this post was submitted on 17 Nov 2023
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Last year, I wrote a great deal about the rise of “ventilation shutdown plus” (VSD+), a method being used to mass kill poultry birds on factory farms by sealing off the airflow inside barns and pumping in extreme heat using industrial-scale heaters, so that the animals die of heatstroke over the course of hours. It is one of the worst forms of cruelty being inflicted on animals in the US food system — the equivalent of roasting animals to death — and it’s been used to kill tens of millions of poultry birds during the current avian flu outbreak.

As of this summer, the most recent period for which data is available, more than 49 million birds, or over 80 percent of the depopulated total, were killed in culls that used VSD+ either alone or in combination with other methods, according to an analysis of USDA data by Gwendolen Reyes-Illg, a veterinary adviser to the Animal Welfare Institute (AWI), an animal advocacy nonprofit. These mass killings, or “depopulations,” in the industry’s jargon, are paid for with public dollars through a USDA program that compensates livestock farmers for their losses.

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[–] EtherWhack@lemmy.world 12 points 11 months ago (1 children)

Carbon monoxide would be cheaper. We used it for euthanizing animals that couldn't be saved at the wildlife rehab center I worked at. Though, it was done with sealed induction box, not a drafty barn like someone mentioned

[–] douglasg14b@lemmy.world 5 points 11 months ago* (last edited 11 months ago) (1 children)

Sounds like it would be more expensive? Nitrogen is incredibly cheap to concentrate out of the air, 70% of what we breath is nitrogen after all.

[–] evranch@lemmy.ca 7 points 11 months ago

Monoxide is incredibly cheap to produce with a crappy farm truck or old tractor. You doing need to distill or concentrate anything, just a hose and the exhaust pipe and a couple hours of fuel for idling.

We used it to gas a nest of rats that had settled in under a grain bin floor. Only a couple rats popped out and they were dazed, the dogs quickly snacked them up. The rest expired rapidly.

A chicken barn is big and drafty but you could just use multiple tractors or detune them on purpose. Any engine running rich produces a lot of CO.