Some key DevOps practices businesses should adopt include Continuous Integration (CI), Continuous Deployment (CD), Infrastructure as Code (IaC), automated testing, proactive monitoring, and collaboration across teams. CI/CD helps to automate the software development, testing, and deployment processes, resulting in faster delivery and reduced risk of errors. IaC enables businesses to manage their infrastructure using version-controlled code, making it easier to maintain and scale resources. Automated testing ensures that software is continuously validated for quality and performance, while proactive monitoring helps teams quickly identify and address issues. Fostering collaboration across teams and promoting a culture of shared responsibility are also essential to the successful implementation of DevOps practices.