Selenium Yeast

Selenium yeast equivalent to 3000 mg/kg or 3000 ppm selenium

ZamiBoost Selenium Yeast is a source of organic selenium for use in the food of Poultry, Swine, Ruminants and Aquaculture as an aid in the development and maintenance of general health, reproduction and for improvement in performance parameters.

ZamiBoost Selenium Yeast

Zamiboost Selenium Yeast is an organic selenium produced by submerged fermentation of Saccharomyces cerevisiae in a selenium-rich media. The new post-fermentation process can increase the selenium content in the product.

  • Improve the animal’s immune function and increase the antibody level
  • Improve meat quality
  • Reduce PSE [pale, soft, exudative] condition
  • Increase muscle colour and lustre
  • Increase meat water retention and extend meat shelf life
  • Enhances stress resistance, including resistance to heat stress
  • Reduce ascites and sudden death in broilers
  • Improve the reproductive capacity of animals, increase fertilization rate and number of litters and egg production
  • Extend the service life of breeding livestock and poultry.
  • With low toxicity and high conversion rate, ZamiBoost Selenium Yeast can be used to produce selenium-enriched milk, selenium-enriched eggs, selenium-enriched meat.

Mode of action

Selenium yeast compounds are actively absorbed in small intestine by transport system which are shared with amino acids selenomethionine. It is an essential component of glutathione peroxidase [GPx]. which has strong oxidation and immunity enhancing ability, and prevents some diseases in animals. In alliance with vitamin E, selenium forms part of the cell’s defence against reactive metabolites of oxygen which are produced excessively under stress conditions.


  • Safe, stable, high bioavailability, and environmentally friendly
  • Free-flowing, dust free with optimum dispersion quality, ensuring a constant and regular level in the ration
  • Does not react with other ingredients such as metal ions or vitamins, ensuring complete stability in premixes
  • Minimises the toxicity of selenium, and greatly improves the body’s absorption, deposition and storage of selenium
  • The efficient submerged fermentation technology is adopted to enhance stability and the new post-fermentation process increases the selenium content in the product, which is more economical for animal use

Benefits of ZamiBoost Selenium Yeast in Poultry

Breeders and Layers

  • Improves fertility
  • Maintains better selenium concentration in eggs, embryo and newly hatched chick
  • Improves hatchability
  • Better immunity
  • Improves chick liveability
  • Better egg production and egg quality (eggshell quality, nutritive value and shelf life)


  • Better body defense against infections
  • Better body weight gain and FCR
  • Better quality meat (longer shelf life, juicier and more tender meat)
  • Enhances stress resistance, including resistance to heat stress, and reduces ascites and sudden death

Benefits of ZamiBoost Selenium Yeast in Pigs

Weaned pigs

  • Improves nutrient digestibility, anti-inflammatory and anti-oxidative activity (Lvet al.(2020))
  • Enhances growth performance, immune function and anti oxidant capacity (Liu et al. (2021))

Grower-finisher pigs

  • Greater selenium concentration in the loin, liver and hair tissue of grower-finisher pigs than with inorganic selenium (Mahan et al. (2014))

Finisher pigs

  • Greater selenium concentration in the loin, liver and hair tissue of grower-finisher pigs than with inorganic selenium (Bobceket al. (2004))

Sows and piglets

  • Selenium transfer from sows to piglets, colostrum and milk (Svoboda et al. (2008))
  • Improvement of pregnancy on sow reproductive performance and long term effect on their progeny (Mouet al. (2020))

Benefits of ZamiBoost Selenium Yeast in Cattle

Dairy Cattle

  • Increase the antioxidant status of milk as well as colostrum1
  • Reduces the risk of mastitis and milk somatic cell count2
  • Supplementation of Selenium Yeast in low concentration in dry period and period approx. 3 weeks before calving reduces the incidence of ROP3, 4
  • Selenium Yeast is transferred through placenta more efficiently which helps new born calves to strengthen their immature immune system5<
  • Reduction in embryonic death in the first month of gestation1
  • Selenium Yeast increases the selenium content in testes which increases the fertility in cattle1
  • Reduces the incidence of metritis and ovarian cysts during the postpartum period1

Beef Cattle

  • Selenium Yeast is more efficient in production of selenium enriched meat6
  • Better meat tenderness with the use of selenium yeast instead of sodium selenite7
  • Improves meat antioxidant status1
  • Helps in preserving sensory characteristics (colour, flavour and texture) and nutritive value of meat8

1Youcef Mehdiand Dufrasne,2016 (2020)
3P.S.Swain and D. Nagalaxmi,2013
4Harrison and Hancock,1999
5Salles et al.
6J.S. Silva (2020)
7Rossi et al.2015
8Joksimovi´c-Todorovi´cet al.

Benefits of ZamiBoost Selenium Yeast in Aquaculture


  • Improves growth and immunity1
  • Reduces oxidative stress and improves immune response2
  • Improves growth and immunity3
  • As Immunostimulant to control diseases4
  • Improves growth performance. Enhances the immune response and the relative percent survival when fish are experimentally challenged with Aeromonas hydrophila5


  • Increase immunity and disease resistance6
  • Improve growth and survival rate with experimental challenged Taurasyndrome virus7
  • Enhance growth performance, survival and disease resistance against Vibriomimicus8
  • As immunostimulants to control diseases9
  • Improve growth, antioxidant ability and immunity10
  • Improve the growth and antioxidant capacity11

1Channel catfish(Iactaluruspunctatus) Wang and Lovell (1997)
2Malabar grouper (Epinephelusmalabaricus) Lin and Shiau(2007)
3Nile tilapia (Oreochromisniloticus) Abdel-Tawwaband Wafeek(2010)
4Fish Barman
5Rohu (Labeorohita) Baidya and Murthy (2017)
6Giant freshwater prawn (Macrobrachiumrosenbergii) Chiu et al.(2010)
7Pacificwhite shrimp (Litopenaeusvannamei) Sritunyaluckasanaet al. (2011)
8Marron (Cheraxtenuimanus) Rudy and Fotedar(2013)
9Shrimp Barman et al. (2013)
10Oriental river prawn (Macrobrachiumnipponense) Kong et al. (2017)
11Whitelegshrimp (Litopenaeusvannamei) Yu et al. (2021)