Evaluation of the emitted ammonia from deep beddings and concrete floor used in the swine production

Revista Brasileira de Engenharia Agrícola e Ambiental

Cecon, Paulo R.¹  Paulo, Robson M. de³  Souza, Cecília de F.¹  Baêta, Fernando da C.¹  Tinôco, Ilda de F. F.²  Oliveira, Paulo A. V. de¹ 

[1] Embrapa Suínos e Aves, Concórdia;UFV, Viçosa;UENF, Campos dos Goytacazes

关键词: wood shavings;    rice husks;    gases    INTRODUÇÃO A amônia é o mais importante gás encontrado em instalações para a criação de suínos;    podendo ocorrer em níveis bastante altos;    além de ser um irritante ao sistema respiratório;    pode;    também;    afetar a saúde dos animais e dos trabalhadores que atuam na atividade;   

DOI  :  10.1590/S1415-43662009000200016

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

Swine production in deep bedding appeared as an alternative to the excessive use of water in the activity, however the problem of emission of pollutant gases appeared, mainly ammonia. This research aimed at evaluating the amount of ammonia emitted by wood shavings and rice husks deep beds and concrete floor, compared to acceptable levels for swine production in beds, during December 2002 to April 2003, in Concórdia, Santa Catarina State. Three constructions with dimensions of 12.0 x 10.0 m, divided in 4 boxes with 5.0 x 6.0 m were used, each with a total of 216 animals (Landrace X Large White). The evaluation of air quality was based on the quantification of the ammonia emission, daily measurements, at 10:00 a.m. and 2:00 p.m. The wood shaving bed presented better efficiency in the absorption of the wastes compared to the rice husk, which presented the lowest values of ammonia emission. In the concrete floor the highest values were observed for the gas. As such, the wood shaving bed is indicated as the most appropriate for the swine production in summer conditions for the South of Brazil. For the statistical analysis an entirely randomized experimental design, with 4 replicates for each treatment was used.

【 授权许可】

CC BY-NC