History of Science and Engineering Annotation << Back Breeding cattle of Zauralye in 1920–1930th V.E. Ivanenko The characteristic of pedigree structure of a horned cattle in Zauralye is given; different forms of breeding work in 1920–1930th are opened; the reasons hindering realisation of breeding work are indicated; the help of the state in improvement of breed of cattle is shown. Key words: animal industry, cattle breeding, cattle, tribal cattle, agriculture.