What is the impact of smog weather on pig breeding?

Hazy weather has two main effects on aquaculture. First, the adverse diffusion conditions caused by "quiet weather" have aggravated the deterioration of the indoor environment. In quiet weather, it is not conducive to the diffusion of harmful gases in the house and the exchange of fresh air outside, which leads to the rapid accumulation of ammonia, odor and carbon dioxide in the house, which leads to the decline of immunity of livestock and poultry and causes harm to them; Second, the smog carrier has become a hotbed for germs to breed and a tool for spreading. Particulate matter in the air is a mixture of floating dust minerals and water. When microorganisms attach to it, it provides good conditions for their growth and reproduction, which is beneficial to the reproduction of pathogenic microorganisms and may induce epidemic situation. Especially when the particle size is less than 2.5 microns, it can directly enter the respiratory tract of livestock and poultry, causing direct infection.