Table 1.

Body Index and serum concentration of thyroid hormones (THs) in the Jinhua and Yorkshire pig breeds.

Traits	Jinhua	Yorkshire	p-Value
Body weight (kg)	29.33 ± 0.88	47.07 ± 1.93	0.001
Thyroid gland weight (g)	3.20 ± 0.06	4.93 ± 0.38	0.011
Thyroid index (g/kg)	0.109 ± 0.004	0.105 ± 0.009	0.702
Serum total thyroxine level (nmol/L)	30.36 ± 0.76	37.85 ± 1.73	0.017
Serum total triiodothyronine level (nmol/L)	0.53 ± 0.02	1.00 ± 0.12	0.020
Serum free thyroxine level (pmol/L)	9.34 ± 0.20	11.31 ± 0.73	0.058
Serum free triiodothyronine level (pmol/L)	1.84 ± 0.09	2.58 ± 0.33	0.096

All data are expressed as mean ± SEM; and a p-value < 0.05 reveals significant differences.