Lecture7 - Growth and Development of the Ruminant...

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Growth and Development of the Ruminant Gastro-Intestinal Tract Development of Rumen Papillae Papillae develop from the lamina propria of the rumen lining Serous membrane Muscular tunic Rumen mucosa Contains epithelial layer and lamina propria Cross section of the rumen
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Growth and Development of the Ruminant Gastro-Intestinal Tract Development of Rumen Papillae Papillae develop from the lamina propria of the rumen lining Lamina propria Epithelial layer Cross section of the rumen Papillae begins as a capillary loop pushing up the lamina propria and the epithelial layer to form the papillae.
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Growth and Development of the Ruminant Gastro-Intestinal Tract Reticulorumen growth is delayed (inhibited) by all milk diets. Factors Affecting Rumen Development Rumen from a 6 week old calf fed milk only. Note thin walls of rumen and minimal papillae growth.
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Gastro-Intestinal Tract Hay, forage, fiber stimulates reticulorumen development and growth through increased musculature of the rumen walls and papillae growth. Addition of concentrates to hay diets increase papillae development due to increased production of VFA’s from microbial fermentation. Factors Affecting Rumen Development
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Lecture7 - Growth and Development of the Ruminant...

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