Why is there no mutton inside the sheep soup?

Generally there is no mutton inside the sheep soup, in fact, not only sheep soup, but also many of these soups do not have the original meat inside. The sheep soup inside generally have haggis, usually is the sheep's viscera or sheep's sheep intestines accounted for a large part. And the only thing that is not there is mutton mutton soup inside is indeed no mutton, and no matter which place of mutton soup, basically there is no mutton. Why not put mutton may be for cost considerations, because mutton then the price is really too expensive, if the mutton soup inside the mutton, this is also completely fine, but will cause them too high, and then drinkers may decline. So businessmen in order to ensure that the freshness of the sheep soup and to ensure that the price of the fair price, so they can only choose some haggis to cook the soup only. In fact, mutton inside the mutton soup is perfectly fine, and is perfectly fine, but the traditional practice of chicken is no mutton, basically is also out of cost considerations.