Contrary to popular belief, cows do not have 4 stomachs; they have 4 digestive compartments:
* The rumen holds up to 50 gallons of partially digested food. This is where cud comes from. Good bacteria in the rumen helps digest the cows food and provides protein for the cow.
* The reticulum is called the
hardware stomach because if cows accidentally eat hardware (like a piece of fencing scrap), it will often lodge here causing no further damage.
* The omasum is sort of like a
filter.
* The abomasum which is like our stomach.
1. The Rumen - this is the largest part and holds up to 50 gallons of partially digested food. This is where the 'cud' comes from. Good bacteria in the Rumen helps soften and digest the cows food and provides protein for the cow.
2. The Recticulum - this part of the stomach is called the "hardware" stomach. This is because if the cow eats something it should not have like a peice of fencing, it lodges here in the Recticulum. However, the contractions of the reticulum can force the object into the peritoneal cavity where it initiates inflammation. Nails and screws can even peroferate the heart. The grass that has been eaten is also softened further in this stomach section and is formed into small wads of cud. Each cud returns to the cows mouth and is chewed 40 - 60 times and then swallowed properly.
3. The Omasum - this part of the stomach is a "filter". It filters through all the food the cow eats. The cud is also pressed and broken down further.
4. The Abomasum - this part of the stomach is like a humans stomach and is connected to the intestines. Here, the
food is finally digested by the cows stomach
juices and essential nutrients that the cow needs are passed through the bloodstream. The rest is passed through to the intestines.
A little poem about the cows stomach!
Brown Cow
No wander you're always eating,
On the plains and on the hill,
Brown cow, no doubt you're hungry,
You have four stomachs to fill!
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