Results obtained from the present trial enables us to conclude that ovarian cysts are
associated with around 10% of cases of return to estrus in farms where one-third of sows
that suffer from this ovarian disorder return to estrus. The presence of ovarian cysts is more
detrimental to the farrowing rate than to the number of total pigs born alive. Sows with
weaning to estrus intervals shorter than 3 days and a lactation length shorter than 14 days
have a greater probability of developing ovarian cysts.