru) strain of Toxoplasma gondii.