Translate the following English sentence to French:
"I would also like to thank Commissioner Fischler once more for his support and also ask him to introduce an audit to be carried out every two years on the availability and success of measures put in place to support young farmers."
J'aimerais à nouveau remercier le commissaire Fischler pour son soutien et également lui demander d'introduire un audit bisannuel sur la disponibilité et les effets des mesures de soutien aux jeunes agriculteurs.