TY CONF TI ALPHA-AMYLASE CONTENT IN LACTATING BLACK-AND-WHITE COWS IN WESTERN SIBERIA KW cows KW black-and-white breed KW alpha-amylase JO SCIENTIFIC SUPPORT FOR LIVESTOCK BREEDING IN SIBERIA AU Sebezhko, O.I. PY 2024 PB Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS