Ruminant Digestive System Student Note Outline

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Ruminant Digestive System Student Note Outline
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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

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The Ruminant Stomach

• Four Compartments
• 1st-Rumen
• 2nd-Reticulum
• 3rd-Omasum
• 4th-Abomasum

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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
  _____________

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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 ________________

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Rumen Reticulum

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

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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

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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
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Abomasum

• Abomasum The ____________stomach
• Corresponds with the stomach of
  ________________________animals.
• Feed is mixed with gastric juice

Makes up 7 of the stomach
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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.

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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
  ________________________.

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