VIETNAM NATIONAL UNIVERSITY OF AGRICULTURE FACULTY OF BIOTECHNOLOGY -------oOo------- GRADUATION THESIS TOPIC: “POLYMORPHISM OF PARTIAL D-LOOP MITOCHONDRIAL DNA REGION AND PHYLOGENETICS IN FIVE DUCK BREEDS IN VIETNAM” HA NOI - 2023 VIETNAM NATIONAL UNIVERSITY OF AGRICULTURE FACULTY OF BIOTECHNOLOGY -------oOo------- GRADUATION THESIS TOPIC: “POLYMORPHISM OF PARTIAL D-LOOP MITOCHONDRIAL DNA REGION AND PHYLOGENETICS IN FIVE DUCK BREEDS IN VIETNAM” Student : Bui Binh An Code :637401 Class : K63CNSHE Instructor : MSc. Nguyen Quoc Trung HA NOI - 2023 i COMMITMENT The work contained in this thesis has not been previously submitted for a degree or diploma at any other undergraduate education institution. I hereby declare that all results of the thesis were done by me. To the best of my knowledge and belief, the thesis contains no material previously published or written by another person except where reference is made. Hanoi, February 10th, 2023 Bui Binh An