Table 1. Formulated and analysed macronutrient concentrations (g/kg) in experimental diets.

	Formulated				Analysed1
Diet	AMEn2	Protein	Lipid	Starch	Protein	Lipid	Starch	Dry matter (DM)
1	11.25	166	21	420	184	27	359	862
2	11.24	185	25	373	204	26	335	859
3	11.26	190	35	330	198	39	306	861
4	11.25	186	63	280	188	73	276	875
5	12.37	181	23	468	194	26	389	858
6	12.37	193	30	427	203	31	374	858
7	12.37	193	51	368	202	52	350	855
8	12.38	199	71	316	202	76	296	867
9	13.50	195	26	515	214	29	414	854
10	13.50	200	34	480	221	36	404	856
11	13.49	195	67	407	205	63	376	846
12	13.51	213	79	352	219	75	314	854

¹protein was analysed as N x 6.25; lipid was analysed by Soxhelt extraction

²nitrogen corrected apparent metabolisable energy, MJ/kg