Table 2. Effects of dietary selenium sources¹⁾ on body and carcass composition in commercial broiler chickens

Traits	T1	T2	T3	RMSE	p-value
Live weight (kg)	2.58	2.61	2.66	0.09	0.092
Carcass weight (kg)	2.08	2.09	2.92	0.07	0.251
Body composition (% of live weight)
Carcass dressing	80.53	80.13	79.92	1.85	0.603
Abdominal fat	1.01	0.97	0.95	0.34	0.868
Liver	2.16	2.29	2.31	0.34	0.378
Gizzard	1.01	1.04	0.99	0.16	0.659
Heart	0.34	0.33	0.35	0.09	0.826
Spleen	0.07	0.06	0.06	0.02	0.579
Head	1.86	1.84	1.91	0.68	0.925
Neck	3.36	3.44	3.36	0.68	0.925
Carcass composition (% of carcass weight)
Breast	26.41	26.83	26.48	1.93	0.783
Fillet	4.97	4.87	4.64	0.72	0.375
Wing	10.85	10.18	10.13	1.63	0.343
Leg	27.57	27.88	28.43	1.23	0.120

The T1, T2, and T3 treatment groups were fed diets containing 0.3 ppm Na-Se, 0.15 ppm Na-Se+0.15 ppm Zn-L-SeMet, and 0.3 ppm Zn-L-SeMet, respectively.
Zn-L-SeMet, Zn-L-selenomethionine.