2. The lean meat of black pork is bright red and the fat is bright; The meat color of white pork is dull and white.

3. Morphological differences.

4. The lean meat of black pork is snowy and thick; The fat of white pork is small and thin, and the lean meat is dry and firewood.

5. Difference of growth cycle.

6. The growth period of black pigs is about one year, and the physiology can reach full maturity; However, the growth cycle of white pigs is generally about 4-5 months, and the physiology is not yet fully mature.

7. Differences in drug residues.

8. Black pork does not contain substances harmful to human body such as clenbuterol, antibiotics and exogenous sex hormones; However, ordinary white pork contains harmful substances such as drug residues and exogenous sex hormones, which pose a potential threat to human health.

9. Differences in cholesterol content.

10.100g of black pork has an average cholesterol of 5 15 mg, which can reduce the occurrence of diseases such as hypertension, hyperlipidemia and coronary heart disease. 100 g of white pork has an average cholesterol content of 10 90 mg, which is twice that of black pork.