Browsing by Author "XX677044"
Now showing items 1-20 of 40
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Romero Ormazábal, Jaime; Navarrete Wallace, Paola (SPRINGER, 2006-05)In this study, we used a 16S rDNA-based approach to determine bacterial populations associated with coho salmon (Oncorhynchus kisutch) in its early life stages, highlighting dominant bacteria in the gastrointestinal tract ...
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Romero Ormazábal, Jaime; Navarrete Wallace, Paola; Feijóo, Carmen Gloria (2012)
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Prieto Durán, Carmen; Jara, Carla; Mas, Albert; Romero Ormazábal, Jaime (2007)The presence of acetic acid bacteria populations on grape surfaces from several Chilean valleys is reported. The bacteria were analysed at both the species and the strain level by molecular methods such as RFLP-PCR 16S ...
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Prieto Durán, Carmen; Jara, Carla; Mas, Albert; Romero Ormazábal, Jaime (2007)The presence of acetic acid bacteria populations on grape surfaces from several Chilean valleys is reported. The bacteria were analysed at both the species and the strain level by molecular methods such as RFLP-PCR 16S ...
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Espejo Torres, Romilio; Romero Ormazábal, Jaime (1997)Most copper bioleaching plants operate with a high concentration of sulfate salts caused by the continuous addition of sulfuric acid and the recycling of the leaching solution. Since the bacteria involved in bioleaching ...
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Pizarro, José; Jedlicki Corbeaux, Eugenia; Orellana Orellana, Omar; Romero Ormazábal, Jaime; Espejo Torres, Romilio (1996)The composition of bacterial populations in copper bioleaching systems was investigated by analysis of DNA obtained either directly from ores or leaching solutions or after laboratory cultures. This analysis consisted of ...
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Rojas, Rodrigo; Miranda, Claudio D.; Opazo Salas, Rafael; Romero Ormazábal, Jaime (Elsevier, 2015)Three strains (VPAP16, VPAP18 and VPAP23 strains) were isolated as the most predominant organisms from 3 different episodes of massive mortalities of larval cultures of the Chilean scallop Argopecten purpuratus occurred ...
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Salas Leiva, Joan; Opazo Salas, Rafael; Remond, Camille; Uribe, Eduardo; Velez, Antonio; Romero Ormazábal, Jaime (Universidad Católica de Valparaíso, 2017)A comparative analysis of the cultivable intestinal microbiota of farmed (AF) and wild-caught (WF) Paralichthys adspersus was performed. The 16S rRNA gene was used for taxa identification, and the ITS region for strain ...
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Opazo Salas, Rafael; Valladares Boasi, Luis; Romero Ormazábal, Jaime (Universidad Católica de Valparaíso, 2017)Variable individual growth rate is a phenomenon observed in fish cohorts that influences the aquaculture performance and fish cohort ecological viability. Our aim was to compare gene expression patterns of key growth genes ...
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González Escalona, Narjol; Martínez Urtaza, Jaime; Romero Ormazábal, Jaime; Espejo Torres, Romilio; Jaykus, Lee-Ann; De Paola, Angelo (AMER SOC MICROBIOLOGY, 2008-04)Vibrio parahaemolyticus is an important human pathogen whose transmission is associated with the consumption of contaminated seafood. There is a growing public health concern due to the emergence of a pandemic strain causing ...
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Effect of dietary carbohydrate-to-protein ratio on gut microbiota in atlantic salmon (Salmo salar) Villasante, Alejandro; Ramírez, Carolina; Catalán, Natalia; Opazo, Rafael; Dantagnan, Patricio; Romero Ormazábal, Jaime (MDPI AG, 2019)Atlantic salmon (Salmo salar) is a carnivorous fish species whose productive performance tends to be suboptimal when fed low-cost carbohydrate rich meals. It is of interest to study the dynamics of gut microbiota communities ...
