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| Olvera Hernández, Abundio. |
| Se determinó la composición botánica de la dieta del perro de la pradera (Cynomyx mexicanus), cabras y ovinos con la técnica microhistológica, durante cuatro estaciones del año, en un pastizal desértico mediano abierto, en el Rancho los Ángeles, propiedad de la Universidad Autónoma Agraria Antonio Narro de Saltillo, Coah., México. Durante la mayor parte del año los perros de la pradera seleccionaron mayor cantidad de pastos (79 % en promedio, en todas las estaciones del año) en comparación con cabras y ovejas. El total de gramíneas en la dieta de las cabras fue consistente (20 %) para las diferentes estaciones del año, mientras que, en la dieta de ovejas, esta clase de forraje alcanzó su máximo nivel durante el invierno (72 %) y el más bajo en verano (62... |
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Palavras-chave: Análisis microhistológico; Traslape de dieta; Selección de alimento; Pequeños rumiantes; Analysis fecal microhistological; Overlap; Selection of feed; Small ruminant; Ganadería; Doctorado. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/500 |
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| Mérona,Bernard de; Rankin-de-Mérona,Judy. |
| Diets of most of fish species inhabiting a floodplain lake in central Amazonia were studied over a two years and half period. Based on the percentage of relative occurrence of 11 major food categories a classification of species in 11 feeding guilds is proposed. Many species were found to be specialized feeders. Fish, detritus and insects were the most important food resources supporting the fish community in both seasons, but the proportions of fruits, invertebrates and fish were reduced during the low water season. At the community level mean diet overlap between species was low, suggesting efficient resource partitioning within the community. However mean overlap between unspecialized feeders was high. Based on the 23 most abundant species belonging to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Varzea lake; Fishes; Diet; Overlap; Seasonal variability. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200004 |
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| Camacho,Santiago; Bernal,Fernando; Abdo,Miguel; Awad,Richard A.. |
| The aim of this study was to analyze the data of endoscopy and symptoms in 118 Mexican patients with irritable bowel syndrome (IBS), dyspepsia, non-erosive reflux disease (NERD) and erosive esophagitis (EE). IBS criteria were fulfilling for dyspepsia patients in 47%, for NERD in 48%, and for EE patients in 48% of cases. Esophagitis was present in 42% of patients with IBS and in 45% of patients with dyspepsia. A higher prevalence of hiatus hernia was found in EE vs. NERD. Heartburn and acid eructation were associated with the presence of esophagitis; acid eructation, regurgitation and nocturnal pain with duodenitis; and heartburn and regurgitation with hiatus hernia. Males more frequently reported: ucus in feces, abdoinal distension, nausea and gastritis;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dyspepsia; Endoscopy; Irritable bowel syndrome; Overlap; Reflux disease; Symptoms. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000400018 |
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