Table 1

Composition of the experimental diets (g/40 MJ)

Ingredient	Control diet	RS diet	NSP diet	RS+NSP diet
Butter^1-a	160	160	160	160
Beef tallow^1-b	120	120	120	120
Vegetable oil^1-c	110	110	110	110
Whey protein concentrate^1-d	320	310	300	290
Blood meal^1-b	170	170	170	170
Sugar^1-e	470	470	470	470
Corn flour^1-f ^1-g	450	570	450	570
Low amylose corn kernels^f,h	220	0	220	0
High amylose corn kernels^f,i	60	280	60	280
Wheat bran^f,h	0	0	140	140
Corn bran^f,h	60	40	60	40
Salt	5	5	5	5
Vitamin and mineral mixture^j	5	5	5	5
Celite^k	50	50	50	50

As analysed
RS	41	122	39	119
NSP	83	84	137	138
Digestible starch	501	496	507	502

↵1-a Western Star (Melbourne, Victoria, Australia);
↵1-b Peerless (Braybrook, Victoria, Australia);
↵1-c Crisco (Mascot, New South Wales, Australia);
↵1-d United Milk Tasmania (Devonport, Tasmania, Australia);
↵1-e CSR (Yarraville, Victoria, Australia);
↵1-f kindly provided by Starch Australasia Ltd (Lane Cove, New South Wales, Australia);
↵1-g wheaten corn flour, gelatinised in 5 litres boiling water;
^hparticle size ⩽1 mm;
ⁱparticle size ⩽3 mm;
^jprovides (mg/40 MJ): retinol 16, cholecalciferol 0.21, α tocopherol 55, menadione 1.5, riboflavin 8.3, nicotinic acid 41.3, pantothenic acid 13.8, pyrodoxine 2.8, biotin 1.4, choline 2750, cyanocobalamin 0.043, Fe 220, Zn 138, Mn 55, Cu 16.5, I 0.55, Se 0.25, Propharma (Dandenong, Victoria, Australia);
^kDiatomaceous earth (Celite Corporation, Lompoc, California, USA).
RS, resistant starch; NSP, non-starch polysaccharide.