Wagenaar G
Tijdschr Diergeneeskd. 1980 Apr 1;105(7):275-81.
A sheep farmer purchased ten Texel ewes from a sheep breeder. He bought a ram from another sheep breeder. The ewes gave birth to twenty lambs. Seven lambs born of six ewes showed the features of microphthalmia. This is a simple recessive heritable defect. The buyer demanded annulment of the purchase by virtue of Section 1540 of the Civil Code. The court in Middelburg gave judgement for the plaintiff regarding the six ewes which had given birth to the lambs, showing the defect. On appeal, however, the court of justice in The Hague decided the cases in favour of the vendor, experts having defined the term 'breeding ewe' and a number of others having answered questions.
一位养羊农民从一位种羊饲养者那里购买了10只特克塞尔母羊。他从另一位种羊饲养者那里买了一只公羊。这些母羊生下了20只小羊。6只母羊所生的7只小羊表现出小眼症的特征。这是一种简单的隐性遗传缺陷。买家依据《民法典》第1540条要求取消购买交易。米德尔堡的法院就生下有缺陷小羊的6只母羊做出了有利于原告的判决。然而，在上诉时，海牙法院在专家对“繁殖母羊”一词进行了定义以及其他一些人回答了问题后，做出了有利于卖方的裁决。
