Ruminant Digestive System Student Note Outline

Ruminants Ruminant are animals that have four complex stomach structures. This allows them to ___________, which monogastrics ___________digest A few animals with ruminant digestive systems are __________, _____________, and ____________. _________________ are usually ruminant animals. Ruminants eat quickly at first, and break it down later 12/4/2018

Four Compartments: 1st-Rumen 2nd-Reticulum 3rd-Omasum 4th-Abomasum The Ruminant Stomach Four Compartments: 1st-Rumen 2nd-Reticulum 3rd-Omasum 4th-Abomasum 12/4/2018

The liquid part of the food goes straight to the _____________ The Digestive Tract The solid part of a ruminants food goes to the ______________ after being swallowed The liquid part of the food goes straight to the _____________ 12/4/2018

In the rumen, food is broken down by ______________ 1st Compartment: Rumen In the rumen, food is broken down by ______________ Feed is forced back into the mouth where they chew their cud 6-8 times a day This is called ________________ 12/4/2018

There is no division between the rumen & reticulum Together the rumen & reticulum make up _____% of the stomach

Reticulum Reticulum has a lining with small compartments similar to a honeycomb. Hence its nickname the “______________.” Interacts with the rumen in initiating mixing activity and provides additional storage for fermentation. Also prevents foreign materials from entering the other compartments

Makes up 8% of the stomach Omasum Omasum has many folds, often referred to as ______________. Aids in the grinding action of the food Squeezes out ____________ Makes up 8% of the stomach 12/4/2018

Makes up 7% of the stomach Abomasum Abomasum: The ____________stomach Corresponds with the stomach of ________________________animals. Feed is mixed with gastric juice Makes up 7% of the stomach

Small & Large Intestines From the abomasum, the feed enters the ____________________where nutrients are absorbed in the blood system. From the small intestine, the food passes into the _______________where the water is removed and the feed is prepared for excretion.

Review Animals that have ruminant digestive systems eat forage rapidly and later regurgitate the feed, known as the _________. The regurgitated food is chewed thoroughly, swallowed and then more feed is regurgitated. This process is continued until all the feed is ________________________. 12/4/2018

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