Viability of Bovine's Strongyloidea eggs in a system of Anaerobic biodigestion
Autor(a) principal: | |
---|---|
Data de Publicação: | 2004 |
Outros Autores: | , |
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. |
id |
UFRGS-2_651134548e24244f99b2dea0782a5df2 |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/72291 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
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 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/72291 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000479932 |
url |
http://hdl.handle.net/10183/72291 |
identifier_str_mv |
000479932 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Parasitología latinoamericana. [Santiago, Chile]. Vol. 59, no. 3/4 (2004), p. 148-152 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/72291/1/000479932.pdf http://www.lume.ufrgs.br/bitstream/10183/72291/2/000479932.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/72291/3/000479932.pdf.jpg |
bitstream.checksum.fl_str_mv |
1a081703a7312fbee3a87fcf9c5306e6 9209f20334f849e30b4867a228ada36e 9b6a2536016fe8dbb26a88c36a390b7e |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1801224792493260800 |