Abstract
At many slaughterhouses, if a pregnant cow is killed, then medical companies pay to harvest the fetus's blood. When you communicate the details of this process to people, many of them are disgusted. I submit that those who are repulsed thereby acquire a reason to believe that this practice is morally wrong. However, it is controversial to maintain that disgust can provide moral guidance. So, I develop a theory of disgust’s moral salience that fits with the empirical work that’s been done on it, and I apply it to the collection of bovine fetal blood. I conclude by suggesting how this theory may be of use in animal ethics generally.