Feed Additives - Vemo 99

VemoHerb BP - a natural herbal growth promoter

VemoHerb® BP: A natural herbal Bulgarian growth promoter



The necessity of use of growth promoters

In modern poultry production, the newly born chickens 1) have no contact with maternal faeces and their gastrointestinal tract (GIT) is sterile; thereby normal microflora is slowly colonized while the GIT resident microorganisms have a profound impact on the health of bird and 2) do not receive maternal antigens to develop the immunity system. Accordingly, growth promoters (nutrient or non-nutrient feed additives) are added to the feed or drinking water to enhance the microflora of intestines, develop immunity system and stimulate digestive enzymes secretion leading to the improved feed utilization and growth of poultry.


Antibiotic growth promoters

Antibiotics have been used to reduce the diseases and more recently as growth promoters to enhance performance. The mode of action of antibiotics may be explained by an inhibiting effect on certain intestinal bacteria that produce toxins or compete with the host for available nutrients resulting in increased nutrients availability and better body weight gain and FCR. However, many countries tended to prohibit these feed additives because of increased antibiotic resistance in bacteria and their residual effects on poultry products and harmful effects on human health. Consequently, there has been a big push to find alternatives that have potential to minimize the problems related to the withdrawal of antibiotics from diets and reduce enteric diseases in poultry.


Antibiotic alternatives

Prebiotics, probiotics, organic acids and phytogenics claimed to be alternatives to antibiotics have effects on the ecosystem of GIT microflora either directly or indirectly and gut health. It is clear that controlling the microflora could positively influence poultry performance.


Prebiotics and the mode of action

Prebiotics are non-digestible carbohydrates, some peptides and proteins and certain lipids. The mode of action of these ingredients are thought to function as competitive attachment sites for pathogenic bacteria enhancing the growth of one or a limited number of beneficial microorganisms in the gut and lowering pH through lactic acid production in intestine, an environment that is unfavorable to pathogens.


Probiotics and the mode of action

Probiotics are the viable microbial supplements of a single or mixture of bacteria strain(s). The proposed mode of action for the beneficial effects of probiotics are producing inhibitory compounds like volatile fatty acids and hydrogen peroxide which lead to the enhancement of growth of nonpathogenic facultative anaerobic and gram positive bacteria and inhibition of the growth of harmful bacteria, adjusting to immune responses and providing digestive enzymes.


Organic acids and the mode of action

Organic acids generally lower the pH and buffering capacity of the diet, reduce the pH within the stomach, increase nutrient digestibility, promote the growth of beneficial bacteria and decrease intestinal bacterial growth.


Phytogenics and the mode of action

Application of medicinal plants comes back to many thousands years ago, but these days among the feed additives, have drawn more attention due to this historical background, rising costs of prescription drugs or other additives and their prophylactic effects, so considered as healthy- and growth-promoting feed additives regarding their mode of action including: improving feed flavor and intake, stimulating the secretion of digestive enzymes, increasing gastric and intestinal motility, gut development and antimicrobial activity.

VemoHerb® BP

Bulgaria is among the first countries in Europe in the export of medicinal and aromatic plants and the VemoHerb® BP is an herbal fodder additive produced by “Vemo-99” Ltd. (Sofia, Bulgaria) which has attracted considerable attention as an herbal growth promoter due to its palpable astringent, anti-microbial, anti-inflammatory, anti-oxidative and hepatoprotective effects. This product is composed of a proprietary blend of herbal extracts, specifically combined to provide for amazing results.

The herbal components in product are with high content of pectin (80-90 g/kg DM), a type of NSP with uronic acid as building blocks, which is highly soluble in comparison with other pectin sources and thus chicory should be classified as a highly digestible and palatable fibrous feed ingredient for chicken and pigs that improves the appetite and digestion. These components typically show the presence of inulin (68%; the most constituent), sucrose (14%), cellulose (5%), protein (6%), ash (4%), and other compounds (3%; including esculin, coumarins, bitter sesquiterpene lactones, flavonoids, and vitamins in dry matter. Inulin, is a chain of fructans (oligofructose) which is a good source of energy and enhances gastrointestinal absorption of minerals such as calcium, magnesium, and iron. Inulin decreases the pH by increasing the absorption of short chain fatty acids. Inulin-type fructans are responsible for the prebiotic effect of this plant that improves intestinal functions. The active compounds coming from the other plant extracts in VemoHerb® BP are volatile oils (monoterpenes and sesquiterpens), phenylpropane derivatives, flavonoids (flavonols, apigenine derivatives, scutellareine derivatives and luteoline derivatives), tannins and oligo-elements which possess the marked astringent, anti-microbial, anti-inflammatory, antioxidative and hepatoprotective effects.

While using VemoHerb® BP, it is not necessary to observe any withdrawal period before slaughtering the animals or obtaining the eggs for people consumption or technological treatment. VemoHerb® BP is compatible and can be applied along with vitamins, macro and microelements, amino acids, organic acids, different antioxidants, antibiotics and other chemiotherapeutists. The in-vivo trials have shown the economic effect of VemoHerb® BP by weight gain increment and FCR improvement. 

Suggested dosage of VemoHerb® BP

100-200 g/t fodder (concentrated form)

  • 200 g/t fodder (starter and grower)
  • 100 g/t fodder (finisher)


Brochure Compiler:

ZYKA (Zist Yar Koshan Afra) Company, Mashhad, Iran

Dr. Vahid Khaksarzareha (Ph.D. in Poultry Nutrition and Management), Managing Director

Dr. Hamideh Hashemipour (Ph.D. in Poultry Nutrition and Management), Chairwoman of the Board



VEMO 99 Ltd., Sofia, Bulgaria.