The most expensive dairy cow in the world

Why has ‘Doc’ just smashed the sales record, and why is she so valuable? Doc – or if you use her official name, S-S-I Doc Have Not 8784-ET – is a large and gorgeous Holstein cow. As you can see in a video clip of her recent sale, Doc is mostly black in coat colour, has a tremendous udder and shines with health. But it’s what’s inside Doc – her genes – that led to her recently smashing the previous sales record for a Holstein cow in the US (and as far as anyone can gather, the