Factors affecting sow lactation-season, breed, disease, etc.

Seasonal factors affecting sow lactation: spring and autumn, mild and cool weather, more green feed, strong appetite of sows, more milk production; cold winter, sows consume more body heat and less milk production. The estrus of sows during lactation often affects the quality and quantity of lactation, and it is easy to cause white dysentery in piglets. Sows with high lactation will inhibit estrus. Different breeds of sows have different amounts of milk. The lactation ability of Landrace pigs and their crossbred sows was significantly higher than that of medium-sized Yorkshire and Barkshire and their hybrid sows. If sows get sick during lactation, such as colds, mastitis, pneumonia and other diseases, milk production can be reduced.