Plans to End Male Chick Culling Stall in U.S.

Egg producer Kipster recently announced it had failed to meet what was an ambitious goal — ending the practice of male chick culling in its U.S. supply chain, a practice responsible for culling six billion male chicks globally each year. The Dutch-based company had hoped to implement a technology called in-ovo sexing to eliminate this practice by fall of this year. But it hit a few roadblocks.

“We’ve been really trying hard to work with the technology provider and hatchery to get it to the United States,” Sandra Vijn, who manages Kipster’s U.S. operations, tells Sentient.

And there were other promising signs. Earlier this month, Walmart updated its animal welfare policies to prioritize “gendering innovation” within their egg supply chain, for instance. But the process is taking longer than expected.

Male chicks have long been considered a by-product by the egg industry because they don’t lay eggs and they don’t grow fast or large enough to compete with meat chickens. It’s standard practice within the industry to kill them right after they hatch — approximately six billion male chicks are killed each year globally.

In-ovo technology eliminates the need to cull live, male chicks by determining whether the embryo developing inside the egg is male or female before they hatch. The male eggs are then discarded before they can finish developing. There are other alternative technologies being investigated by researchers too, like using genetic engineering to breed hens that only lay female eggs.

Still, the company is moving forward. Respeggt, a technology company that works with Kipster on the in-ovo technology, announced that their in-ovo sexing technology would be installed in the Nebraska hatchery that Kipster sources from this month. Vijn now expects to get sexed eggs from the hatchery sometime this summer. From there, it will take about 18 weeks for the hens to mature enough to start laying eggs, which the company expects to hit the market by late 2025.

Kipster Sees In-Ovo Sexing As a Temporary Solution

In-ovo sexing was not Kipster’s first choice for the American market. The company wanted to take the production system that they use in the Netherlands — where male chicks are raised to be sold for meat — and replicate it in the U.S., says Vijn.

But that plan hit a snag. “We couldn’t get a processor to work at the scale and price that we could afford,” says Vijn. Instead of being sold for meat, the two flocks of adult roosters they had raised at their U.S. facility ended up being slaughtered and their carcasses were donated to food banks.

For Vijn, raising male chicks for meat is preferable, as it cuts down on both waste and animal suffering. “We think that everything within our farm is a good source of food for people,” she says. “With every rooster that can be eaten, there’s less need to bring additional broiler chicks to life.”

Ultimately, says Vijn, “we were looking at in-ovo as a temporary solution.”

Satisfying the American Consumer

In the Netherlands, where Kipster was founded, consumers are willing to pay a premium for meat from chickens who had basic welfare accommodations — such as access to the outdoors — during their lives.

Since last year, all fresh chicken meat sold in Dutch grocery stores comes from slower-growth breeds of broiler chicken. Like their Dutch counterparts, consumers in the United States are also willing to pay extra for animal products — including up to 38 percent more for eggs according to a 2018 survey — that they believe were produced under higher welfare conditions.

A key difference between the two countries is that in the Netherlands, consumers buy and eat the rooster meat from layer chicken breeds, says Vijn. In Europe, Kipster also sells their spent hens — those who are no longer considered productive egg layers — for human consumption. 

Consumers in the U.S. aren’t so open to the idea, however. In the United States, the hens are sold for pet food.

In the U.S., Kipster raises Dekalb white chickens, a breed specifically bred to lay eggs, up to 500 in 100 weeks. Dekalb white chickens start laying eggs at around 18 weeks of age, weighing in at a little over 1300 grams.

Research has found that the high number of eggs they lay weakens their bones, making laying hens highly susceptible to bone fractures. Dekalb white chickens are especially vulnerable to these breaks.

Ultimately, the delay in bringing the technology to the United States came down to an issue of scale. Respeggt and Hendrix needed to know that there would be enough of a market for the sexed eggs. “The equipment we have is made to produce large numbers of female eggs, and acceptance from retail, and farmers took some time,” Respeggt’s representative told Sentient.

Sentient reached out directly to Neal Martin, General Manager of Hendrix ISA-U.S., a subsidiary of Hendrix Genetics, for comment and did not receive a reply.

For Kipster, adopting in-ovo technology remains a viable, albeit second-best option. “It really fits in our philosophy that we should be eating less eggs, less meat, less animal proteins,” Vijn says, “but already use whatever is in the system so that we don’t have to bring a life on earth just for the purpose of eating them.”