It is a common problem for sows to lose appetite or not eat after delivery, especially for primiparous sows. Mainly due to reasons such as premature feeding, excessive feeding or coarse feeding after delivery, sows have indigestion and "eat the top"; Or the feed is too fine and the green feed is insufficient, resulting in constipation of sows, resulting in loss of appetite and unwillingness to eat; Or because the sow swallowed the placenta, leading to indigestion; In addition, sow malnutrition at ordinary times, coupled with excessive fatigue when giving birth, will also cause appetite disorder.

In order to prevent sows from not eating after delivery, we should pay attention to adjusting nutrition, supplementing protein, vitamins, calcium, phosphorus and other minerals in time, properly controlling the feeding amount of concentrate one week after delivery, and thinning the feed. Keep a certain amount of roughage in the diet and eat more green feed to prevent postpartum constipation and affect digestion. The afterbirth of sows should be eliminated in time to avoid being swallowed by sows.

The following methods can be used to treat postpartum hunger of sows:

(1) Boil 1 pig bile and add 100 ~ 200g vinegar to feed pigs.

(2) Rice vinegar100 ~150g and raw eggs 1 ~ 2 were fed to postpartum sows.

(3) The kelp is washed, chopped and cooked, 0.5 kg each time 1 time every morning before feeding.

(4) Dry yeast tablets and vitamin B complex solution are taken orally with water or artificial salt, soda tablets and bitter stomach tonic for several days.

(5) 25% ~ 50% glucose 100 ~ 200ml, vitamin C 10ml or hydrocortisone with sugar water, vitamin B 1 10ml intramuscular injection for several days.

(6) Chinese medicine is based on the principle of invigorating qi and nourishing blood, strengthening spleen and stimulating appetite. The prescriptions are: Codonopsis pilosula 15g, Atractylodes macrocephala 15g, Poria 10g, Angelica sinensis 10g, Radix Rehmanniae 10g, Rhizoma Chuanxiong 8g and Radix Paeoniae Alba/kloc-0.