One of the atrocities of industrialized agriculture is the egg industry’s killing of male chicks. Each year, more than 6 billion male chicks are killed worldwide, up to 300 million of them in the U.S.1 The reasoning behind this abhorrent practice is at the root of what is wrong with corporate agriculture — egg-laying hens are bred to lay eggs, and nothing more.

Because males cannot produce eggs, and don’t grow enough meat to make them useful for human consumption (as opposed to broiler chickens, bred to grow unnaturally large), they would cost more to raise than they would be “worth.” With complete disregard for life, egg producers therefore “cull” the males, or kill them off, shortly after birth, sending them to be used as pet feed, livestock feed or simply filler for landfills.

A team of Israeli scientists has now filed a concept patent that involves genetically engineering hens to pass on a lethality, or killer, gene to male embryos, which would eliminate them before they hatch.2 While it’s clear that the practice of killing male chicks must end, this biotech “solution” could end up creating far more problems than it solves.

GE Hens Pass on Lethal Gene to Male Embryos

The patent, which was filed with the State of Israel Ministry of Agriculture & Rural Development listed as the applicant, and Yuval Cinnamon and Enbal Ben-Tal Cohen as the inventors,3 uses the gene-editing tool CRISPR, or Clustered Regularly Interspaced Short Palindromic Repeat, to insert a foreign gene — the lethality gene — into the male sex Z chromosome.4

The genetically engineered (GE) hen would pass the lethality gene — which is supposed to only be activated by blue light — onto all male embryos. Once the eggs are laid, blue light would then be used to activate the lethality gene and kill all of the male embryos in-ovo, or in the egg.

This will likely be presented as a more “humane” approach, but it comes with significant risks, including to the hen, because the lethality gene is likely to produce highly toxic protein. According to GM Watch:

Read More: CRISPR Fried Chicken: Genetically Engineered Hens Made to Kill Their Male Chicks

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