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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | de la Mora-Sherer, D. Téllez-Bañuelos, M. C. Palafox-Luna, J. A. Zaitseva, G. P. Trujillo-García, E. A. Casas-Solís, J. Horta-Fernández, J. L. Juárez-Carrillo, E. Huízar-López, M. R. Castro-Félix, P. Santerre, A. |
| Description | Author Affiliation: Santerre A ( Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Zapopan, Jalisco, México.); Téllez-Bañuelos MC ( Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Zapopan, Jalisco, México ceciliat@prodigy.net.mx.); Casas-Solís J ( Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Zapopan, Jalisco, México.); Castro-Félix P ( Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Zapopan, Jalisco, México.); Huízar-López MR ( Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Zapopan, Jalisco, México.); Zaitseva GP ( Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Zapopan, Jalisco, México.); Horta-Fernández JL ( Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, México.); Trujillo-García EA ( Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Zapopan, Jalisco, México.); de la Mora-Sherer D ( Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Zapopan, Jalisco, México.); Palafox-Luna JA ( Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Zapopan, Jalisco, México.); Juárez-Carrillo E ( Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, México.) |
| Abstract | A time-course feeding trial was conducted for 120 days on juvenile channel catfish (Ictalurus punctatus) to study the effects of diets differing in oil source (fish oil or soy oil) and supplementation with a commercial probiotic. Relative levels of Δ6-fatty acid desaturase (Δ6-FAD) and fatty acid elongase (FAE) expression were assessed in brain and liver tissues. Both genes showed similar expression levels in all groups studied. Fish weight-to-length relationships were evaluated using polynomial regression analyses, which identified a burst in weight and length in the channel catfish on day 105 of treatment; this increase was related to an increase in gene expression. Mid-intestinal lactic acid bacterium (LAB) count was determined according to morphological and biochemical criteria using API strips. There was no indication that intestinal LAB count was affected by the modified diets. The Cunningham glass adherence method was applied to evaluate phagocytic cell activity in peripheral blood. Reactive oxygen species (ROS) generation was assessed through the respiratory burst activity of spleen macrophages by the NBT reduction test. Probiotic-supplemented diets provided a good substrate for innate immune system function; the phagocytic index was significantly enhanced in fish fed soy oil and the probiotic, and at the end of the experimental period, ROS production increased in fish fed soy oil. The substitution of fish oil by soy oil is recommended for food formulation and will contribute to promoting sustainable aquaculture. Probiotics are also recommended for channel catfish farming as they may act as immunonutrients. |
| e-ISSN | 16765680 |
| Journal | Genetics and Molecular Research |
| Issue Number | 3 |
| Volume Number | 14 |
| Language | English |
| Publisher | Fundação de Pesquisas Científicas de Ribeirão Preto |
| Publisher Date | 2015-09-22 |
| Publisher Place | Brazil |
| Access Restriction | Open |
| Subject Keyword | Acetyltransferases Metabolism Fish Proteins Ictaluridae Linoleoyl-coa Desaturase Genetics Animal Feed Animals Aquaculture Body Weight Brain Enzymology Diet Gastrointestinal Microbiome Gene Expression Growth & Development Liver Macrophages Physiology Phagocytosis Probiotics Administration & Dosage Respiratory Burst Soybean Oil Research Support, Non-u.s. Gov't Discipline Genetics Discipline Molecular Biology Discipline Bioinformatics |
| Content Type | Text |
| Resource Type | Article |
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