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Estudio de la evolución de las poblaciones metanógenas en la digestión anaerobia del purín y su relación con el aporte exógeno de carbohidratos estructurales o arqueas exógenas

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2013
Author
Seradj, Ahmad Reza
Morazán Nuñez, Henris Jobany
Álvarez Rodríguez, Javier
Abecia, Leticia
Babot Gaspa, Daniel
Yañez-Ruiz, David R.
Balcells Terés, Joaquim
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Seradj, Ahmad Reza; Morazán Nuñez, Henris Jobany; Álvarez Rodríguez, Javier; Abecia, Leticia; Babot Gaspa, Daniel; Yañez-Ruiz, David R.; Balcells Terés, Joaquim; . (2013) . Estudio de la evolución de las poblaciones metanógenas en la digestión anaerobia del purín y su relación con el aporte exógeno de carbohidratos estructurales o arqueas exógenas. XV Jornadas sobre Producción Animal : 42 jornadas de estudio : 14 y 15 de mayo de 2013, Zaragoza, tomo II, p. 869-871. Asociación Interprofesional para el Desarrollo Agrario. http://hdl.handle.net/10459.1/70426.
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Abstract
Three agricultural by products (CHO:wheat straw, apple pulp and sugar beet pulp) as substrate plus 2 levels of freeze-dried cow’s feces (C0-i: 5 and 10 %) as co-inoculum were assigned in quadruplicate during 56 days of in vitro fermentation. Bottles were sampled at days (D) 0, 25 and 56 to determine the evolution of total bacteria, total and hydrogenotrophic methanogens archaea. DGGE was used to study archaea biodiversity in the slurry incubations. CHO addition did not alter bacteria titres but co-i interacts with D (P<0.001), in 5% total bacteria decreased significantly (d0 to d25) but remained steady until d56 (P>0.05) whereas in 10% titres decrease constantly (P<0.05). Incubation time also reduced the titres of archaea (P<0.01). However, hydrogenotrophic population maintained titres along incubation period and increased with Co-i (P<0.05). Most of the archaeal DGGE bands were observed in all samples, indicating a common bacterial population origin and their structure showed that incubation time and Co-i can modify the clustering pattern.
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http://hdl.handle.net/10459.1/70426
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XV Jornadas sobre Producción Animal : 42 jornadas de estudio : 14 y 15 de mayo de 2013, Zaragoza, tomo II, p. 869-871
European research projects
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  • Comunicacions a congressos (Ciència Animal) [35]
  • Publicacions de projectes de recerca del Plan Nacional [2684]

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