Hog slaughtering plants are being shut down due to COVID-19. The usual assumption is that after a deep cleaning and installing some safe-distancing measures, the plants will re-open and the workers will come back. As I understand it, workers who are unemployed due to COVID-19 would qualify for an average of $380/week in state unemployment benefits, topped up with $600/week bonus benefit from CARES Act. So the incentive to stay home (albeit "looking for work") would be $980/week.
The counties where hog, beef and chicken processing plants are located have a rate of COVID-19 infection 75% greater than than the US average, according to reporting in USA Today. It seems likely that more closures will occur in future. For hog farmers, already 15% of the nation's hog slaughtering plants are shut down. Hog farmers who have market-ready pigs and no place to sell to, must contemplate culling. USA Today estimated that hundreds of thousands of pigs are about to be culled. By the first week of May, we can expect significantly higher retail prices and reduced quantities of pork products available for sale. Predictably, big box retailers will be better able to stock their shelves than smaller retail stores.
Conditions of excess capacity also have affected dairy farms (dumping milk) and broiler operations (breaking eggs).