1. It is good for a healthy pig to have a good spirit, a bright eye, a non-stick eyelid, and a scary person. The sick pig is apathetic and has a bad posture. His eyes are closed and people are too lazy to move. 2. The sound must catch the ear of the pig, the healthy pig screams loudly; the sick pig is hoarse and low. 3. Mao Liang Liang Health and disease-free piglets grow "water spirit", fur light, no bleeding on the body; sick pigs are long, "fried", hair dull, skin often have bleeding or raw pox, sores. 4. The mouth should be closed such pigs do not arch food, do not arch groove, do not arch circle, when the food is not bad feed. 5. The length of the pig's adolescent skeleton should be naturally relaxed to facilitate short-term fattening and large heads. 6. The shoulder should be wide and the pigs tend to eat more and grow faster. 7. The tail is a whip, that is, the root tip is fine and often swings; the tail of the pig is pendulous and does not swing. Surgical Drape And Equipment Cover Nonwoven Surgical Drape,Disposable Surgical Drape,Disposable Surgical Pack Kits,Sterile Surgical Medical Drape ShaoXing SurgeCare Medical Products Co., Ltd. , https://www.sxsurgecaremedical.com