Effects of Melatonin on Adrenal Cortical Functions of Indian Goats under Thermal Stress

Table 3

Mean and SE of cortisol, aldosterone, and insulin in blood plasma of heat exposed, chemically adrenalectomized, and melatonin administered goats. Values are mean and SEM.

Experiment days	$\text{Treatment}$	Cortisol (nmol/L)	Aldosterone (Pg/mL$)$	Insulin (micro IU/mL)
Heat stress (day 10)	—	$82.74\pm 4.33$	$1.46\pm 0.27$	$7.22\pm 1.12$
Day 11	MET^(1)	$61.94\pm 4.94$^(A)	$0.31\pm 0.11$^(A)	$9.11\pm 1.53$
	MEL^(2)	$48.87\pm 4.93$^(A)*	$0.18\pm 0.06$^(A)	$19.43\pm 7.74$^(A)
Day 12	MET	$67.94\pm 3.82$^(A)	$0.29\pm 0.05$^(A)	$18.43\pm 1.16$^(A)
	MEL	$62.97\pm 4.11$^(A)	$0.28\pm 0.10$^(A)	$26.43\pm 1.23$^(A)
Day 13	MET	$79.23\pm 4.45$	$0.70\pm 0.19$^(A)	$13.77\pm 3.19$
	MEL	$72.88\pm 3.84$^(A)	$0.19\pm 0.05$^(A)	$31.50\pm 7.22$^(A)*
Day 14	MET	$82.80\pm 4.90$	$0.54\pm 0.20$^(A)	$10.82\pm 1.57$
	MEL	$75.93\pm 5.84$	$1.04\pm 0.70$	$29.82\pm 13.10$^(A)*
Day 15	MET	$86.86\pm 6.35$	$0.34\pm 0.09$^(A)	$8.25\pm 1.11$
	MEL	$68.18\pm 4.21$^(A)*	$0.26\pm 0.10$^(A)	$18.77\pm 0.40$^(A)
Day 16	MET	$72.68\pm 5.52$^(A)	$0.62\pm 0.23$^(A)	$18.50\pm 2.84$^(A)
	MEL	$56.42\pm 3.65$^(A)*	$0.29\pm 0.12$^(A)	$23.54\pm 4.49$^(A)
Day 17	MET	$84.89\pm 8.01$	$5.40\pm 1.43$^(A)	$13.62\pm 3.66$
	MEL	$55.64\pm 3.79$^(A)*	$3.52\pm 0.99$^(A)*	$14.31\pm 2.45$

⁽¹⁾Metyrapone; ⁽²⁾Melatonin. ^(A)Indicates statistical significance at $P<.05$ when compared with day 10 value. *Indicates statistical significance at $P<.05$ when compared with corresponding MET value on the same day.