Semen doses and insemination intervals of hens depending on the levels of grass meal and vitamins A and E in the rations of meat-type roosters

Sergiev Posad

142 pp.

Semen doses and insemination intervals of hens depending on the levels of grass meal and vitamins A and E in the rations of meat-type roosters — Shuvalov, Aleksandr Dmitriyevich — 1995 — Russian Dissertation Library