Postpartum dysgalactia in sows: pathophysiology and risk factors

Adequate colostrum and milk production by the sow is essential for the survivability and growth of the piglets. Postpartum dys galactia syndrome (PDS) in sows is characterized by inadequate and insufficient colostrum and milk production during the first days after farrowing. PDS occurs worldwide and incurs major financial losses to affected pig herds. Due to the multifactorial nature of the syndrome, the identification of the different risk factors and their relative impact is not straightforward (15). Logically, also the implementation of preventive and therapeutic measures is a challenge for pig veterinarians. The term MMA, most frequently used in (old) literature, is considered nowadays as a subtype of PDS, as in many instances, there is no true agalactia and the role of clinical mastitis is of debatable significance.