The answer is:
“A wave of rebelliousness ran through the countryside.”
“Rumours of a wonderful farm, where the human beings had been turned out . . .”
“Above all, the tune and even the words of 'Beasts of England' were known everywhere.”
In the passage from "Animal Farm," the author George Orwell makes reference to the repercussion the wonderful Animal Farm has on animals at other farms through the English countryside. For example, bulls, sheep and cows behaved in a disobedient and unmanageable manner. Even the anthem of Animal Farm has become popular.