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Vargas-Bello-Pérez, Einar; Bionaz, Massimo; Garrido Sartore, Macarena; Cancino Padilla, Nathaly; Morales, María Sol; Romero Ormazábal, Jaime; Leskinen, Heidi; Garnsworthy, Philip C.; Loor, Juan J. (MDPI, 2020)Simple Summary: The objective of this study was to determine the effects of degree of unsaturation of dietary lipids on lipid-related metabolites and transcription of genes involved in lipid metabolism in subcutaneous ...
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Navarrete Wallace, Paola; Toledo, Isabel; Mardones, Pamela; Opazo, Rafael; Espejo Torres, Romilio; Romero Ormazábal, Jaime (WILEY-BLACKWELL PUBLISHING, 2010-09-16)The application of natural and innocuous compounds has potential in aquaculture as an alternative to antibiotics. We evaluated the effect of diet supplementation with Thymus vulgaris essential oil (TVEO) on the allochthonous ...
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Vargas-Bello-Pérez, Einar; Geldsetzer Mendoza, Carolina; Cancino Padilla, Nathaly; Morales, María; Leskinen, Heidi; Garnsworthy, Philip C.; Loor, Juan J.; Romero Ormazábal, Jaime (MDPI, 2020)Simple Summary This study analyzed effects of vegetable oils fed to dairy cows on abundance of genes related to lipid metabolism in milk somatic cells (MSC). During 63 days (9 weeks), 15 cows were allocated to 3 treatments: ...
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Bravo, Williams; Dumorne, Kelly; Beltrán Lissabet, Jorge; Jara Seguel, Pedro; Romero Ormazábal, Jaime; Farías, Jorge G.; Risopatrón, Jaime; Valdebenito, Iván; Figueroa, Elías (Elsevier, 2020)The aim of this study was to evaluate effects of selection using the Percoll density gradient method on motility, mitochondrial membrane potential (Delta Psi Mit) and fertility in a subpopulation of testicular spermatozoa ...
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Opazo, Rafael; Plaza Parrochia, Francisca; Cardoso Dos Santos, Gustavo R.; Carneiro, Gabriel R.A.; Sardela, Vinicius F.; Romero Ormazábal, Jaime; Valladares Boasi, Luis (Frontiers Media S.A., 2019)Food intake in fish and mammals is orchestrated by hypothalamic crosstalk between orexigenic (food intake stimulation) and anorexigenic (food intake inhibition) signals. Some of these signals are released by peripheral ...
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Jorquera Ramírez, Carolina; Romero Ormazábal, Jaime (Frontiers Media, 2017)The intestinal microbiota is involved in a wide range of biological processes that benefit the host, including providing nutrition and modulating the immune system. Fine flounder (Paralichthys adspersus) is a flatfish of ...
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Villasante, Alejandro; Ramírez Álvarez, Carolina; Catalán, Natalia; Romero Ormazábal, Jaime (Japanese Society of Microbial Ecology, 2017)The aim of the present study was to identify major bacteria associated with the swim bladder in the rainbow trout, Oncorhynchus mykiss. We extracted DNA from the swim bladder and gut contents in order to perform a temporal ...
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Rojas, Rodrigo; Miranda, Claudio D.; Santander, Javier; Romero Ormazábal, Jaime (2016)The VPAP30 strain was isolated as the highly predominant bacteria from an episode of massive larval mortality occurring in a commercial culture of the Chilean scallop Argopecten purpuratus. The main aims of this study were, ...
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Villasante, Alejandro; Ramírez, Carolina; Rodríguez, Héctor; Catalán, Natalia; Díaz, Osmán; Rojas, Rodrigo; Opazo, Rafael; Romero Ormazábal, Jaime (Nature Publishing Group, 2019)Our knowledge regarding microbiota associated with the swim bladder of physostomous, fish with the swim bladder connected to the esophagus via the pneumatic duct, remains largely unknown. The goal of this study was to ...