Moscow city. Opening of the session of the All-Union Academy of Agricultural Sciences in the Column Hall of the House of Unions. Academician P. Ye. Ladan takes exams, presents diplomas to graduates of the Don Agricultural Institute, speaks to them; supervises pigs in the experimental farm of the institute; works in an office, laboratory. Testing of a new device "Tuk-2", which determines the thickness of pig fat. P. Ye. Ladan on a farm where new breeds of cattle are raised. Chairman of the Don Agricultural Artel named after the 20th Congress P. Kostenko gives interviews (synchronously). Growing pigs on the farm. P. E. Ladan's interview (synchronously).