High productivity starts with a strong immune system – and Fulvat is designed to build it from within! Unlike quick-fix immune boosters, Fulvat gradually strengthens the innate immune system, enhancing the natural defense mechanisms and overall health over the animal’s lifetime, ensuring stable, productive and sustainable farming!

The enhanced immune response is due to the fact that Fulvat stimulates increased activity of T-lymphocytes (blood cells that recognize pathogens and destroy them), immunoglobulins (IgM and IgG), serum lysozyme (an antimicrobial enzyme) and glutathione peroxidase (a key enzyme in antioxidant defense).

Recommendations for application

Intended for use with daily fattening (grow-out) feeds at post-juvenile development stages. Do not introduce to the diet during active stress or low survival rates. Mix with feed before granulation (at feed mills).
Input rate: up to 3-4,5 kg of Fulvat per 1 ton of feed. It is recommended to gradually switch from the previously used feed to the feed with the addition of the additive, replacing the feeds in stages.

Appearance: fine brown powder. Particle sizes: 0.1-0.2 mm. Withstands short-term temperature exposure up to 180oC during granulation (pelleting)/extrusion without changing the biological activity.

Benefits for aquaculture

Aside from the additive’s immune stimulating function, Fulvat also leads to the normalization of the gut micriobiome, improving digestability and feeding efficiency (FCR). Fulvat increases the activity of digestive enzymes (amylase, lipase and protease), modulates the composition of the intestinal microbiome, promoting the growth of beneficial bacteria and suppressing the growth of pathogens such as salmonella, proteus, staphylococci, streptococci, yeast fungi and others. Fulvat helps maintain an optimal level of feeding efficiency, improves the absorption of nutrients and protein, as well as the use of calcium and trace elements.

Fulvat offers gut and liver protection functions. It has a positive effect on liver health. Fulvic acids and humic acids actively participate in liver metabolism, acting as a filter for toxins and normalizing the level of liver enzymes, reducing the hepatosomatic index and glycogen content in the liver. These acids stimulate general cellular respiration, accelerating the regeneration of liver cells. Fulvat also provides a protective effect on the intestinal mucosa, has anti-inflammatory, adsorptive and antimicrobial properties.


Therapeutic and prophylactic fish feeding practices to normalize liver and gut functions:

Performance indicators: to comprehend the effectiveness of fulvic acids in the formulation of extruded floating fish feed on the liver of 2-year-old sturgeons, the state of the fish's liver was assessed by the hepatosomatic index and by the content of glycogen before and after feeding fulvic acids for 21 days.

The hepatosomatic index of the liver decreased by 30.4%, and the glycogen content in the liver also dropped by 6.6%. On the contrary, these indicators in the control group increased by 6.7% and 2.8% respectively. An improvement in the shape and color of the liver was noted in the experimental group fed with fulvic acids.

The test can be divided into two periods: the first 50 days, when the water temperature did not exceed 16.5°C, and the next 40 days, when it was above 16.5°C. In the first conditional period (on the 45th day), the efficiency of the feed with the addition of the Fulvat fish feed additive was not significantly higher than that in the control. The weight of one fish during this period increased by an average of 400 ± 20 g in the control group and by 440 ± 20 g in the test group. After 45 days of the recording period, the trout of the test group began to consume more feed, which is associated with an increase in average weight relative to the control group. At the end of the experiment, the rate of body weight gain in the experimental group showed a significant increase compared to the control group - by 13.2%. To check the effect of the feeds on the fish, their ichthyopathological dissection was carried out on the 10th, 45th and last day of the test by cutting off the wall of the abdominal cavity and the gill cover in 10 fish.

The Fulvat complex contributed to increased digestion of difficult-to-digest components such as blood meal and corn gluten. The gastrointestinal tract of fish from the test group was in a healthier state.

It is worth noting that during the entire period of the experiment, mortality in the control group amounted to 67 fish, in the test group - 44 fish. These values were significantly different. Obviously, less mortality in the test group is associated with the use of the studied components, including Fulvat, which has an antibacterial inhibitory effect.

By the end of the test the feed conversion ratio in the control group equaled to 1.06 and the feed conversion ratio in the test group equaled to 0.89. Throughout the test, the fish in the control group gained an average of 690 g of weight while the fish in the test group gained an average of 830 g of weight, indicating a 20% increase in weight gains.

Test carried out by and in cooperation with: Prometrika LLC (Russia)
Species: African catfish (Clarias gariepinus)
Number of heads: 1000 (one thousand)
Number of Groups: 2 (test, control)
Test duration: 2 months
Growing conditions: RAS
Average weight at the beginning of the test: 360 g
Fulvat feed additive input rate: 3.00 kg / ton of feeds

By the end of the test, the mortality rate in the control group equaled to 5.65% and in the test group to 3.38%.

The feed conversion ratio in the control group equaled to 0.92 and in the test group: 0.79.

The fish in the test group showed a higher resistance to high stocking density as the stocking density by the end of the test in the test group reached 860 kg of fish / 1m3 and in the control group: 731 kg of fish / 1m3, which also indicates an increase in weight gains by +17.6% compared to the control group.

Eradication of ectoparasitic infestation in Nile Tilapia with a complex of fulvic and humic acids

The challenge faced by all aquacultured species is a range of pathogens, and disease treatment is limited because only a few drugs are approved for use and are ineffective for all pathogen types. Moreover, it usually takes higher concentrations of drugs to affect the pathogen than it takes to harm the fish itself.

There is a need for alternative measures to control diseases among farmed fish!

A test published in the Nature and Science journal by Noor El-Deen, A.E. 1, Mona M.Ismaiel2, Mohamed A. E3. and Omima A.A.El-Ghany3 shows how humic and fulvic acids can successfully replace potentially toxic disease treatment drugs in aquaculture on juvenile (10 weeks old) Nile Tilapia naturally infested with Trichodina and Cichlidogyrus.

The test was carried out by the National Research Center Dokki of Egypt.

Test introduction:
Fish Species: Nile Tilapia (O. Niloticus)
Number of fish in the test: 100
Test groups: 5 (2 groups infected with Trichodina and Cichlidogyrus and treated with Formalin in 20 ppm and 5 ppm; 2 groups infected with Trichodina and Cichlidogyrus and treated with humic and fulvic acids in 1 ppm and 3 ppm; 1 control group infected with Trichodina and Cichlidogyrus and NOT treated with any organic or chemical drugs).
Fish growing stage (age): Juvenile (10 weeks), weighing 80-100 g.
Water temperature: 24°C+-1°.

The mortality rate from Trichodina and Cichlidogyrus in the control group (without any treatment) equaled 24%. The mortality rate in the groups treated with Formalin in both variations didn't show a significant difference and equaled 14 and 19% (5 ppm and 20 ppm accordingly).

Whereas the groups treated with humic and fulvic acids showed a significant drop in mortality. The overall mortality in these groups equaled 1 and 2% (1 ppm and 3 ppm accordingly).