Definately read those articles!! But to clarify: Yes the gene is recessive, BUT if the article stated that the calf would not be a CARRIER if either parent was negative, IT IS WRONG. If either parent is free then the calf can not be deformed and dead (it got both lethal genes from each parent), but if one parent is clean and one is a carrier, the calf has a 50% chance of being a carrier (will look normal, but will carry the defect). I think one of the articles explains this if it is confusing to you!! (And trust me, it can be confusing!!!)
But bottem line: If you use a carrier, you will get carriers at best, dead calves at worst.