Apostolov, A. (2015) “EFFECT OF BLOOD INTRODUCTION ON THE FATTENING ABILITY OF PUREBRED PIGS AND CROSSBREEDS WITH DIFFERENT ORIGIN”, Bulgarian Journal of Animal Husbandry, 52(5), pp. 8–11. Available at: https://agriacad.eu/ojs/index.php/bjah/article/view/383 (Accessed: 5 October 2026).