WANG Lin

Lack of adequate controls or decontamination procedures render many breeding chicken flocks susceptible to avian salmonellosis, either from contaminated environments or between birds and their young within the flock. Salmonella Pullorum (S. Pullorum), causing pullorum disease, and Salmonella Gallinarum (S. Gallinarum), causing fowl typhoid, are two major salmonellosis diseases that can seriously i ...

Heat stress in broilers can be defined as the result of metabolic, hormonal, and immune system changes suffered by the birds when they are unable to dissipate sufficient body heat to the environment due to unsuitable conditions. Increases in environmental temperature and relative humidity are key components in this phenomenon. Broilers need different environmental temperatures at different ages to ...