TY  JOUR
TI  USE OF SELECTION INDICES IN BREEDING WORK
KW  cattle breeding
KW  index
KW  bull
KW  specification
KW  dairy
KW  selective
JO  Bulletin Samara State Agricultural Academy
AU  Efimov, I.A.
AU  Usova, T.P.
AU  Yudina, O.P.
PY  2019
IS  4
PB  Samara State Agrarian University