United States 2020 – COVID-19 slaughter plant shutdowns and emergency farm depopulation
Trade & Market Change
Expired
April 1, 2020
Summary
In spring 2020, COVID-19 outbreaks among workers at US slaughter and processing plants caused approximately 20% of meat processing plants to close temporarily and reduced beef and pork slaughter capacity by approximately 25–43% and approximately 40% respectively in April 2020 compared with April 2019. Approximately 65% of US meat processing plants reported COVID-19 outbreaks. As slaughter capacity collapsed, integrators and producers initiated emergency on-farm depopulation of surplus pigs and poultry that could not be moved to slaughter, using mass-killing methods including ventilation shutdown and water-based foam. Over 10 million hogs were estimated to have been removed from the US meat supply chain between April and September 2020, contributing to a shortage of approximately two billion pounds of pork — more than 7% of total production relative to the prior year. By mid-2020 most large plants had resumed operation with adjusted safety measures and annual hog slaughter for 2020 ultimately exceeded 2019 levels.
Background Context
Prior to 2020, US hog and cattle slaughter was highly concentrated in a small number of large, high-throughput plants, making slaughter capacity sensitive to disruption at individual facilities. For the first three months of 2020, federally inspected hog slaughter volumes exceeded 2019 levels, indicating the sector was operating at or near capacity before COVID-19 outbreaks began. Meatpacking plants involved dense labour environments and limited physical distancing, which contributed to rapid COVID-19 spread among workers. JBS USA temporarily closed its large Greeley, Colorado beef plant in April 2020; similar closures and slowdowns occurred at major pork and poultry plants across the Midwest and Great Plains. The highly concentrated, just-in-time structure of US livestock slaughter — particularly for pigs and poultry with tightly scheduled growth and slaughter windows — created immediate pressure on producers when slaughter capacity was interrupted, as animals could not be held on farms indefinitely without additional space and resources.
System Impact
Direction
Reduces Exploitation
Type
Changes Scale
Significance
High
Slaughter and processing capacity across US beef, pork, and poultry plants contracted sharply in April–May 2020 as COVID-19 outbreaks forced plant closures and slowdowns. Beef slaughter capacity losses are estimated at 25–43%; pig and cattle slaughter fell approximately 40% in April 2020 compared with April 2019. An econometric study using USDA plant-level data found that larger beef and pork plants experienced higher underutilisation rates during April–May 2020, indicating that high-capacity plants — which account for a substantial share of national slaughter throughput — were disproportionately affected. As market-ready animals backed up on farms without slaughter access, integrators and producers directed emergency on-farm depopulation of surplus pigs and poultry. The American Veterinary Medical Association reported thousands of swine and poultry destroyed in April 2020, with one producer warning that millions more could be depopulated if constraints persisted. The Frontiers in Veterinary Science synthesis estimates over 10 million hogs were removed from the US meat supply chain between April and September 2020, generating an estimated shortage of approximately two billion pounds of pork — over 7% of the prior year’s total production. USDA FSIS oversaw inspection at federally inspected establishments during shutdowns and slowdowns. By mid-to-late 2020, most large plants had resumed operation with COVID-19 safety measures in place. ERS data document that despite the spring disruption, total annual US hog slaughter in 2020 exceeded 2019 levels, reflecting system compensation through later-year processing of accumulated animals; the 10+ million hogs depopulated on farms did not contribute to this recovery.
Anticipated Effects
If similar future slaughter plant capacity shocks occur without adequate alternative processing or storage capacity, emergency on-farm depopulation of surplus animals would be expected to recur, particularly in tightly scheduled swine and poultry production systems.
If USDA were to implement the measures requested in the August 2020 emergency legal petition filed by the Animal Legal Defense Fund and allied organisations — including restrictions on COVID-19 relief funds covering ventilation shutdown and water-based foam depopulation, and creation of enforceable depopulation standards — this would be expected to change financial incentives and method selection in future emergencies. USDA’s formal response to that petition is not documented in sources consulted; see Editorial Correction Notice.
