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The Avian Digestive System By Gemma Dalena Overview of Information Presented: The Avian Digestive System Parts of the Avian Digestive System Esophagus.

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Presentation on theme: "The Avian Digestive System By Gemma Dalena Overview of Information Presented: The Avian Digestive System Parts of the Avian Digestive System Esophagus."— Presentation transcript:

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2 The Avian Digestive System By Gemma Dalena

3 Overview of Information Presented: The Avian Digestive System Parts of the Avian Digestive System Esophagus Stomach Small Intestine Large Intestine Compilation: AECD, California || For more e-learning resources visit

4 Information Guide All Information Provided by this PowerPoint Presentation can be found on the at: Under the California Agriculture Core Curriculum Animal Science Animal Physiology –(CLF3201) The Digestive Process Compilation: AECD, California || For more e-learning resources visit

5 The Avian Digestive System This digestive system is adapted for grinding hard or encased (shells of seeds) food. Compilation: AECD, California || For more e-learning resources visit

6 Parts of the Avian Digestive System The Mouth Saliva is secreted to moisten food and aid in swallowing since avian species do not have teeth. Compilation: AECD, California || For more e-learning resources visit

7 The Esophagus The Esophagus connects the mouth to the stomach. Esophagus Compilation: AECD, California || For more e-learning resources visit

8 The Esophagus has a modification which is called the "crop" where food is stored and further moistened Crop Compilation: AECD, California || For more e-learning resources visit

9 The Avian Stomach Consists of Two Parts : Compilation: AECD, California || For more e-learning resources visit

10 The Avian Stomach Consists of two parts. 1.The "proventriculus" which provides digestive secretions. Proventriculus Compilation: AECD, California || For more e-learning resources visit

11 The Avian Stomach 2. The "gizzard" which is located after the proventriculus, it is very muscular and is used for grinding food. Gizzard Compilation: AECD, California || For more e-learning resources visit

12 The Small Intestine The small intestine varies in length depending on the diet. It is longer in herbivores (plant eating birds) and shorter in carnivores (flesh eating birds). Parts of the small intestine Part of the small intestine Compilation: AECD, California || For more e-learning resources visit

13 The Small Intestine The functions of the small intestine are similar to the small intestine of ruminants and monogastrics Compilation: AECD, California || For more e-learning resources visit

14 The Large Intestine The functions of the large intestine are similar to the small intestine of ruminants and monogastrics. Compilation: AECD, California || For more e-learning resources visit

15 The Large Intestine Ruminants Compilation: AECD, California || For more e-learning resources visit

16 The Large Intestine Monogastrics Compilation: AECD, California || For more e-learning resources visit

17 The Large Intestine The "cloaca" which, is located at the terminal end of the large intestine is a chamber into which the urinary and genital canals open. cloaca Large Intestine Compilation: AECD, California || For more e-learning resources visit

18 The Large Intestine At the junction of the small and large intestine is where the two "ceca" pouches are located. Compilation: AECD, California || For more e-learning resources visit

19 The Large Intestine The two ceca pouches further contribute to aiding in fiber digestion and absorption. Ceca Pouch Compilation: AECD, California || For more e-learning resources visit


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