We recommend using 1000 - 2000 g of VANNAGEN^® / tonne of feed for shrimp.

VANNAGEN^® is a specific formulation of yeast and yeast extract: PSB-Complex^®.

Recommended dosage
1000-2000 g / tonne of feed

Withdrawal period
None

Stability
VANNAGEN^® is heat resistant and can be mixed with feed before pelleting or extruding

Packaging
VANNAGEN^® is packed in 25 kg polyethylene-lined white 5-ply paper bags

VANNAGEN^® supports shrimp to better cope with stress

Summary of performance data. The results show a significant improvement of end weight, feed conversion rate and mortality with both 1000 g and 2000 g of VANNAGEN^® / tonne of feed. The mortality in both VANNAGEN^® groups dropped drastically compared to the control group. Additionally, improved protein efficiency rate leads to lower ammonia production in the ponds. 

VANNAGEN^® improves the performance of shrimp

VANNAGEN^® ameliorates the quality of shrimp

VANNAGEN^® enhances cellular immune response in shrimp

The haemocyte counts provided conclusive support for effects of VANNAGEN^®-supplemented diets. In both small and large shrimp, total haemocyte counts increased with VANNAGEN^®-supplemented diets compared to shrimp fed control diets. This effect was seen in both P. monodon and in P. merguensis.

Haemocytes are key cells for mopping up invading pathogens, so this result is commercially important. The effect was more pronounced in juveniles, with increases in total haemocyte counts of more than 100%. This may be expected given that nutrients will be in high demand in rapidly growing animals. In larger shrimp the effects were also notable. There were increases in total haemocyte count per millilitre of haemolymph up to 30% higher in test subjects as compared to controls.

2005 -Thailand
Shrimp trial
(not yet available)

2004 - Australia
Evaluation of the effects of dietary VANNAGEN^® supplementation of prawn feeds in juvenile Black Tiger prawn, Penaeus Monodon
RESTRICTED AREA: Summary of trial available

2004 - India
Development of the Black Tiger shrimp after feeding with VANNAGEN^® in the early post larval stage
(not yet available)

2004 - India
Efficacy of the product VANNAGEN^® as an immunostimulant on growth and survival of shrimp under pond culture
RESTRICTED AREA: Summary of trial available

2004 - Malaysia
Pond trials with VANNAGEN^®
(not yet available)

2004 - Thailand
The culture of Black Tiger shrimp (Penaeus Monodon) fed with diets containing different feed supplements
(not yet available)

2003 - India
Effects of VANNAGEN^® on growth, feed conversion and mortality of shrimp under controlled laboratory condition
RESTRICTED AREA: Summary of trial available

2003 - India
VANNAGEN^® as a stress reliever in Black Tiger shrimp under extreme salinity conditions
RESTRICTED AREA: Summary of trial available

2003 - Middle East
Larvae feeding trials: Observation of feeding shrimp (Penaeus Vannamei) eith dry feed combined with enrichment
(not yet available)

2003 - Middle East
Several studies and results
(not yet available)

2002 - India
The effect of VANNAGEN^® as an immunostimulant on Black Tiger shrimp (Penaeus Monodon) 
(not yet available)

2000 -Ecuador
Improved survival of shrimp fed a VANNAGEN^® fortified diet upon Whitespot Disease
RESTRICTED AREA: Summary of trial available

1999 - Middle East
Effect of VANNAGEN^® as a supplementary growth enhancer and immunostimulant for Penaeus Vannamei juveniles
RESTRICTED AREA: Summary of trial available