The book "Seed Production of Catfish in Biofloc" offers an in-depth exploration of the methodologies and principles behind the successful hatchery of catfish using biofloc technology. This technology leverages the natural microbial communities in water to enhance water quality and provide supplemental nutrition to catfish larvae, significantly improving survival rates and growth performance. Key Topics Covered: 1. Introduction to Biofloc Technology: Explanation of the biofloc system and its benefits, including water quality management and cost efficiency. Discussion on the microbial communities involved in biofloc and how they contribute to the health and growth of catfish. 2. Broodstock Management: Guidelines on selecting and maintaining high-quality broodstock. Techniques for optimizing breeding conditions and enhancing reproductive success. 3. Spawning Techniques: Detailed protocols for both natural and induced spawning methods. Instructions on setting up and managing spawning tanks using biofloc. 4. Egg Handling and Larvae Rearing: Best practices for egg incubation, ensuring high hatchability. Steps for managing larvae in biofloc systems, focusing on survival rates and early growth. 5. Nursery Management: Strategies for transitioning larvae to fry, emphasizing the role of biofloc in reducing disease and mortality. Detailed feeding schedules and nutritional management for fry. 6. Water Quality and System Maintenance: In-depth analysis of water parameters critical to biofloc systems. Tips for maintaining optimal biofloc conditions to support catfish health and growth. 7. Economic and Environmental Considerations: Evaluation of the cost benefits of biofloc systems versus traditional methods. Discussion on the sustainability of biofloc in reducing environmental impacts of aquaculture. 8. Challenges and Solutions: Identification of common challenges in biofloc-based catfish seed production. Practical solutions to issues such as disease outbreaks, water management, and system scalability. 9. Marketing and Distribution: Guidance on the economic aspects of catfish seed production. Strategies for effectively marketing and distributing catfish fry, both locally and internationally. 10. Case Studies and Real-World Applications: Examples of successful biofloc-based catfish hatcheries. Lessons learned from various implementations and their outcomes. Authors: Adi Sucipto: With over 25 years of experience in aquaculture engineering, Adi Sucipto brings a wealth of knowledge in hatchery management and the application of biofloc technology in aquaculture. Rafif Muhammad: A student at Universitas Brawijaya, Rafif Muhammad combines academic excellence with hands-on experience in operating a catfish hatchery, contributing fresh insights and innovative approaches to biofloc systems. The book serves as a valuable resource for aquaculture professionals, researchers, students, and anyone interested in sustainable fish farming practices. It not only provides technical guidance but also encourages the adoption of environmentally friendly practices that can lead to more efficient and profitable catfish farming operations.