Ag101 has your answer. I pulled a random pic from google below. When you breed gilts that look like this you get the problems you were speaking of. Itís easy to fix. Breed for maternal traits. Frame size length of body appropriate underlines appropriate vulva placement etc. then hereís the hard part. Get judges to select for that, within 3 years farrowing and breeding difficulties would be gone if judges would only select for it. The problem is we have a whole generation of kids now that donít know what a productive sow and breeding boar even look like. Hard to undue 25 years of bad breeding and bad decisions by judges.