Probiolact is a natural growth promoter for increasing production, immunity and protect against stress in animals and Fish. Probiolact is the biological feed additive which acts on increasing the beneficial micro flora specially lactibacillus bacteria, yeasts (sacchahomyces servisia), amino acids, & digesting enzymes in the digestive system. Probiolact doesn't contain chemicals, antibiotics or hormones. Probiolact improves digestion as it increases digesting enzymes and bacterial flora in the digestive system to get rid of pathological bacteria. Probiolact acts on improving metabolism and absorption which help in taking advantage of indigestible food especially proteins which lead to increase growth rate by 15-25% over ordinary rates. Probiolact is an appetizer that prevent impaction. flatuation & normalize PH in the digestive system so prevent acidosis & treat fungal toxins. Probiolact acts on increasing immunity against infections by raising antibodies (IgG). Probiolact improves absorption of vitamins & drugs. Probiolact raises blood haemoglobin level which raise O2 saturation & regulate acid-base balance in blood. Probiolаct has no side effects on animal or even human. & no disadvantage on giving extra doses. Probiolаct has no side effects on animal or even human. Has no side effects on giving extra doses. Probiolact improves water quality in the aquaculture industry and decrease water pollution which leads to better source of nutrients for fish.