The horse having reached the end of his tether, so to speak, halted and, rearing high a proud feathering tail, added his quota by letting fall on the floor which the brush would soon brush up and polish, three smoking globes of turds.
There are no more uses of "quota" in the book.
Show samples from other sources
All the salespeople met their quota for the month.
The quota for Japanese automobile imports was negotiated.