OBJECTIVE LIFE SCIENCE
ANIMAL PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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mastication
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peristalsis
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fermentation
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cytolysis
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Detailed explanation-1: -This is called rumination. The chewing and rumination processes increase the surface area, making the feed particles more accessible to the microbes in the rumen for digestion. Food particles are digested in the rumen by a process of fermentation.
Detailed explanation-2: -Because of its size, the rumen acts as a storage or holding vat for feed. Aside from storage, the rumen is also a fermentation vat. The rumen’s environment favors the growth of microbes. These microbes digest or ferment feed within the rumen and make volatile fatty acids (VFAs).
Detailed explanation-3: -The microbes ferment sugars to produce VFAs (acetate, propionate, butyrate), methane, hydrogen sulfide, and carbon dioxide. The VFAs are then absorbed across the rumen wall, where they go to the liver. Once at the liver, the VFAs are converted to glucose via gluconeogenesis.