Sounds Chinese enough. That's the only reason I believe it.
They do some really crazy things cultural things (like kill all girl babies), and I wouldn't be surprised to find out that was what they do in the backwoods of China.
I've never actually like had people in my family that eat fetuses though :p
Oh, and speaking of female infanticide, why do they do that? Wouldn't having more females mean that reproducing would be more efficient? I mean, like put more babies out per male than the other way around.