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Time of issue:2020-02-29 00:00:00










Feed additive bile acid


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Feed additive bile acid

Bile acid is a organic acid extracted from animal gall, which can promote fat to be emulsified, digestion and absorption, participate in the whole metabolism of fat. And can promote bile secretion, prevent fatty liver.
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RENGTY® Bile acid is the main active ingredients of bile produced from cholesterol in liver, which is one synthesis sterols material with multiple bio-activities and play an important role in fat metabolism. It can promote fat metabolism, protect liver and gall,  it is a high efficient fat digestion and absorption promoter with natural biological activity. It can make up for the lack of bile acid secretion of animal, releasing the potential energy of feed, support animal health for poultry, livestock and aquaculture, enhance the feed utilization and lower the feed cost. It is extracted naturally, which is one kind of green and environmental friendly feed additives.


Product name

Bile acid



Bile acid content

20%, 30%, 80%, 90%, 95%


White to yellow powder


It should have no smelly, taste is bitter

Particle size

More than 90% pass through the standard sieve of 60 mesh


Slightly soluble in water

Loss on drying


Plumbum (Pb)

40 mg/kg

Arsenic (As)

≤10 mg/kg


1. Improve the utilization of fat, prevent nutritive diarrhea and reduce feed cost.
2. Promote bile secretion, protect liver and gallbladder, prevent fatty liver disease.
3. Decompose and eliminate endotoxin, promote immunity.
4. Promote the absorption of fat and fat soluble vitamins.
5. Stabilize feed quality, reduce hazards of DDGS, or other anti-nutrition elements.
6. Increase daily weight gain, reduce feed to meat ratio, promote animals' growth.

Action Mechanism

Promote the digestion and absorption of fat and fat soluble substance

1. Emulsify fats and expand contact area with lipase
Bile acid have biosurfactant amphiphilic molecule structure with hydrophilic (hydroxyl, carboxyl) and hydrophobic (alkyl), have strong surface activity, which can effectively emulsifies fat into lipid droplets or chylomicron and improves the solubility of insoluble substances such as cholesterol in water.
When hydrophobic end break the large fat into small oil droplets, the hydrophilic end will wrap around small oil droplets, make fat infused into the water to finish fat hydrolyzation process. So bile acid greatly enlarge the contact area fat and lipase, convenient for fat digestion.
2. Regulate the activity of pancreatic lipase (LPS) and lipoprotein lipase (LPL) to promote the hydrolysis metabolism of fat 
The spatial structure of pancreatic lipase has three cap domains covering its catalytic sites. Bile acid can change this structure and expose the active site to the substrate and play its lipodysis role, so bile acid can activate the activity of pancreatic lipase to promote the hydrolysis metabolism of fat.
The apolipoprotein contained in chylomicron emulsified by bile acid can improve the activity of lipoprotein lipase therby greatly increase the hydrolysis metabolism of fat.
3. Transport fat in the intestinal and promote fat absorption
Bile acids can combine with all decomposed products of fats in the intestinal cavity such as fatty acid, monoglyceride etc. to form a water-soluble mixed micelle. 
The mixed micelle carries all fat decomposed products, large amount of fat-soluble vitamins, carotenoids and other nutrients to reach to surface of small intestinal villus and get into bloodstream, where they are absorbed.
So bile acid serve as necessary carrier for the insoluble fat hydrolysates to reach the intestinal mucosal surface and is important for the absorption of fat decomposed products.
4. Reduce the decomposition of autogenous fat
Hormone-sensitive lipase (HSL) is a rate-limiting enzyme for degradation of autogenous fat.
Bile acids can significantly reduce the activity of hormone-sensitive lipase thereby lower catabolism of autogenous fat, so it significantly reduced the catabolism of autologous fat by regulating the activity of hormone-sensitive lipase.

