Control of ammonia emissions in naturally ventilated dairy cattle facilities in Portugal

Engenharia Agrícola

José Pereira²  Henrique Trindade¹ 

[1] ,Polytechnic Institute of Viseu Agricultural Polytechnic School of Viseu Viseu,Portugal

关键词: facilities;    gases;    methods;    floors;    mitigation techniques;    edifícios;    gases;    métodos;    pavimentos;    técnicas de mitigação;   

DOI  :  10.1590/S0100-69162014000300022

来源: SciELO

【 摘 要 】

We conducted a study of the processes associated to NH3 emission in naturally ventilated dairy cattle facilities, having described factors that regulate NH3 emission, as well as methodologies for measuring these emissions at these facilities. Appropriate techniques to mitigate NH3 emission in facilities located in regions with warm climates were also identified. The most effective mitigation techniques with simple implementation include strategies associated to: (i) installation design and flooring, which lead to reduced emissions, (ii) excreta pre-excretion, namely the use of diets with optimized crude protein content and increased milk production at farm level; and (iii) excreta post-excretion, particularly by changing the conditions of environmental monitoring within the premises, practice introduction or additive application in the management of excreta deposited on floors.

【 授权许可】

CC BY   
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