LONDON, May 14 (Reuters) - Euronext said on Tuesday that revenue and income in the first quarter of this year rose 8% to a record 401.9 million euros ($434.78 million), as the pan-European stock exchange completed its multi-year integration of the Milan Exchange that it bought in 2021.

Euronext, which operates exchanges in Amsterdam, Brussels, Dublin, Lisbon, Milan, Oslo and Paris, said in a statement that it has moved Italian derivatives trading onto its main platform.

"This migration was the last in the ambitious integration plan of Italian markets onto the Euronext single trading platform, and was completed less than three years after the acquisition of the Borsa Italiana Group," Euronext said.

Profit before income tax rose 50.3% to 203.3 million euros in the first quarter, helping to send reported earnings per share up 49.1% to 1.35 euro per share.

The rise in revenue was helped by expansion in clearing services, and a record performance in fixed income and power trading, Euronext said.

The exchange also said it has launched its planned "dark" trading service, which offers institutional investors a more anonymised style of trading, helping the bourse compete with banks and other exchanges that offer it.

($1 = 0.9244 euros) (Reporting by Huw Jones; Editing by Alison Williams)