Obstetric diseases in sows commonly present with high fever from the first half of the month up to 7–10 days postpartum, with body temperatures ranging between 40.5°C and 41°C. Affected sows often lose their appetite, appear lethargic, have dry feces, yellow urine, and are unable to stand for long periods. These conditions may lead to dystocia, abnormal placenta retention, or issues with milk production—either too little or none at all. Severe cases can result in mastitis, endometritis, and prolonged estrus, leading to repeated infertility. Newborn piglets are also at higher risk of low immunity, weak vitality, and secondary infections, which increase mortality rates.
Currently, these diseases are quite common in pig farms, posing significant challenges to farm management and affecting overall productivity and economic returns. The causes are complex, with many attributing them to bacterial infections. However, reproductive disorders such as PRRS, pseudorabies, circovirus, and parvovirus also play a major role. Additionally, eperythrozoonosis is frequently observed in sows. Therefore, it's essential for pig farms to enhance diagnostic efforts and implement comprehensive health management strategies.
Based on clinical experience, the following prevention and control measures are recommended:
**Prevention:**
1. Administer Gao Ligao or Sulfo Gold with Sodium Selenite VE in feed 7 days before mating or breeding, or inject Cefazefos 24 hours prior to mating. This helps prevent genital tract infections, supports ovulation, improves egg quality, and increases fertility rates.
2. Adjust the diet during pregnancy according to the sow’s nutritional needs. Provide sufficient nutrients to support fetal growth and improve the sow’s overall health.
3. Add Gao Ligao or Shulin to the feed 7–10 days before farrowing to reduce the risk of pre- and postpartum infections and enhance piglet survival.
4. Inject Expeditionary New Omega (0.1 ml/kg) 24 hours before and after farrowing to lower the incidence of endometritis and agalactia syndrome. Neonatal piglets should receive 0.5 ml, 0.5 ml, and 1 ml of New Omega on day 1, day 7, and day 14 or 21 postpartum, respectively. This helps reduce the occurrence of diarrhea and respiratory diseases, improving survival and laying a strong foundation for the fattening stage.
**Treatment:**
1. For sows showing high fever, anorexia, and constipation during pregnancy, administer Amoxisup or Suckalin diluted with Antarctic Ice Needle via intramuscular injection once daily. If there is a concurrent Erythrocyte infection, add Multi-Energy. Most cases show improvement within 3–5 days.
2. For postpartum sows with high fever, anorexia, and infection, use similar treatments with Super Linmei. In severe cases, additional supportive care such as cardiac stimulation or fluid therapy may be necessary.
With the expansion of the aquaculture industry, the scale of pig farming has grown, leading to more imported breeds and an increase in new diseases. This has made disease patterns more unpredictable. Many farmers lack sufficient preventive measures and rely heavily on medication, leading to increased drug resistance and diverse pathogens. Some diseases persist for long periods, making them difficult to eliminate. To address this, most farmers should focus on comprehensive disease prevention, improve feeding and management practices, develop tailored health plans, and strengthen their ability to manage risks, ultimately boosting breeding efficiency and profitability.