What is the treatment of Kant's pig farm?

Technician internship period is 3500-4000, 5k-6k+ full employment.

Large-scale pig farms are easy to breed many germs. Based on the principle of epidemic prevention and sanitation, pig farms should be selected in an open and flat area with higher terrain and more than 1 km from residents or market towns. Moreover, the pigsty should be north-south, which is conducive to natural ventilation.