1. Poor egg production performance, annual egg production of 150-180 eggs, the average egg weight of 40 grams, while the average annual egg production of ordinary chickens is generally in the range of 280-310 eggs, the egg weight of 60-64 grams, so the toffee chicken's egg production is relatively small.

2. Small in size, Guifei chickens have an exit weight of 2-3 pounds, while ordinary chickens have an exit weight of more than 4 pounds.

3. Slow growth rate, the toffee chicken needs about 90 days to be ready for slaughter, while the white-feathered broiler only needs about 40 days to be ready for slaughter.

4. Poor feed remuneration. The feed-to-meat ratio for toffee chickens is around 3.2:1, while that of ordinary chickens is usually 2-2.3:1, which means that toffee chickens have a lower feed conversion ratio.

5. Narrow sales channels, the market demand for toffee chickens is relatively low, requiring chicken farmers to find their own markets to sell their chickens, whereas ordinary chickens have mature sales channels, and usually chicken farmers can sell their chickens at home.

6. Toffee chickens require higher farming techniques, which may lead to high mortality rate or slow growth rate if not properly farmed.

7. Since the meat quality and taste of Guifei Chicken is different from that of ordinary chickens, there may be some market acceptance problems.

It should be noted that the above disadvantages of guinea fowl do not apply to all guinea fowl breeds or individuals, as there may be differences between different regions and breeds of guinea fowl. In addition, with the development of science and technology and the continuous improvement of breeding techniques, these problems may also be better solved.