Significance Rationale
Assigned Reduces Exploitation (impact direction) based on the documented removal of over 10 million hogs from the US meat supply chain between April and September 2020 through emergency on-farm depopulation — animals that were killed without entering the commercial processing system. The short-term contraction in slaughter throughput (25–43% beef capacity reduction; approximately 40% pig and cattle slaughter reduction in April 2020) is documented at national scale. The annual recovery — total 2020 hog slaughter ultimately exceeding 2019 levels — reflects the system processing backed-up animals in subsequent months rather than reversing the depopulation events; animals killed on farms did not re-enter the supply chain.
Assigned Changes Scale (impact type) because the primary mechanism is a documented reduction in the number of animals moving through the slaughter system during the disruption period, combined with emergency on-farm depopulation permanently removing animals from the supply chain.
Assigned High significance because the disruption affected approximately 65% of US meat processing plants nationally, produced documented national-scale capacity reductions across beef, pork, and poultry sectors simultaneously, and resulted in over 10 million hogs eliminated from the meat supply chain in six months — a material, system-wide operational change during the disruption period.
The scale change was temporary: by mid-to-late 2020 most plants had resumed operation, and total annual US hog slaughter in 2020 exceeded 2019 levels as the system compensated through later-year processing; on-farm depopulated animals represent a permanent removal within the period but did not alter the long-term scale of US meat production.
Within The System
Key Actors
USDA Food Safety and Inspection Service (FSIS) oversaw inspection at affected federally inspected plants. USDA Economic Research Service (ERS) documented changes in hog slaughter volumes and regional patterns. The Federal Reserve Bank of Kansas City published supply chain analysis. JBS USA temporarily closed its Greeley, Colorado beef plant in April 2020; other major pork and poultry processors made similar decisions across Midwest plants. The American Veterinary Medical Association (AVMA) reported on slaughter delays and emergency depopulation in its June 2020 JAVMA News article. The United States Animal Health Association (USAHA) discussed depopulation response considerations. A coalition led by the Animal Legal Defense Fund (ALDF), joined by the Center for Biological Diversity and other organisations, filed an emergency legal petition with USDA on 26 August 2020 requesting restrictions on relief funding for ventilation shutdown and foam depopulation and creation of enforceable standards. Specific integrators and contract growers who carried out on-farm depopulation are not named in national-level sources.
Editorial Correction Notice
Development date: Set to 1 April 2020 as a placeholder. The JBS USA Greeley, Colorado plant closure in April 2020 is the most specifically documented individual event precipitating the national disruption, but the development is a pattern across multiple plants and weeks rather than a single discrete event. The date of the first major plant closure verified from a named primary source (plant announcement or USDA FSIS notice) would provide the most defensible anchor date.
Scale & Prevalence: The figure of over 10 million hogs removed from the US meat supply chain between April and September 2020 is drawn from a peer-reviewed Frontiers in Veterinary Science synthesis. The partitioning between animals that died on farms, were depopulated by producers, or were slaughtered outside normal channels is not disaggregated in available sources. Precise counts of animals depopulated by species, method, and state are not available in a single official dataset.
Anticipated Effects: USDA’s formal response to the August 2020 ALDF emergency petition and any resulting rulemaking on depopulation standards or relief fund conditions are not documented in sources consulted. The petition’s outcomes require verification against USDA regulatory docket records.
Related record: The public exposure of emergency on-farm depopulation methods — including ventilation shutdown — by AWI, ASPCA, and ALDF in May–August 2020 constitutes a distinct Investigation & Exposure development and warrants a separate Development record. That record would document the exposure, public and professional debate over depopulation methods, and the regulatory petition as its primary system effects.
Key Actors: Most individual plants and integrators involved in specific on-farm depopulation events are not named in national-level sources. Corporate-level identification would require plant-level USDA FSIS or state records.
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