Constipation of pigs is usually caused by long-term feeding with coarse and hard feed, or by sudden change of feed due to sediment in feed, lack of exercise, insufficient drinking water and sudden cold weather.

(1) Symptoms: defecation stops, secondary flatulence, and abdominal examination often leads to fecal deposition.

(2) When constipation occurs in pigs, the principle of treatment is mainly catharsis, combined with rectal lavage to restore intestinal function. Warm soapy water 1000 ~ 2000 ml can be used for deep enema, and if necessary, fingers can be used to help dig out the dung ball blocked in the rectum; You can also give 50- 100g salt or oil laxatives, such as sodium sulfate or magnesium sulfate, with a concentration of 5%, through the stomach tube, or 100-200ml soybean oil once.