Ventilation shutdown

Ventilation shutdown (VSD) is a means to kill livestock by suffocation and heat stroke in which airways to the building in which the livestock are kept are cut off. It is used for mass killing — usually to prevent the spread of diseases such as avian influenza. Animal rights organizations have called the practice unethical. The addition of carbon dioxide or additional heat to the enclosure is known as ventilation shutdown plus (VSD+).[1][2][3][4][5]

History

The term ventilation shutdown appears to have originated in 2006 from the United Kingdom Department for Environment, Food and Rural Affairs. The practice was first permitted in the UK on the April 29th, 2006.[6] In the United States, approval to use ventilation shutdown was given in 2015.[7]

In 2020, supply chain disruptions from the COVID-19 pandemic led to many meat plant closures and in turn backup in slaughtering. In response, millions of US farm animals were killed via mass depopulation methods with ventilation shutdown often being chosen.[5][8]

The ongoing 2020-2022 H5N8 avian influenza outbreak has led to millions of birds being killed via ventilation shutdown. In March 2022, one of the world's largest egg farms, Rembrandt Enterprises, used ventilation shutdown to kill 5.3 million chickens after the appearance of an avian influenza case.[9]

Controversy

The practice of ventilation shutdown has been called cruel by many animal welfare and animal right groups such as the Humane Society of the United States.[10] The process takes hours of high heat with one study putting the number between 1.5-3.75 hours for the egg industry.[11] Environmental temperatures as high as 170 °F have been recorded in facilities where VSD has been used. In known recordings of the practice for pigs, sustained screaming and signs of distress were observed.[5]

The widespread use of VSD is attributable by many to the American Veterinary Medical Association (AVMA) publicly classifying ventilation shutdown's use as "acceptable under constrained circumstances". This rating allows pork and poultry producers to be indemnified by the US government for the destruction of their herds and flocks using VSD. Were the practice not considered acceptable by the AVMA, no indemnities would be paid and there would be tremendous economic pressure on producers to employ more humane methods of depopulating their stock. An association known as Veterinarians Against Ventilation Shutdown has campaigned vigorously to get VSD reclassified as "not recommended" by the AVMA but so far to negligible effect. Close ties between the AVMA and large agribusiness corporations have been cited as a likely reason for the AVMA's recalcitrance.

Veterinarian Crystal Heath, who is one of the best-known critics of her profession's relationship with the meat industry and founder of Our Honor nonprofit organization, was branded an extremist and targeted for her advocacy by the meat industry.[12]

References
  1. Bolotnikova, Marina (April 14, 2022). "Amid Bird Flu Outbreak, Meat Producers Seek "Ventilation Shutdown" for Mass Chicken Killing". The Intercept. Retrieved April 17, 2022.
  2. "More than 2,900 Veterinary Professionals Call on AVMA to Prevent Brutal Ventilation Shutdown on Farms". ASPCA (American Society for the Prevention of Cruelty to Animals. December 15, 2020. Retrieved December 12, 2021.
  3. "Ventilation shutdown: A humane depopulation method". Poultry World. August 9, 2017. Retrieved December 12, 2021.
    Eric Gingerich (2015). "What is Ventilation Shutdown (VSD/VSD+)?". Veterinarians Against Ventilation Shutdown. Retrieved December 12, 2021.
  4. Malinda Larkin (August 25, 2021). "HOD recommends depopulation policy sent to expert panel for further consideration". JVMA News. American Veterinary Association. Retrieved December 12, 2021.
  5. Glenn Greenwald (May 29, 2020). "Hidden Video and Whistleblower Reveal Gruesome Mass-Extermination Method for Iowa Pigs Amid Pandemic". The Intercept. Retrieved December 12, 2021.
  6. "Royal Society for the Prevention of Cruelty To Animals (RSPCA), R (on the application of) v The Secretary of State for Environment, Food and Rural Affairs [2008] EWHC 2321 (Admin) (07 October 2008)". www.bailii.org. Retrieved 2022-07-28.
  7. Torrella, Kenny (2022-05-05). "The horrific bird flu that has wiped out 36 million chickens and turkeys, explained". Vox. Retrieved 2022-07-28.
  8. "Millions of farm animals culled as US food supply chain chokes up". The Guardian. 2020-04-29. Retrieved 2022-07-28.
  9. "US egg factory roasts alive 5.3m chickens in avian flu cull – then fires almost every worker". The Guardian. 2022-04-28. Retrieved 2022-07-28.
  10. "More than 2,900 veterinary professionals and advocates call on AVMA to prevent brutal ventilation shutdown on farms". The Humane Society of the United States. Retrieved 2022-07-28.
  11. Eberle-Krish, Krista N.; Martin, Michael P.; Malheiros, Ramon D.; Shah, Sanjay B.; Livingston, Kimberly A.; Anderson, Kenneth E. (December 2018). "Evaluation of Ventilation Shutdown in a Multi-level Caged System". Journal of Applied Poultry Research. 27 (4): 555–563. doi:10.3382/japr/pfy036. ISSN 1056-6171.
  12. Bolotnikova, Marina (2023-01-04). "The bitter civil war dividing American veterinarians". Vox. Retrieved 2023-07-02.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.