Eating raw duck egg yolks may be preferable to cooked yolks due to partial degradation of some compounds by heat.

“I eat raw duck egg yolks oh yeah yeah they're amazing ice creams they they're fantastic you can almost cut them with a knife they're so viscous and rich I don't eat the white raw because of this compound avidin and the white binds by it and I don't think raw chicken or duck whites are compatible but I eat the yolks raw because it tastes better that way many of the compounds and the yolk are at least partially heat labile degraded by heat and I just find it to be simple and easy”