The teaching assistant at the College of Veterinary Medicine at the University of Karbala, Assistant Professor Dr. Mona Hussein Hassan, participated in the discussion of a doctoral thesis in the Department of Life Sciences at the College of Education for Pure Sciences at the University of Karbala, which discussed an anatomical comparison of some parts of the digestive system in Iraqi domestic ducks in central and southern Iraq, by the student Muhammad Salim Muhammad Al-Har. The aim of the thesis was to use in this study the Khudairi bird, Anas platyrhynchos, from the governorates of Basra and Holy Karbala, for a number of anatomical studies, which included the phenotypic and anatomical description of the mouth, esophagus, and stomach with its two sections (the anterior (glandular) and the bony (gizzard)), the small intestine, the large intestine, and the complex. And its accessory glands in the digestive system (the liver and pancreas). The study was completed with distinction