Broiler or 45-day raisers will find this video useful, as our Trainer “Tito” Bing suggests a schedule of when water-soluble antibiotics need to be administered to their flock. Chickens are easily stressed by any type of change, and this can lead to lower resistance and disease. In these instances, antibiotics are administered as a preventive measure. Antibiotics are also given when chickens catch cold (sipon). When you finish a round of antibiotics, make sure to give your broilers Zyphyll. Zyphyll is a water-soluble powder supplement that contains enzymes, amino acids, vitamins, electrolytes and probiotics.