Video Experimental Relacionado
Updated: May 2, 2026
08:02
Fecal Glucocorticoid Analysis: Non-invasive Adrenal Monitoring in Equids
Published on: April 25, 2016
10.1K
Dieta Extruida Completa: ¿Cómo Cambia la Microbiota Fecal Equina Durante la Adaptación a la Ingesta?
Bruna Caroline Franzan1, Irene da Silva Coelho2, Emilly Martins Ramos1
1Animal Science Institute, Universidade Federal Rural do Rio de Janeiro, Rio de Janeiro, Brazil.
Animal science journal = Nihon chikusan Gakkaiho
|January 8, 2026
Resumen
La alimentación de caballos con una dieta extruida completa (CED) altera las bacterias fecales y la fermentación in vitro. La diversidad microbiana disminuyó al eliminar la materia seca, lo que indica la dependencia de la dieta y la importancia del forraje para la salud intestinal equina.
Área de la Ciencia:
- Ciencia Equina; Microbiología; Nutrición Animal
Sus antecedentes:
- El microbioma intestinal equino juega un papel crucial en la digestión y la salud general.
- Los cambios en la dieta impactan significativamente la composición y función de la comunidad bacteriana fecal en los caballos.
- Las dietas extruidas completas (CED) ofrecen una fuente concentrada de nutrientes, pero su efecto en el intestino equino necesita una mayor investigación.
Objetivo del estudio:
- Investigar la adaptación de la comunidad bacteriana fecal en caballos en transición a una dieta extruida completa (CED).
- Evaluar el impacto de la CED en la capacidad fermentativa in vitro de la microbiota fecal equina.
- Determinar la relación entre la materia seca dietética, la inclusión de CED y la diversidad y estabilidad microbiana fecal.
Principales métodos:
- Doce caballos castrados fueron alimentados inicialmente con heno coastcross, y luego se les administró heno exclusivamente (HAY) o niveles crecientes de CED (30%, 60%, 100%) durante 28 días.
- Se recolectaron muestras fecales semanalmente para análisis de microbiota (composición de la comunidad bacteriana) y ensayos de fermentación in vitro.
- Se analizaron los cambios en la abundancia relativa de filos bacterianos específicos y la diversidad microbiana general en respuesta a los tratamientos dietéticos.
Principales resultados:
- El consumo de CED condujo a una reducción en la abundancia relativa de Fibrobacteres, Proteobacteria, Campilobacterota, Lentisphaerae y SR1.
- Verrucomicrobia y Synergistetes mostraron una mayor abundancia con la alimentación de CED.
- La diversidad bacteriana fecal se mantuvo hasta un 60% de CED, pero disminuyó significativamente cuando el heno se retiró por completo, lo que resalta la importancia de la materia seca.
Conclusiones:
- La composición de la microbiota fecal equina depende en gran medida de la dieta.
- La estabilidad de la diversidad microbiana fecal equina está más fuertemente asociada con la presencia de materia seca dietética que con la ingesta de CED.
- La incorporación de CED altera la abundancia microbiana y afecta a los grupos bacterianos capaces de modificar la actividad fermentativa in vitro, lo que impacta la función del intestino posterior.
Más Videos Relacionados
Videos de Conceptos Relacionados
01:50What is Monogastric Digestion?
56.5K
The human body contains a monogastric digestive system. In a monogastric digestive system, the stomach only contains one chamber in which it digests food. Several other animal species also have monogastric digestive systems, including pigs, horses, dogs, and birds. This chapter, however, focuses on the human digestive system.
56.5K
01:29Bacterial Flora of the Large Intestine
1.7K
The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
1.7K
01:30Development of Human Microbiota
61
The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from...
61
01:27Microbiota of the Stomach and Small Intestine
77
The human gastrointestinal (GI) tract is characterized by distinct physicochemical conditions that shape its microbial communities. Among these, the stomach presents a particularly challenging environment for microbial colonization due to its highly acidic pH, ranging from 1 to 3. This extreme acidity effectively limits microbial density. However, certain acid-tolerant microorganisms are capable of surviving in this niche. Notably, Helicobacter pylori can colonize the gastric mucosa,...
77
01:27Microbiota of the Large Intestine
98
The large intestine hosts the most densely populated microbial ecosystem in the human body. This complex community primarily consists of anaerobic bacteria, with Bacillota (formerly Firmicutes) and Bacteroidota (formerly Bacteroidetes) as the predominant groups. The distribution of these microbes varies along different sections of the large intestine, influenced by local environmental factors such as oxygen availability and nutrient composition.The cecum, located at the beginning of the large...
98
01:18Functions of the Gut Microbiota
233
The gut microbiota includes trillions of microorganisms that colonize the human gastrointestinal tract, including bacteria, archaea, viruses, and fungi. This complex ecosystem plays a critical role in maintaining intestinal and systemic health. Most of these microbes inhabit the large intestine, establishing a relatively stable and diverse community that contributes to gut homeostasis through various metabolic, immunological, and protective mechanisms.Dominant bacterial phyla, such as...
233