NSW Department of Primary Industries has a wealth of useful fact sheets and publications as an initial reference point for managing and caring for all livestock species.
Meat and Livestock Australia is the marketing, research and development body for Australia's red meat industry. Their website provides a wide variety of market pricing, marketing and extension information, and useful tools to help manage your beef cattle, sheep and goats.
Dairy Australia is the marketing, research and development body for Australia's dairy industry. Their website provides similar market pricing, marketing and extension information, and useful tools for dairy producers.
Bureau of Meteorology provides current weather and weather warnings. Keep an eye out for weather conditions that will be challenging to livestock.
NSW Office of Local Government is responsible for registration of cats and dogs in NSW, and have lots of information available on microchipping, registration, responsible pet ownership, and making sure your pet can find you again should it go missing. Change of owner details forms are available on their site.