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. 2019 Dec 30;99(1):142–150. doi: 10.3382/ps/pez571

Table 1.

Effect of dietary supplementation of the synbiotic in 2 concentrations on the thyroid hormones of heat-stressed broiler chickens at 42 D of age.

Treatment1 Control 0.5× 1.0× SEM P-value
T3 (ng·mL−1) 1.81 1.26 1.30 0.26 0.080
T4 (ng·mL−1) 175.43 164.26 160.52 21.13 0.766
T3/T4 ratio 0.012 0.008 0.008 0.002 0.303
1

Basal dietary supplemented with 0 (Control), 0.5 (Low), and 1 (High) g kg−1 synbiotic (PoultryStar meUS). n = 8 (as each pen was considered as an experimental unit, each pen included 15, each treatment included 8 pens).

T3 = triiodothyronine and T4 = thyroxine.