After his graduation in Agricultural Science in Bonn 1959, Dietmar K. Flock specialized his studies as a Fulbright scholarship holder in Animal breeding in Blacksburg, VA (MS 1961) and Ames, IA (Ph.D., 1964). Back in Germany he worked 4 years as head of biometrics section of the Max-Planck-Institute for Animal Science in Mariensee.
In 1968, Dietmar K. Flock began his work as geneticist in the commercial poultry breeding (Heisdorf & Nelson, USA, Lohmann Tierzucht, Germany). It was in the same year (1968) when he received the "venia legendi" for Animal Breeding and Genetics and started to hold lectures in Poultry Breeding at the Universities of Göttingen (1969 – 1999) and Kiel (1984 – 1994).
Dietmar K. Flock was always able to combine his commercial and academic activities, publishing over the years extensively on layer genetics and breeding strategies and conveying his huge expert knowledge in his interesting and colourful lectures.
Since many years Dietmar K. Flock is an active member of the WPSA. In 1996 he was elected as Vice President and as Senior Vice President in 2000. As the President of the European Federation (2002 – 2006) he was very active in supporting the Working Groups and re-activating the inactive ones. Since 2002 he is the President of the German Branch.
Sustainability of poultry production is one of Dietmar Flock's main interests where he is involved in Germany and EU-wide projects.