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Of these, 862 questionnaires originated from farms keeping one of the predominant Swiss sheep breeds: Swiss White Alpine sheep, Brown-Headed Meat sheep, Swiss Black Brown Mountain sheep and Valais Blacknose sheep. During a 10-year-period, entropion was reported in 33.6% of the farms, brachygnathia inferior in 29.5%, abdominal\/umbilical hernia in 15.9%, cryptorchidism in 10.5% and torticollis in 10.5%. The most significant difference between the four breeds (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001) occurred for entropion in Swiss White Alpine sheep and Brown-Headed Meat sheep, brachygnathia inferior in Swiss Black Brown Mountain sheep, and scrotal\/inguinal hernia in Valais Blacknose sheep. The Swiss White Alpine breed showed a significantly higher animal prevalence of entropion (6.2% in 2011 and 5.5% in 2012) than other breeds (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>These findings indicate a breed-specific necessity for action, particularly regarding Swiss animal welfare legislation, especially entropion in Swiss White Alpine sheep is concerned. In general, careful selection of breeding stock is to be recommended.<\/jats:p><\/jats:sec>","DOI":"10.1186\/1751-0147-55-27","type":"journal-article","created":{"date-parts":[[2013,3,22]],"date-time":"2013-03-22T23:14:03Z","timestamp":1363994043000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Occurrence of congenital disorders in Swiss sheep"],"prefix":"10.1186","volume":"55","author":[{"given":"Deborah","family":"Greber","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcus","family":"Doherr","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cord","family":"Dr\u00f6gem\u00fcller","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adrian","family":"Steiner","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2013,3,22]]},"reference":[{"key":"858_CR1","doi-asserted-by":"publisher","first-page":"748","DOI":"10.1136\/vr.146.26.748","volume":"146","author":"ML Doherty","year":"2000","unstructured":"Doherty ML, Kelley EP, Healy AM, Callanan JJ, Crosby TF, Skelly C, Boland MP: Congenital arthrogryposis: an inherited limb deformity in pedigree Suffolk lambs. 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