Herman Lutke Schipholt is a Demeter farmer and is responsible for organizing the rearing of ÖTZ animals in Switzerland. In cooperation with Nina Griessmeyer's small-scale hatchery at Büelhof, chicks are hatched and reared on various farms in Switzerland.

Sonderedition Huhn „Sensitiv“ mit ÖTZ-Zweinutzungshuhn
A joint project by defu and ÖTZ.
Defu's premium dog food from organic farmers is now also available with ÖTZ dual-purpose chicken. In addition, organic animal breeding is supported with 10 cents per tin sold.