Wei poses with his baby girl. Photos by Wen Xinzheng / China Daily

As for the goat manure, Wei says it's "very dry, not dirty!"

Wei's wife has been supportive of the idea. Her five-month maternity leave will end soon. She says the goat milk "tastes very good".

When his daughter was 100 days old, and according to local custom the family held a ceremony in a restaurant in Changsha. After the meal, some relatives recounted how he fed the baby with self-raised goats on their way home on the bus, where a reporter of a local newspaper happened to overhear and later reported it.

Some pediatricians, however, say goat's milk for under 3-year-olds is not good because their stomachs haven't developed enough and there may be hygiene problems.

Wei disagrees: "Have they ever done it? They don't know it at all!" He says it was not a sudden impulse to raise goats and adds that he was inspired when he visited the Inner Mongolia and Tibet autonomous regions, where locals fed their babies fresh goat milk. He has also been studying traditional Chinese medicine for several years and believes it is safe from a TCM point of view.

He says his 4-month-old daughter is healthy and this proves what he has been saying.

Wei's neighbors in Changlong village are conflicted about his experiment. A neighbor surnamed Zhou says: "He is doing an experiment on his own baby," and also complained about the smell of goat feces.

Wei counters that "food from nature is the best". His goats produce about 6 liters of milk each day, more than enough for his wife and the baby, he says. Lately a cousin got pregnant, and she also plans to drink the goat milk, Wei adds.

Contact the writer at huangyuli@chinadaily.com.cn.

Feng Zhiwei contributed to the story.