Embryologist eyes blue-light treatment to end male-chick culling

Culling day-old male chicks from egg-laying hens is an on-going dilemma for the global poultry industry, resulting in the culling of 7 billion male chicks annually. At the 2025 International Poultry Scientific Forum, Yuval Cinnamon, PhD, outlined the work his research team has done on the Golda hen and optogenetics — a blue-light treatment — to halt the development of male chicks and thereby the need for culling.

New genotype assay improves ILTV diagnosis in broilers

University of Georgia researchers, led by Maricarmen Garcia, PhD, have developed a new genotyping assay for analyzing clinical samples of infectious laryngotracheitis virus (ILTV). Identifying the genotype of the outbreak-related virus and determining its genetic relationship to field or vaccine strains is key to diagnosing ILTV.

Light color impacts poultry behavior and production

The ancestor of the modern-day chicken, the red jungle fowl, was exposed to different spectra of light in their natural habitat. The surrounding environment, vegetation, season and time of day all affect the color of light exposure to the wild bird, which may have lingering behavioral effects on present-day poultry.