The animals do not receive better treatment after Mr. Jone's is driven from the farm. They trade Mr. Jones for the pigs, who are just as tyrannical. Unfortunately, the animals do not see their situation.
All that year the animals worked like slaves. But they were happy in their work; they grudged no effort or sacrifice, well aware that everything that they did was for the benefit of themselves and those of their kind who would come after them, and not for a pack of idle, thieving human beings.
The animals were not badly off throughout that summer, in spite of the hardness of their work. If they had no more food than they had had in Jones's day, at least they did not have less.