Testing the birds stress hormone after ASR signal exposure is very important for two reasons:
1.It verifies that the signal transmission stays within the Hindbrain providing scientific proof that the signal has not been processed by the Talamus and that Hypothalamic– pituitary–adrenal axis is not being activated.
2.It further tells us that this involuntary reflex does not increase the stress level in the birds. By not increasing the stress hormone in birds, we are deflecting them not based on fear but based on involuntary reflex reaction, which will not affect their health and well-being in any way.