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Development Of A Mechanistic Model To Represent The Dynamics Of Particle Flow Out Of The Rumen And To Predict Rate Of Passage Of Forage Particles In Dairy Cattle., S Seo, Cristina Lanzas, L O. Tedeschi, A Pell, D G. Fox
Development Of A Mechanistic Model To Represent The Dynamics Of Particle Flow Out Of The Rumen And To Predict Rate Of Passage Of Forage Particles In Dairy Cattle., S Seo, Cristina Lanzas, L O. Tedeschi, A Pell, D G. Fox
Cristina Lanzas
A mechanistic and dynamic model was developed to represent physiological aspects of particle dynamics in the reticulo-rumen (RR) and to predict rate of passage out of the RR (Kp) of forage particles quantitatively. The model consists of 2 conceptual pools with 3 spatial compartments of particles; the compartment the particle enters is based on functional specific gravity (FSG). The model assumes 2 major pressure gradient-driven flows of particles out of the RR through the reticulo-omasal orifice between 2 consecutive primary reticular contractions. One is associated with the second phase of primary reticular contraction and involves propulsion of particles in the …