On July 16, 2015, Z.G. Trotsenko defended his candidate's theses at the Institute of Pig Breeding and APR of the National Academy of Sciences of Ukraine. and Ivanova M.Yu.

On July 16, 2015, Z.G. Trotsenko defended his candidate's thesis at the Institute of Pig Breeding and APR of the National Academy of Sciences of Ukraine. on the topic "Formation of growth, development of heifers and the main productivity characteristics of Ukrainian dairy cows of the black and spotted breed under different technologies of their maintenance."

On July 16, 2015, the defense of the candidate's thesis of Ivanoiv M.Yu. on the topic "Development and improvement of elements of the technology of homogenization of manure effluents on industrial pig farms".