Salpingitis is defined as inflammation of a female duck's oviduct; it is usually caused by a bacterial or viral infection. Escherichia coli
and Pasteurella multocida
are the bacterial organisms that are the most common cause of salpingitis in ducks. Secondary salpingitis has been reported in several outbreaks of necrotic enteritis in commercial breeder ducks. Tetratrichomonas anatis
has also been implicated as a cause of salpingitis in ducks, if it migrates from the duck's small intestines into the oviduct.
Salpingitis can occur in acute or chronic form. Common causes of salpingitis include other reproductive system conditions such as egg binding or oviduct impaction.
The oviduct is one of the main organs within a female duck's reproductive system. It is a long twisted tube through which an ovum (egg) passes from the ovary. The oviduct is equivalent to the fallopian tube in female humans. Initially the duck may not show any sign of infection, but will begin to lay fewer eggs and in some cases may stop laying eggs altogether. This has an internal impact on the bird, as the partially produced egg material (shell, yolk, membranes, etc.) that would normally develop into an egg will start to accumulate within the oviduct. The oviduct is only so large, and when it can no longer fit anymore egg material it will start to spill out and into the duck's body cavity. Once this occurs, the condition is referred to as egg peritonitis.