NestFresh and In-Ovo Sexing: A New Era for Ethical Egg Production

Since July 2025, all eggs from NestFresh, a brand under Hidden Villa Ranch, have been produced using in-ovo sexing technology, a method that avoids the culling of male chicks. This shift marks a significant step in addressing one of the most controversial practices in the egg industry, according to the Humane League.

How In-Ovo Sexing Works and Its Origins

In-ovo sexing involves determining the sex of an embryo while it is still inside the egg, allowing hatcheries to avoid raising male chicks, which are typically culled. The practice gained traction after Michael I. Sencer, now a senior vice president at Hidden Villa Ranch, witnessed the culling of male chicks during a family visit to a California egg ranch 40 years ago. “It impacted me deeply,” Sencer recalled, leading to the adoption of the technology.

The method uses techniques such as hyperspectral imaging, MRI, and DNA analysis to identify the sex of embryos as early as the 13th day of incubation, as mandated by German regulations since 2024. This approach not only improves animal welfare but also reduces costs for hatcheries by eliminating the need to raise unwanted chicks.

Adoption and Challenges in the U.S.

While in-ovo sexing is now used in four U.S. hatcheries, its adoption faces hurdles. The technology requires significant upfront investment, with hatcheries often renting machines and paying per-egg fees. According to Liz Fergus of the Humane League, the cost increase for consumers is about 1 cent per egg, though NestFresh has absorbed the additional production costs to maintain affordability.

Technical limitations also persist. For example, Cheggy, a non-invasive system developed by Agri Advanced Technologies, can only sex brown eggs, which are less common in the U.S. market. Alternative systems like Orbem’s MRI-based technology, which is more versatile but expensive, are being explored for broader adoption.

Global Trends and Future Prospects

Germany’s 2022 ban on chick culling catalyzed the development of in-ovo sexing, with the technology now expanding to countries like Brazil and Australia. In the U.S., the EGG SAVE Act, introduced in October 2025, aims to provide tax credits for in-ovo sexing equipment, though similar regulations remain unlikely. Meanwhile, retailers like Walmart are evaluating the technology, signaling potential growth.

Animal welfare advocates emphasize that in-ovo sexing is a “win-win” solution. “It eliminates the need for culling while improving efficiency,” said Nancy Roulston of the ASPCA. However, consumer awareness remains low, with only 20% of U.S. consumers familiar with the practice, according to Robert Yaman of Innovate Animal Ag.

Marketing and Consumer Acceptance

NestFresh’s decision to use the phrase “humanely hatched” on its packaging reflects efforts to simplify messaging for consumers. The brand’s in-ovo sexing process has been validated by Certified Humane, a certification that adds credibility. Despite these efforts, widespread adoption depends on overcoming cost barriers and educating the public about the technology.

As in-ovo sexing becomes more accessible, its potential to transform the industry grows. “The solutions are here, and they work,” Fergus said, highlighting the technology’s readiness for commercial scale. With continued innovation and policy support, the practice could become the new standard in egg production.