Broiler litter reutilization applying different composting concepts

• Autor(es): Sonoda, LT ; Moura, DJ ; Bueno, LGF [UNESP] ; Cordeiro, DC ; Mendes, AS
• Data: 2014
• Identificador Persistente: http://hdl.handle.net/11449/26439
• Origem: Oasisbr
• Assunto(s): Fermentation; nitrogen; waste treatment; broiler
• Tipo de Documento: Artigo científico
• Idioma: Inglês

Descrição

Submitted by Guilherme Lemeszenski ([e-mail]) on 2013-08-22T18:40:21Z No. of bitstreams: 1 S1516-635X2012000300011.pdf: 330359 bytes, checksum: 2bbe19be4e2b53e1dea685e9b67fda5c (MD5)

Made available in DSpace on 2013-08-22T18:40:21Z (GMT). No. of bitstreams: 1 S1516-635X2012000300011.pdf: 330359 bytes, checksum: 2bbe19be4e2b53e1dea685e9b67fda5c (MD5) Previous issue date: 2012-09-01

Made available in DSpace on 2013-09-30T19:25:46Z (GMT). No. of bitstreams: 2 S1516-635X2012000300011.pdf: 330359 bytes, checksum: 2bbe19be4e2b53e1dea685e9b67fda5c (MD5) S1516-635X2012000300011.pdf.txt: 28097 bytes, checksum: 9570879a6da2646e4ef8812de6098d33 (MD5) Previous issue date: 2012-09-01

Submitted by Vitor Silverio Rodrigues ([e-mail]) on 2014-05-20T15:07:16Z No. of bitstreams: 2 S1516-635X2012000300011.pdf: 330359 bytes, checksum: 2bbe19be4e2b53e1dea685e9b67fda5c (MD5) S1516-635X2012000300011.pdf.txt: 28097 bytes, checksum: 9570879a6da2646e4ef8812de6098d33 (MD5)

Made available in DSpace on 2014-05-20T15:07:16Z (GMT). No. of bitstreams: 2 S1516-635X2012000300011.pdf: 330359 bytes, checksum: 2bbe19be4e2b53e1dea685e9b67fda5c (MD5) S1516-635X2012000300011.pdf.txt: 28097 bytes, checksum: 9570879a6da2646e4ef8812de6098d33 (MD5) Previous issue date: 2012-09-01

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Broiler litter reutilization consists in using the same bedding material to cover the house floor for several broiler flocks. This requires the litter to be treated in order to reduce the amount of microorganisms, according to international recommendations. The aim of this study was to evaluate two methods of broiler litter fermentation based on composting concepts and their effect on litter and the air quality during fermentation in small-scale broiler houses. The experiment was carried out in the Environmental Laboratory I of the School of Agricultural Engineering of the State University of Campinas, utilizing six small-scale houses. Litter from the same grow-out (one, two or three) was distributed in two experimental houses, where it was either piled or spread. Before beginning the treatment, six litter samples were collected from each house and analyzed for total nitrogen content, humidity, pH and microbial counts. Litter humidity, gas emission (NH3 and CO2), environmental temperature, air relative humidity, and air velocity were determined during and after composting. Bacterial population, especially of Salmonella sp, was higher when the litter was piled compared with spread litter. However, fungi population showed a different pattern, decreasing after composting. Nevertheless, both treatments were not able to significantly reduce bacterial counts, specifically Salmonella sp, when the population before and after fermentation were compared

State University of Campinas

State University of Campinas Agricultural Engineering College

Unesp Animal Science College

Technological Federal University of Paraná Agronomy College

Unesp Animal Science College