FerAppease Swine is a synthetic analogue of the Maternal Swine Appeasing Substance (MSAS). FerAppease Swine can and should be used every time animals are exposed to management and physiological stressors, where suppression of threat perception is desirable (i.e. castration, weaning, grouping, farrowing, transportation, etc.). FerAppease can help you prioritize your pigs' welfare and help them respond better to stressful events while improving your profitability.