What new privileges did the pigs now enjoy over the other animals?

Thirty-one young pigs now live on the farm, all of them parented by Napoleon. He makes plans to build them a schoolhouse and discourages them from interacting with other types of animals. He also instates two rules of pig superiority: other animals must stand aside on the path to let pigs pass, and pigs are allowed to wear green ribbons on their tails on Sundays. Napoleon also awards himself the privilege of eating sugar.

Towards the end of winter, the animals smell a new scent in the wind, which they discover is from the barley Napoleon has begun to cook. Soon after, the pigs announce that all barley is reserved for them. Each pig gets a pint of beer added to his rations, with Napoleon getting half a gallon.