Should I get a new duck???

[BkYrdDx]

I have a small backyard flock; it's all egg laying female ducks. Two of my girls (they are Welsh Harlequins and they're sisters) had prolapse issues last year. I believe it was partially genetic, BUT they haven't had any problems since I sold my drake, so I think his overeager behavior might have aggravated it. I would like to get a new drake for my flock but I'm worried the prolapse stuff will come back and that was horrific! What should I do?