Farmer Liu Bingyong used to make a tidy profit selling milk but is now leaking cash -- the victim of a dairy sector crisis that embodies several of China's economic woes.

Milk is not a traditional mainstay of Chinese diets, but the government has long pushed people to drink more, citing its health benefits.

The country has expanded dairy production capacity and imported vast numbers of cattle in recent years as Beijing pursues food self-sufficiency.

But chronically low consumption has left the market sloshing with unwanted milk -- driving down prices and pushing farmers to the brink -- while a baby bust threatens to cloud its future prospects.

"The current state of China's dairy industry has been long in the making," said Liu, a veteran farmer in the eastern province of Shandong.

"We always knew things were going to get worse if the industry didn't adjust," he told AFP.

A few years ago, Liu typically skimmed a profit of about 5,000 yuan ($700) per day from his yield.

But since last year, purchase prices have plummeted so low that he has been making losses.

His business has been shedding up to 10,000 yuan a day during the worst times, and even now is "still not profitable", he said.

"There's no way out of it. It's become normal for farmers to slaughter their cows."

- 'Too many cows' -

Liu is not alone in feeling the pinch, with farmers across China's northern dairy belt telling AFP they had been in the red for months.

They said many had been dumping milk, converting it into powder, selling or even culling animals to balance the books.

"There are just too many cows," said a farmer surnamed Wu in the northeastern province of Liaoning.

Yifan Li, the head of Asia dairy at StoneX, a commodity financial services firm, traced the issue to the mass import of calves from 2019.

Those animals reached maturity by 2022, when mass Covid lockdowns in Chinese cities strangled normal supply lines.

The curbs were lifted at the end of that year, but persistently listless consumption has left the dairy industry oversupplied, Li said.

"Chinese consumption is coming back, but consumers prefer to spend on experiences... (and not) on premium products anymore," he told AFP.

Official figures show China's milk production rose 6.3 percent last year from 2022.

But purchase prices for raw milk have been generally declining and last year fell below the average production cost of 3.8 yuan per kilogram.

Wu, the farmer in Liaoning, said farmers in his community had been selling surplus cattle for beef.