The structure of the stomach of a cow


Today we will talk about how many cows have stomachs. This is an agricultural animal that feeds on plant food and coarse food. Therefore, its digestive system is designed in such a way that the food is quickly digested, and the maximum amount of nutrients gets into the body. The cow stomach consists of 4 sections, each of which has a name: a cicatrix, a grid, a book and an abomasum. All of them perform certain functions that contribute to the digestion of food.

Scar and mesh Burenka

The scar in cows is the largest chamber of the stomach. In the people it is called tripe and performs important functions in the work of digestion:

  • fermentation;
  • mixing;
  • transformation.

Fermentation in the body of the calf is the initial stage of digestion, which is carried out by intracellular bacteria. In the rumen of a cow with the help of carbon dioxide and methane all products that have fallen into it are split. On the walls of the body are tiny formations with which the nutrients of the feed are quickly absorbed in the stomach of the cow.

The mixing of food in the rumen of cows occurs with the help of muscles. They also contribute to burping and preparing for re-chewing. In addition, in this first part of the stomach there is a huge number of microbes that convert carbohydrates into fatty acids, which provide the animal with energy.

What is the grid for?

When talking about how many stomachs a cow has, the mesh is always mentioned. This is a muscular sac that contains most of the food that is here for 1-2 days.

The volume of the grid is not more than 10 liters. This section in the stomach of cattle is similar to a sieve. It does not allow the penetration of too large pieces of food that can harm. And they head back to the scar.

This section of the stomach has no glands. Its walls consist of small neoplasms - cells, which determine the need for re-processing of food with a scar. If you look at the image of the gastric system of the cow, you can see that the grid is connected with the subsequent chambers of the stomach with a special groove. It looks like a semi-closed pipe. It is with his help that food is sorted. Not enough crushed product in the book will not fall.

What functions does the book

The cow's stomach also includes a book in which the food is between a large number of muscle plates. They overlap each other and move a little deeper into the wall. The organ resembles book pages, which is why it is so called.

The feed is processed by saliva in a cow book and begins to roam. Fiber is digested in this section, which is contained in large amounts in dry grass and silage.

After getting into the book, the food is evenly distributed between the plates. They absorb a large amount of nutrients and water contained in food. As a result, she is severely dehydrated. Thanks to this, the acid that the rennet emits (we’ll talk about it later) is not diluted, and the mineral substances again get into saliva. The weight of the calf's book is considerable, but it contains only 5% of the feed that entered the stomach. An adult cow's book is similar in size to a basketball.

To maintain acidity, the cows produce about 150 liters of saliva per day.

What does a cow aboast do

The structure of the stomach of a cow is very complex. This body, consisting of 4 departments, includes the rennet. It is very similar to the stomach of other mammals.

If we compare the rennet with other departments, it becomes obvious that it is the simplest in structure. This fourth chamber consists of longitudinal rings formed by muscular tissue. The walls of the body are covered with epic mucus. It contains special glands that help process food. The mucosa of this organ includes a large number of glands that secrete gastric juice. On the mucosa are elongated folds.

Cow abomasum volume of about 15 liters. This is where the main digestive processes take place. In the book of food, all the liquid is sucked out, so the food is in a dried state and prepares for the final digestion, which is carried out by the intestines.

Serious diseases of the stomach

If cattle are given a lot of fast-food food, strong gas formation may begin in the stomach. The belching of gases stops completely, with the result that the scar begins to swell. Palpation is performed to confirm the diagnosis. The treatment of large ruminants is first carried out in a conservative manner, and in the absence of a positive result, a scar is punctured.

The cattle are firmly fixed in the standing position, after which the operation is performed using a special tool. The puncture of the scar should be carried out only by an experienced veterinarian, otherwise the animal may die.

Displacement of abomasum is another disease of the stomach, which even highly productive cows suffer. Especially if you feed them wrong. The department of the cattle stomach can shift in different directions. To confirm the disease, the animal is palpated and auscultation is performed.

As a treatment, the cows are prescribed a two-day fasting diet, regular turning over through the back, and medications that affect peristalsis. For example, "Carbachol" in a dosage of 1-3 ml for one subcutaneous injection or "Physostigmine" with great care, and only in the amount determined by the veterinarian.

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