Different types of digestive system in animals.pdf
- 1. DIFFERENT TYPES OF DIGESTION IN ANIMALS BY DR IQRA BANO CHANDIO
- 2. RUMINANT DIGESTIVE SYSTEM •The ruminant digestive system has a large stomach divided into four compartments— •The Rumen, • The Reticulum, •The Omasum, and • The Abomasum.
- 4. Rumen •The first and largest section of the stomach is the rumen. •In the rumen, solid feed is mixed and partially broken down. •The rumen contains millions of bacteria and other microbes that promote fermentation, which breaks down roughages.
- 5. Rumen •10-20% live weight of cow •cows spend 8hrs grazing/8hrs ruminating - food returned to mouth, where liquid is rapidly re-swallowed, but coarse material re- chewed.
- 6. Reticulum •The reticulum is the second segment of the stomach. •The reticulum is a small pouch on the side of the rumen that traps foreign materials, such as wire, nails, and so forth.
- 7. Omasum •The omasum is the third compartment of the stomach. • The omasum produces a grinding action on the feed and removes some of the water from the feed. Hydrochloric acid and digestive enzymes are mixed with feed in the omasum.
- 8. Abomasum •The abomasum is the fourth compartment of the stomach. •The abomasum is also referred to as the true stomach because it is similar to the stomach in monogastric animals.
- 9. Chewing Cud •The cud that returns to animal’s mouth has been partially digested by bacteria in the rumen, with the digested bits passing along her digestive system. •The undigested cud must be broken down by her teeth some more and swallowed again for further processing. •The cycle repeats until the entire cud is broken down and digested. •The cow will spend approximately eight hours per day chewing her cud if she is healthy and receiving proper nutrition.
- 10. Ruminant Digestion •mouth •esophagus •rumen •reticulum •omasum •abomasum •small intestine •large intestine
- 11. Parts of ruminant stomach
- 13. Macropods
- 14. Cow
- 15. Giraffes
- 16. Elk
- 17. Non ruminant animals •The non-ruminant digestive system only has one stomach where food is broken down into needed nutrients.
- 18. Digestion in non ruminants animals •Feed passes from the mouth to the stomach through the esophagus •To reduce the size of the feed particles •From the stomach it passes through the • duodenum (first part of the small intestine) •Bile and pancreatic secretions enter here • jejunum (second part of the small intestine) •Absorption of nutrients • ileum (third part of the small intestine) •To split food molecules and absorb nutrients
- 19. Monogastric Animal Digestive Tract •Large Intestine •water absorption •feces formation •Colon •Caecum •Rectum
- 20. Cat
- 21. Dog
- 22. Pig
- 23. Poultry
- 24. Human
- 26. Pseudo-ruminants •Horses are not ruminants. They have an enlarged cecum that allows them to digest fibrous materials. Animals of this type are called "hind-gut fermenters." Rats and rabbit have similar digestive systems.
- 27. Parts of a Pseudo-Ruminant •They have similar digestive processes as ruminants but do not have the four-compartment stomach. There is a large Cecum, and a large intestine.
- 29. Rabbits
- 30. Guinea pigs
- 31. Hamsters
- 32. THANKS