1	Ruminants
2	What is a ruminant digestive system? List 4 compartments of a ruminant stomach. Describe characteristics of a ruminant animal.
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4	Non-Ruminant Stomach
5	Compartments of Ruminant Stomach Rumen Reticulum Omasum Abomasum
6	Rumen Largest compartment Makes up about 80% of the total capacity of the stomach Mature dairy cow—capacity of 50-60 gallons
7	Rumen Ruminant animal—chews food just enough so it can be swallowed. Rumen—food worked up by millions of bacteria and microorganisms
8	Rumen Bacteria and Microorganisms—transform low-quality protein and some nitrogen compounds into essential amino acids Manufacture vitamins (B)
9	Rumen Food not digested—regurgitated in the form of cud Cud is chewed and then swallowed again, where it is further digested.
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11	Reticulum “Hardware” stomach. Why? Can hold foreign bodies like nails and pieces of wire for long periods of time to prevent injury
12	Reticulum Works in the formation of cud for regurgitation Looks like a beehive—is often called the “honeycomb”
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14	Omasum Made up of many layers of muscular tissue—referred to as “many plies” Removes large amounts of water from food
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16	Abomasum True stomach Functions like a single-stomach
17	Abomasum Food then moves from abomasum to small intestine
18	REVIEW What is a ruminant animal? How many stomach compartments make up the stomach of a ruminant animal? What are the names of these compartments?
19	What is a ruminant digestive system? List 4 compartments of a ruminant stomach. Describe characteristics of a ruminant animal.