Alexandra Campbell

The present invention is concerned with boosting innate immunity in animals with an alternative complement pathway. It provides a method for boosting innate, comprising the step of administering to said animal an effective amount of a red seaweed of Asparagopsis species, an extract therefrom or residual biomass following an extraction process. Typically administration of the red seaweed, an extract therefrom or residual biomass following an extraction process, is by feeding the animal an animal feed. Treatment of animals such as fish with red seaweed of Asparagopsis species is an alternative to other disease management strategies such as use of antibiotics, either continuously or in response to infection, vaccines and chemotherapeutics such as, for fish, bathing in hydrogen peroxide, or can be used in conjunction with these strategies.