Book excerpt: This book provides comprehensive insights into the field of duck production and management. It presents a complete overview of different aspects of duck production with particular emphasis on rearing systems. The book reviews current knowledge on the anatomy, physiology, genetics, breeding, nutrition, incubation, and hatching practices of ducks. It further discusses the common diseases of duck, their treatment regime, and prevention strategies. The book additionally examines all aspects of the global duck industry, the constraints, and the recommendations. It also explores nutrient requirements and feed evaluation for duck and evaluates nutrition's influence on the gut microbiome. Towards the end, the book presents the latest genomic applications, including high throughput sequencing and various bioinformatics tools in duck production. This book serves as an essential resource for duck industry practitioners, researchers, and students.