Checkoffs

In the US, checkoffs are national programs overseen by the USDA, which are assigned with promoting a commodity through targeted research and advertising. These programs are funded by the industry itself (every commodity sale comes with a "tax" that goes towards the specific checkoff). As a consequence, the public, directly through paying for a commodity, and indirectly through governmental subsidies, are paying for these agenises' promotions. To be clear, not only the animal agriculture have checkoffs, plant foods like soy and popcorn also have these programs, however they're not as successful at persuading the public to buy them. Fun fact: there is a checkoff for promoting christmas tree sales, so it's not only for food either. 

Beef dairy and egg checkoffs were highly successful in both producing research to support their commodity and in advertising said commodity to the public.