complex vertebral malformation
... that the exceptional Holstein sire Carlin M Ivanhoe Bell passed on the genes for both good milk production and complex vertebral malformation, a lethal genetic disorder?
... that the exceptional <a class="mw-redirect" href="./Holstein_cattle" id="mwBnM" rel="mw:WikiLink" title="Holstein cattle">Holstein</a> sire Carlin M Ivanhoe Bell passed on the genes for both good milk production and <b id="mwBnQ"><a href="./Complex_vertebral_malformation" id="mwBnU" rel="mw:WikiLink" title="Complex vertebral malformation">complex vertebral malformation</a></b>, a lethal genetic disorder?