I went to a talk given by a Major Dog Food Company that insisted dogs were omnivores, and made a Big Thing about having colostrum in their puppy food. I didn't want to embarrass the lecturer, who was very nice, so waited until after to ask her what the colostrum was. Bovine, it turned out. Apart from the ethics, I wasn't convinced that bovine colostrum would provide any benefit to weaned puppies, and I got an agreement off the record. But of course she had to stick to her script and toe the party line. You really can't serve God and Mammon.