SciELO - Scientific Electronic Library Online

 
vol.59 número3-4Protein Profiles of Trypanosoma cruzi and Trypanosoma rangeliNiveles de parasitemia y alteraciones histopatológicas en Mus musculus BALB/c infectado con Trypanosoma cruzi obtenido de Panstrongylus chinai del Valle Chamán, La Libertad - Perú índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Parasitología latinoamericana

versão On-line ISSN 0717-7712

Resumo

BOHRER MENTZ, MÁRCIA; WIEST, JOSÉ MARÍA  e  CABRAL GONCALVES, PEDRO. Viability of Bovine`s Strongyloidea eggs in a System of Anaerobic Biodigestion. Parasitol. latinoam. [online]. 2004, vol.59, n.3-4, pp.148-152. ISSN 0717-7712.  http://dx.doi.org/10.4067/S0717-77122004000300010.

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

Palavras-chave : Strongyloidea eggs; viability; anaerobic digestion; liquid manure.

        · resumo em Espanhol     · texto em Inglês     · Inglês ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons