If they set a date where the bounty would end, this wouldn't have happened. The cobra breeders would know their cobras would become worthless in a month, and so

If they set a date where the bounty would end, this wouldn't have happened. The cobra breeders would know their cobras would become worthless in a month, and so collect the bounty while they could. The rat thing could have prevented by collecting the whole rat instead of just the tail.