S. Tkachenko

Improvement in the genealogical strucrure of ukrainian black-and-white dairy cattle breeding herds by identifying and using bull-leaders

Authors: 
M. Tkachenko, S. Tkachenko

Holstein breed bull-sires efficiency in improving Ukrainian black-and-white dairy cattle

Authors: 
M. Tkachenko, S. Tkachenko

Designing different options in Ukrainian black-and-white dairy cattle population selection

Authors: 
M. Tkachenko, S. Tkachenko