POVOD, M. H.; GUTYJ, B. V.; KOBERNIUK, V. V.; LіutaI. M.; KRUK, V. O.; MYKHALKO, V. H. THE DEPENDENCE OF THE REPRODUCTIVE QUALITIES OF SOWS ON THE DURATION OF THE FARROW PERIOD AND THE PHASE OF FEEDING PIGLETS. Bulletin of Sumy National Agrarian University. The series: Livestock, n. 3, p. 30-41, 27 Dec. 2022.