Education
He competed for the Soviet Union at the 1960, 1964 and 1968 Summer Olympics, and finished in second, fifth and third place in the coxed pairs, eights and eights events, respectively.
He competed for the Soviet Union at the 1960, 1964 and 1968 Summer Olympics, and finished in second, fifth and third place in the coxed pairs, eights and eights events, respectively.
Starting from 1971 he worked as a judge with the International Rowing Federation. In 1962 Jukna graduated from the Lithuanian University of Educational Sciences. In the late 1970s Jukna was diagnosed with a brain tumor and died in 1980 after two operations.