To break the bottleneck constraints of swine diseases on the swine breeding industry, enhance breeders' understanding of these diseases, and alleviate the pressure on veterinary medical resources, a vertical-domain knowledge graph and an intelligent question-answering (Q&A) system oriented toward swine disease prevention and treatment were constructed. To resolve descriptive conflicts among multi-source heterogeneous data, a domain ontology was established based on veterinary pathology, and a pr