A practical approach on boar sperm cryodamage. Morphofunctional and immunocytochemical study of cryopreserved boar sperm intended for use in artificial insemination 

    Casas Roqueta, Isabel (Date of defense: 2010-07-08)

    L'ús d'esperma criopreservada en la inseminació artificial (IA) d'espècies d'interès productiu permet un major control sanitari i la creació de bancs de germoplasma d'alt valor genètic, entre d'altres avantatges. En el ...

    Anàlisi microscòpica de l'esperma ejaculada i de la maduració epididimària dels espermatozoides de Sus domesticus 

    Briz González, Maria Dolors (Date of defense: 1994-05-17)

    El present treball analitza la morfologia espermàtica de l'ejaculat de Sus domesticus, la histologia del conducte epididimari i la qualitat de l'esperma epididimari. El material d'estudi prové de mascles reproductors porcins ...

    Caracterització de Lactobacils d'origen intestinal i avaluació in vivo del seu poder probiòtic en pollastres 

    Pascual Camps, Mònica (Date of defense: 2003-05-23)

    Una soca de Lactobacillus salivarius resistent a la rifampicina, CTC2197, es va assajar com a probiòtic en pollastres, estudiant la seva capacitat de prevenir la colonització de Salmonella enteritidis C-114 en pollastres. ...

    Development of new, non-invasive tools based on faecal bacterial signatures for the early detection of colorectal cancer 

    Malagón Rodríguez, Marta (Date of defense: 2019-12-13)

    This thesis aims to develop a new non-invasive tool based on faecal bacterial markers for the early detection of colorectal cancer, which is capable of detecting precancerous lesions before the onset of clinical signs. ...

    Diversity, dynamics and activity of Epsilonproteobacteria in a stratified karstic lake. Implications in carbon and sulfur cycles 

    Noguerola Solà, Imma (Date of defense: 2016-07-29)

    This doctoral thesis studies the abundance, diversity, seasonal dynamics and activity of Epsilonproteobacteria in a meromictic basin of Lake Banyoles during three year cycles. We applied a complementary array of molecular ...

    Ecophysiology and philogeny of Faecalibacterium prausnitzii in healthy and diseased gut. Application in Inflamatory Bowel Disease diagnostics 

    López Siles, Mireia (Date of defense: 2016-01-25)

    In this PhD thesis Faecalibacterium prausnitzii populations of patients with gut disease and healthy individuals have been characterized. First, isolates from healthy volunteers have been phenotypically characterised, ...

    Efectes del fotoperíode sobre la qualitat espermàtica de mascles porcins Sus domesticus 

    Sancho Badell, Sílvia (Date of defense: 2002-12-18)

    En el presente estudio se analizan los efectos de los fotoperiodos ambientales de otoño e invierno y los fotoperiodos experimentales de 24, 12 y 0 horas de luz artificial sobre la calidad del semen de machos reproductores ...

    From inocula to biological reactors: molecular characterization of N-cycle bacterial assemblages in a PANAMMOX process 

    Sànchez Melsió, Alexandre (Date of defense: 2015-06-05)

    Nowadays, the combination of the autotrophic nitrification together with heterotrophic denitrification is the most common process for N-removal in the WWTPs. However, when the C:N ratio is low, this two-step process does ...

    Importance of hydrogen-mediated mechanisms for microbial electrosynthesis: regulation at the molecular level 

    Perona Vico, Elisabet (Date of defense: 2022-01-28)

    Microbial electrosynthesis (MES) is engineered to use electric power and carbon dioxide (CO2) as the only energy and carbon sources in reductive bioelectrochemical processes for biosynthesis. This technology is conducted ...

    Intestinal microbiology in Crohn's disease: a study of Escherichia coli as a potential etiologic agent 

    Martínez Medina, Margarita (Date of defense: 2009-12-22)

    La malaltia de Crohn és una malaltia inflamatòria intestinal crònica d'etiologia encara desconeguda. Actualment es pensa que hi participen factors genètics i immunològics que confereixen una susceptibilitat a l'hoste, i ...

    Microbial communities responses in fluvial biofilms under metal stressed scenarios 

    Argudo Fernández, Maria (Date of defense: 2021-02-08)

    This thesis shows how the metals of natural and anthropic origin change significantly the composition of the prokaryotic communities (mainly the composition of bacteria). The β-diversity is the most sensitive variable to ...

    Monitoratge de la malaltia inflamatòria intestinal en la pràctica clínica mitjançant marcadors de la microbiota intestinal en mostres fecals. Estudi prospectiu 

    Miquel Cusachs, Josep Oriol (Date of defense: 2021-12-17)

    The gut microbiota (GM) plays a pivotal role in the maintenance of gut homeostasis, and the pathogenesis of inflammatory bowel disease (IBD) which includes Crohn's disease (CD) and ulcerative colitis (UC). The degree of ...

    Occurrence of antibiotic resistance genes in aquatic microbial communities exposed to anthropogenic activities 

    Marti Serrano, Elisabet (Date of defense: 2014-03-07)

    The overuse of antibiotics has led to the selection of resistant strains. This thesis investigated the occurrence of antibiotic resistance genes (ARGs) in aquatic microbial communities influenced by anthropogenic activities. ...

    Towards the implementation of a biotechnology for biogas upgrading: role of bacteria in siloxane removal 

    Boada Cahueñas, Ellana (Date of defense: 2020-07-20)

    Biogas is a highly recognized alternative to fossil fuels towards a sustainable energy production. Massive use of biogas depends on the removal of contaminants that may affect performance of processing equipment and energy ...