Kaiser Joseph II arranged for Boër to make a study trip to Holland, England, France and Italy in 1785–88.

Faithful to the philosophy and principles of his mentor Anton Josef Rechberger, Professor Boër represented the conservative trend in obstetrics for which he was an outstanding advocate.

[5] He did not draw blood or administered drugs to birth-giving women, instead he prescribed nutritious food, fresh air, and exercise.

The trend Boër represented was eventually losing favour to an approach emphasizing active intervention by doctors.

He was succeeded by professor Johann Klein who introduced teachings based on the new field of pathological anatomy.