I recently started a guinea fowl farm, and I'm concerned about disease outbreaks. While they seem hardy, I'm aware of various illnesses that can affect them. What are the most common diseases that threaten guinea fowl, and what preventative measures can I implement to keep my flock healthy and productive? I need detailed information on vaccination schedules, biosecurity protocols, and early detection strategies for common guinea fowl ailments. I'm particularly interested in cost-effective and practical solutions.