Table 11.

The impact of sodium metabisulphite inclusion rates in sorghum-based broiler diets on energy utilisation expressed as N-corrected apparent metabolizable energy (AMEn) from a total of 21 observations and 9 grain sorghum varieties.

Inclusion rate, g/kg	AMEn, MJ/kg DM			Reference
	Control	Treatment	Response
0.25	13.32	13.61	0.29	Selle et al. (2013c)1
2.50	13.32	13.40	0.08
5.00	13.32	13.83	0.51
1.50	11.85	12.30	0.45	Selle et al. (2014a)2
2.25	11.85	12.23	0.38
3.00	11.85	12.16	0.31
3.75	11.85	12.15	0.30
4.50	11.85	12.36	0.51
5.25	11.85	12.28	0.43
1.75	11.95	11.58	−0.37	Truong et al. (2016a)2
1.75	11.34	11.79	0.45	Truong et al. (2016c)2
3.50	11.34	11.72	0.38
1.75	11.44	11.91	0.47
3.50	11.44	11.92	0.48
1.75	11.05	11.27	0.22
3.50	11.05	11.40	0.35
1.75	11.75	11.81	0.06
3.50	11.75	12.04	0.29
1.75	11.56	11.73	0.17
3.50	11.56	12.15	0.59
2.75	11.10	11.19	0.09	Selle et al. (2016b)2
Mean	Mean	Mean	Mean
2.83	11.58	11.89	0.31

¹Atypical ‘sorghum only’ diets.

²Conventional sorghum-based diets.