How does Orwell present the lives of the animals in this extract from Animal Farm?

“And even the miserable lives we lead are not allowed to reach their natural span. You young porkers who are sitting in front of me, every one of you will scream your lives out at the block within a year. To that horror we all must come — cows, pigs, hens, sheep, everyone. Even the horses and the dogs have no better fate. You, Boxer, the very day that those great muscles of yours lose their power, Jones will sell you to the knacker, who will cut your throat and boil you down for the foxhounds. As for the dogs, when they grow old and toothless, Jones ties a brick round their necks and drowns them in the nearest pond.”