After entering the summer, the temperature rises, providing a favorable external environment for the growth of bacteria. Especially in some southern provinces (Guangdong, Guangxi, Jiangxi, etc.) the rainy season is coming, and the high temperature and humid environment provides a comfortable "hotbed" for the breeding of bacteria on pig farms.

From May to June, the technical teacher performed on-site service on a large-scale pig farm with 1,000 sows in Ganzhou City, Jiangxi Province. During this period, they tracked the postpartum situation of about 100 sows in detail, and deeply realized the sows. The hazards of postpartum non-eating and the importance of postpartum health care.

Causes and clinical manifestations

The clinically common causes of postpartum sows not eating are mainly due to the following reasons:

1. The postpartum sows are fed too much and the feed concentration is too high;

2. The sow swallowed the afterbirth and caused indigestion;

3. Too much concentrated feed and too little green feed for the sow;

4. Excessive postpartum fatigue of sows causes loss of appetite;

5. The birth canal of sows is infected by bacteria after delivery.

The main reason for the postpartum non-feeding caused by the tracking of production sows is: the production sows are all three yuan first-feet sows, and they were raised in large pens before, so they could not fully feed quantitatively during pregnancy. , Resulting in the fetus being too large during the birth process, and the incidence of dystocia is higher. In the process of artificially assisted delivery of dystocia sows, the birth canal is damaged, which causes bacterial infection and causes the sows to not eat after delivery.

The main clinical manifestations are increased body temperature (40-41°C), loss of appetite, and often lying down.

Prevention and control measures

prevention:

Feed sows with nutritious and easy-to-digest feed before delivery. The combination of concentrate, coarse feed and green feed should be reasonable. It is not advisable to feed sows that are too fat or too lean.

Batch management, clean and disinfect the farrowing room of sows before delivery, to prevent bacterial infection, clean the placenta produced by sows in time, and prevent the sows from swallowing.

treatment:

0.9% sodium chloride solution (500mL) + amoxicillin (2g) + oxytocin (2mL) + houttuynia cordata (20mL), 5% glucose injection (250mL) + Vc injection (30mL) intravenous drip, amino Biling injection (20mL) was injected intramuscularly for three consecutive days. After the above treatment measures, the sow has been eating normally.

If the sow does not eat after giving birth, it will reduce the sow’s lactation ability and affect the health of the piglet. Therefore, during the pig price peak period, we must strictly manage sow feeding, control the temperature and humidity of the pen, maintain the sanitation and regular disinfection system of the pen, improve the health and utilization rate of the sow, and reduce the incidence of postpartum non-eating. , Stabilize the production of pigs.