Protect liver and gallbladder health

1. Prevent fatty liver
Bile acid can transport fat and cholesterol, reduce the accumulation of fat in the liver, promote the compound of VLDL (very low density lipoprotein) and prevent liver diseases such as fatty liver, hepatobiliary syndrome, biliary obstruction and so on.
2. Promote bile secretion
Promote the bile secretion, unimpeded biliary and reduce the burden of liver synthesis bile acid, let the liver rest more.
3. Eliminate toxin
The liver is plagued by mycotoxins (aflatoxin, gibalenone, T-2 toxin, vomiting toxin, etc.), endotoxins (the main component is lipopolysaccharide, which is the remaining cell wall component after the killing of Gram-negative bacteria.) and heavy metals (arsenic, mercury, copper, zinc etc.) for a long time, and its own health is constantly deteriorating. Bile acid can bind and break down endotoxins, relieve the burden of liver and intestines. Help liver detoxification, provide a safe and healthy environment for liver cells, protect liver cells from the invasion of toxins such as mycotoxins, algal toxins, heavy metal ions and drug toxins so on.
4. Promote liver development
Bile acid can improve the digestion, absorption and utilization of fat and provide lipid nutrition for the development of hepatopancreas.
5. Restore liver and pancreas
Bile acid can activate insulin activity, activate thyroxine activity, effectively promote fat burning energy supply, reduce protein loss, promote liver cell repair, and enhance immune protein synthesis
6. Regulate cholesterol metabolism
Bile acid can accelerate the transfer of cholesterol in HDL (high densitylipoprotein), maintain the balance of cholesterol in animal body, and regulate cholesterol metabolism. One third of cholesterol catabolism is achieved through the synthesis of bile acid, which provides an important excretory pathway for cholesterol metabolism.
7. Antioxidant and anti-stress
Bile acid can enhance the activity of SOD (superoxide dismutase), glutathione peroxidase (GSH) and glutathione reductase (GSR), eliminate free radicals in animals’ body and improve the anti-stress ability of animal, resist lipid oxidation and protect hepatopancreas.
8. Promote the growth
Bile acid can increase the level of the main substance IGF-I that regulates animal growth and the main factor GH that promotes cell protein synthesis and cell growth in animal blood, promotes animal growth.


Bile acid circulation

The bile acids are emulsified into glycerol and fatty acids in the small intestine to form the fatty acid-bile salt complex, which is absorbed by the chorionic membrane of the small intestine and separated from the fatty acids, and then transported into the liver through the portal vein. After uptake by liver cells, the free bile acids are synthesized and combined bile acids are discharged into the intestine to complete a hepatointestinal circulation.


Why we choose bile acid?

1. High fat and energy large amount of various unconventinal materials bring heavy burden to the body organs, especially to liver and seriously affect its normal functions.
2. For young animals, immature functions of liver and gall, the concentration of bile acids is hardly reached or not enough to required concentration level, the secretion will be less under stress, leads to intestinal disease such as diarrhea etc.
3. Toxin and hazardous substances such as MDA, mycotocins and heavy metals do harm intestine, reducing utilization of nutrients and destroy liver functions. 
4. Although adult animals have relative mature digestive system, As there are high fat and energy content in diet, which go beyond the capability of liver and cause inadequate secretion of bile acids. Low utilization not only waste energy but also results in metabolism disease which affect animal health and growth performance


This product is suitable for all animals such as pig, poultry, ruminant and aquatic animal, used as functional feed additives: fatty emulsifier, functional intestine promoter.

The recommended dosage of 30% bile acid as follows:

Animal Species

Dosage (g/ton of feed)



Laying hen




Growing and fattening pig


Freshwater fish


Marine fish




Other crustacean


Dairy cow


Beef cattle


Mutton sheep

2-3 g/head/day

It is suggested that bile acids should be used in combination with emulsifier for better effect.


Packaging and storage


20g/bag, 200g/bag, 300g/bag, 500g/bag, 1kg/bag, 2kg/bag, 5kg/bag


20kg/25kg/bag, 25kg/drum or as requirements


If 20kg/bag, 1000kg/50bag/pallet


One 20'GP can contain 10-14 tons if bag


Stored 24 months sealed in a cool, dry and airy place away from light.


Delivery and transport

Port of loading: Qingdao or any port of China as requirements
Lead time: 10-20 days shipment after signed contract

By Express

By Air

By sea

By land

Suitable for under 50kg

Fast: 3-7 days

High cost

Door to door service

Easy to pick up the goods

Suitable for more than 50kg

Fast: 3-7 days

High cost

Port to port service

Professional broker needed

Suitable for more than 500kg

Slow: 7-45 days

Low cost

Port to port service

Profissional broker needed

Suitable for more than 500kg

When by sea can not arrive at you, you can select land transportation, by train or by motor

General speaking, EMS, TNT, DHL, UPS by express, by air and by sea is main shipping terms.
By express for quantity less than 50kg cargo, also called DDU service.
By sea for quantity over 500kg.
By air is available for above 50kg.
For high value products, please select air shipping or DHL express for safe.
If the cargo quantity is more than 500kg, but by sea can not arrive at you, please select land transportation, by train or by motor.


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Contact Us

Contact Name: Susan Lee
Company : Jinan Rentai Import & Export Co., Ltd.
+86-19853139188 / +86-13573136709
Skype : Susan Lee_Rentai
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WhatsApp & Line : +86-13573136709
E-mail :
Address : Room 1009 Fengli Building, 318 Quancheng Road, Jinan, China.
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Time of issue:2019-07-29 00:00:00

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