Viability of Bovine's Strongyloidea eggs in a system of Anaerobic biodigestion

Detalhes bibliográficos
Autor(a) principal: Mentz, Marcia Bohrer
Data de Publicação: 2004
Outros Autores: Wiest, Jose Maria, Goncalves, Pedro Cabral
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/72291
Resumo: Cattle Strongyloidea egg-viability was studied in closed system of anaerobic biodigestion. Two thirds of a biodigestor were filled with liquified manure from eight Hosltein cows, nacturally infected. For 10 consecutive weeks of observation, the biodigestor internal temperature varied from 24ºC to 28ºC and external temperature, from 26ºC to 33ºC. All the effluent samples showed a constant pH of 7. The samples of the effluent were weekly collected, in a total of 10, and submitted to techniques to detect the presence and viability of the helminth eggs. It was detected a 35-day egg viability. The infective larvae of Haemonchus, Cooperia and Oesophagostomum genus were found until the 14th day of observation and the infective larvae of Trichostrongylus and Ostertagia genus, until the 35th day. Therefore, liquefied cattle manure containing Strongyloidea eggs must remain under anaerobic conditions for at least 35 days before its safe return to the environment.
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spelling Mentz, Marcia BohrerWiest, Jose MariaGoncalves, Pedro Cabral2013-06-08T01:49:28Z2004http://hdl.handle.net/10183/72291000479932Cattle Strongyloidea egg-viability was studied in closed system of anaerobic biodigestion. Two thirds of a biodigestor were filled with liquified manure from eight Hosltein cows, nacturally infected. For 10 consecutive weeks of observation, the biodigestor internal temperature varied from 24ºC to 28ºC and external temperature, from 26ºC to 33ºC. All the effluent samples showed a constant pH of 7. The samples of the effluent were weekly collected, in a total of 10, and submitted to techniques to detect the presence and viability of the helminth eggs. It was detected a 35-day egg viability. The infective larvae of Haemonchus, Cooperia and Oesophagostomum genus were found until the 14th day of observation and the infective larvae of Trichostrongylus and Ostertagia genus, until the 35th day. Therefore, liquefied cattle manure containing Strongyloidea eggs must remain under anaerobic conditions for at least 35 days before its safe return to the environment.El objectivo deste estudio fué evaluar la viabilidad de huevos de Strongyloidea de bovinos en un sistema cerrado de biodigestión anaerobia. Dos partes del biodigestor fueran completadas con estiércol liquido de ocho vacas Holstein Breed, naturalmente infectadas con los parásitos estudiados. Durante 10 semanas consecutivas de observación, la temperatura interna del tanque varió de 24 º hasta 28º C y, externamente, de 26º hasta 33º C. El pH medido fué siempre7. Se examinaran las muestras del efluente semanalmente, en un total de 10, las cuales fueran submetidas a técnicas para detección de la existencia y viabilidad de huevos de helmintos. Se observó que los huevos de Strongyloidea tuvieran viabilidad por 35 días. Se encontraran las larvas infectivas de los generos Haemonchus, Cooperia y Oesophagostomum hasta el 14º día de observación y las del Trichostrongylus y Ostertagia hasta el 35º día. Los datos obtenidos muestran que el estiércol líquido bovino, infectado con huevos de Strongyloidea, deverán ser mantenidos en biodigestión anaerobia por 35 días, por lo menos, antes de su retorno al medio ambiente.application/pdfengParasitología latinoamericana. [Santiago, Chile]. Vol. 59, no. 3/4 (2004), p. 148-152ParasitologiaStrongyloidea eggsViabilityAnaerobic digestionLiquid manureViability of Bovine's Strongyloidea eggs in a system of Anaerobic biodigestionEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000479932.pdf000479932.pdfTexto completo (inglês)application/pdf536383http://www.lume.ufrgs.br/bitstream/10183/72291/1/000479932.pdf1a081703a7312fbee3a87fcf9c5306e6MD51TEXT000479932.pdf.txt000479932.pdf.txtExtracted Texttext/plain20469http://www.lume.ufrgs.br/bitstream/10183/72291/2/000479932.pdf.txt9209f20334f849e30b4867a228ada36eMD52THUMBNAIL000479932.pdf.jpg000479932.pdf.jpgGenerated Thumbnailimage/jpeg2008http://www.lume.ufrgs.br/bitstream/10183/72291/3/000479932.pdf.jpg9b6a2536016fe8dbb26a88c36a390b7eMD5310183/722912019-01-11 04:07:37.430042oai:www.lume.ufrgs.br:10183/72291Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2019-01-11T06:07:37Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Viability of Bovine's Strongyloidea eggs in a system of Anaerobic biodigestion
title Viability of Bovine's Strongyloidea eggs in a system of Anaerobic biodigestion
spellingShingle Viability of Bovine's Strongyloidea eggs in a system of Anaerobic biodigestion
Mentz, Marcia Bohrer
Parasitologia
Strongyloidea eggs
Viability
Anaerobic digestion
Liquid manure
title_short Viability of Bovine's Strongyloidea eggs in a system of Anaerobic biodigestion
title_full Viability of Bovine's Strongyloidea eggs in a system of Anaerobic biodigestion
title_fullStr Viability of Bovine's Strongyloidea eggs in a system of Anaerobic biodigestion
title_full_unstemmed Viability of Bovine's Strongyloidea eggs in a system of Anaerobic biodigestion
title_sort Viability of Bovine's Strongyloidea eggs in a system of Anaerobic biodigestion
author Mentz, Marcia Bohrer
author_facet Mentz, Marcia Bohrer
Wiest, Jose Maria
Goncalves, Pedro Cabral
author_role author
author2 Wiest, Jose Maria
Goncalves, Pedro Cabral
author2_role author
author
dc.contributor.author.fl_str_mv Mentz, Marcia Bohrer
Wiest, Jose Maria
Goncalves, Pedro Cabral
dc.subject.por.fl_str_mv Parasitologia
topic Parasitologia
Strongyloidea eggs
Viability
Anaerobic digestion
Liquid manure
dc.subject.eng.fl_str_mv Strongyloidea eggs
Viability
Anaerobic digestion
Liquid manure
description Cattle Strongyloidea egg-viability was studied in closed system of anaerobic biodigestion. Two thirds of a biodigestor were filled with liquified manure from eight Hosltein cows, nacturally infected. For 10 consecutive weeks of observation, the biodigestor internal temperature varied from 24ºC to 28ºC and external temperature, from 26ºC to 33ºC. All the effluent samples showed a constant pH of 7. The samples of the effluent were weekly collected, in a total of 10, and submitted to techniques to detect the presence and viability of the helminth eggs. It was detected a 35-day egg viability. The infective larvae of Haemonchus, Cooperia and Oesophagostomum genus were found until the 14th day of observation and the infective larvae of Trichostrongylus and Ostertagia genus, until the 35th day. Therefore, liquefied cattle manure containing Strongyloidea eggs must remain under anaerobic conditions for at least 35 days before its safe return to the environment.
publishDate 2004
dc.date.issued.fl_str_mv 2004
dc.date.accessioned.fl_str_mv 2013-06-08T01:49:28Z
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dc.identifier.nrb.pt_BR.fl_str_mv 000479932
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Parasitología latinoamericana. [Santiago, Chile]. Vol. 59, no. 3/4 (2004), p. 148-152
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