Steve Meyer, an economist for Kerns and Associates, an agricultural risk management firm, said Tyson’s production numbers may be even more dire.

“By my calculations, last Friday, pork production was down 42.9 percent for all U.S. companies,” he said by phone Monday. “Tyson, by my calculations, was down by 57,780 hogs processed per day from a capacity of 78,500 processed per day. That’s 74 percent short.”

Tyson declined to give further details.

Tyson closed its Columbus Junction, Iowa, plant on April 6 after recording 200 coronavirus infections and at least two employee deaths. (The facility is open now and running at three-quarters capacity, Meyer said.) Next, the company suspended operations at its Perry, Iowa, pork plant on April 20 for deep cleaning. The company slowed and then closed its largest pork plant, in Waterloo, Iowa, on April 22 after 182 cases of covid-19, the disease the novel coronavirus causes, were linked to the facility. And a fourth pork plant, in Logansport, Ind., halted operations April 25 after nearly 900 employees, or 40 percent of the workforce, tested positive for the coronavirus.