Review of Measures to Control Airborne Pollutants in Broiler Housing

Abstract

Broiler housing is a significant source of airborne pollutants from animal production, which lead to degradation of indoor air quality and outdoor emissions, particularly ammonia, nitrous oxide, carbon dioxide, methane, hydrogen sulphide, odours and particulate matter. In this chapter, we first analyse the current state of the art on the consequences of these pollutants on broiler farming, farm workers, and the environment. This includes the factors affecting pollutants generation, quantification, and mitigation measures suppressing airborne pollutants. Next, we describe different best available techniques for environmental protection and sustainability of broiler production, namely feeds and feeding management, feed supplements, bedding management and treatment of exhaust air. Thus, broiler farms should select mitigation strategies based on several considerations, such as location, climate conditions, environmental policies and financial resources.

Computational Fluid Dynamics Modeling of Ammonia Concentration in a Commercial Broiler Building

“…On the other hand, in configurations S1, S2, and W1 the NH 3 concentration substantially increased after the mid-length of the tunnel. It may be also noticed in Figure 8a,b that the NH 3 concentration distribution was rather similar at heights of z = 0.5 m and z = 1.8 m. Previous studies [3,4,6] recommended a limit of 7.6 mg/m 3 (10 ppm) of NH 3 to maintain a good indoor air quality on broiler buildings, but the threshold value of 15.2 mg/m 3 (20 ppm) is recommended as the limit for a short-period exposure. Note that long-term NH 3 toxicity in the broiler building may increase the susceptibility of birds to the adverse effects of NH 3 even at 15.2 mg/m 3 [4,6].…”

“…The average annual gas emission rates from broiler houses using new litter material in each production cycle varies greatly among European countries, with values from 0.06 to 0.45 g day −1 broiler −1 for NH 3 , 0 to 46 mg day −1 broiler −1 for N 2 O, 55.2 to 98.4 g day −1 broiler −1 for CO 2 , and 0 to 50 mg day −1 broiler −1 for CH 4 [6].…”

The Effect of Nanosilver-Based Preparation Added to Litter on Silver and Antagonistic Elements Content in Broiler Tissues and Organs

“…Animal production, including poultry farming, is inextricably linked to environmental impact in the form of odor or microbial pollution, so numerous studies are being conducted on the application of various types of measures that can reduce emerging environmental problems [1,2]. Among the entire pool of available disinfectant and fumigant formulations, silver nanoparticles occupy an important role.…”