Measuring Ammonia Levels in Poultry Houses

It is a well established fact that in order to maximize broiler performance it is crucial that ammonia levels are kept to a minimum during the growout. Numerous studies have shown that ammonia concentrations over 30 ppm reduce weight gains, increase feed conversions, decrease bird uniformity and yield as well as increase susceptibility to disease. The problem is that many broiler producers have difficulty in smelling the difference between 20 and 40 ppm so they might have harmful levels of ammon...ia in their houses and not even be aware of it.