Table 1.

Ingredient content (percent), chemical composition (% DM), calculated metabolisable energy content (megajoules per kilogramme DM) and hydrogen cyanide content (milligrammes per kilogramme DM) of the experimental diets for the pigs in study 1

Ingredient/component	Diet
	20 to <50 kg				>50 kg
	Basal	+ dl-methionine			Basal	+ dl-methionine
		0.05	0.10	0.15		0.05	0.10	0.15
Rice bran	29	29	29	29	30	30	30	30
Yellow maize	18	18	18	18	21	21	21	21
Ensiled cassava roots	30	30	30	30	30	30	30	30
Ensiled cassava leaves	15	15	15	15	15	15	15	15
Fish meal	8	8	8	8	4	4	4	4
dl-methioninea	–	0.05	0.10	0.15	–	0.05	0.10	0.15
Chemical composition
Metabolisable energy	12.6	12.6	12.6	12.6	12.6	12.6	12.6	12.6
Crude protein	14.1	14.1	14.1	14.1	12.2	12.2	12.2	12.2
Crude fibre	6.8	6.8	6.8	6.8	6.9	6.9	6.9	6.9
Lysine	0.66	0.66	0.66	0.66	0.55	0.55	0.55	0.55
Methionine + cysteine	0.28	0.33	0.38	0.43	0.25	0.30	0.35	0.40
Ileal digestibleb
Lysine	0.51	0.51	0.51	0.51	0.44	0.44	0.44	0.44
Methionine + cysteine	0.21	0.26	0.31	0.36	0.19	0.24	0.29	0.34
Hydrogen cyanide	43.5	43.5	43.5	43.5	43.5	43.5	43.5	43.5

^aNinety-eight percent dl-methionine (Sunmitomo Chemical Co., Ltd./Ajinomoto Co., Inc, Japan)

^bCalculated values based on analysed crude protein and amino acid composition and apparent ileal digestibility data from Nguyen et al. (2010a) and Ngoan and Lindberg (2001)