Inorganic Sulfate and Fish Solubles in Commercial Laying Hen Diets

Three experiments were conducted to evaluate the possible benefits of using inorganic sulfate or fish solubles in laying hen diets. In Experiment 1, a corn-soybean meal basal diet was fed with and without supplemental methionine (Met) and inorganic sulfate (Dynamate). In Experiment 2, fish solubles and/or sodium sulfate were added to a commercial type laying hen diet fed to young hens during hot weather. In Experiment 3, various levels of Met were fed with or without either Cystine (Cys) or sulfate. A response from sulfate was observed when hens received a diet containing less TSAA than their requirement. No response was observed from the addition of sodium sulfate when the diet contained adequate TSAA.