Stepanenko , V., Lavryniuk , O., Borshchenko , V., Kryvyi , M., Mamchenko , V. and Khmelnychyi , L. 2021. Evaluation of efficiency of training methods for training service dogs. Bulletin of Sumy National Agrarian University. The series: Livestock. 1(44) (Mar. 2021), 63-68. DOI:https://doi.org/10.32845/bsnau.lvst.2021.1.9.