On December 27, 2022, Dr. Hans-Jürgen Kunz and Mr. Yang Haoye were invited to The 3rdInternational Calf and Heifer Conference. During the conference on the 27th, Mr. Yang Haoye first introduced the German-Chinese cooperation project for sustainable animal breeding and husbandry, followed by a presentation by Dr. Hans-Jürgen Kunz on “Nutritional recommendations for young female and male cattle of dual-purpose breeds”.