Improver is a highly concentrated product (patented) that is mixed with the drinking water to kill pathogenic bacteria & increase the immune systems defense, It will simultaneously stimulate the good bacteria. the Microflora of the pigeons & the pigeons resistant against bacterial diseases such as: Paratyphoid / Salmonella, Ecoli and the widespread protozoan parasite canker. In periods of stress, lmprover will protect against other diseases Instruction of use 1 measure spoon per 5 liters (or 1 Gallon of water, 3 times a week all year long. Content Formic acid mineral salts of formic acids. vitamin BI. B6, B9 & B12, magnesium, & more.