Table 1.

Composition of experimental diets (as-fed basis)

	C	D	D-A	D-CA
Ingredients (g/kg)*
Maize	303	175	173	168
Soyabean meal	217	76⋅5	76⋅5	76⋅7
Barley	260	260	260	260
Wheat	177	177	177	177
Wheat bran	–	80⋅0	80⋅0	80⋅0
Sugar beet pulp	–	60⋅0	60⋅0	60⋅0
Wheat DDGS	–	50⋅0	50⋅0	50⋅0
Casein HCl	7⋅80	54⋅5	54⋅2	54⋅2
Soya oil	–	27⋅0	28⋅0	28⋅0
Calcium chloride (2H2O)	–	–	9⋅40	9⋅40
Monocalcium phosphate	10⋅2	11⋅2	11⋅2	11⋅2
Calcium carbonate	8⋅95	6⋅60	–	4⋅83
Potassium citrate		4⋅80	–	–
Salt	3⋅75	3⋅38	3⋅38	3⋅38
Potassium chloride	–	–	3⋅35	3⋅35
l-Lysine HCl	4⋅60	4⋅38	4⋅38	4⋅38
l-Threonine	1⋅65	2⋅14	2⋅13	2⋅13
dl-Methionine	1⋅56	1⋅88	1⋅88	1⋅88
l-Tryptophan	0⋅45	0⋅62	0⋅62	0⋅62
Chemical characteristics (g/kg)†
DM	891	898	896	894
NE (MJ/kg)	9⋅66	9⋅68	9⋅67	9⋅62
Crude protein	174	174	173	173
Lipids	26⋅0	46⋅1	51⋅1	51⋅6
TDF	(110)	(137)	(176)	(165)
Insoluble fibre	(94⋅6)	(121)	(111)	(140)
Soluble fibre	(16)	(16)	(65)	(25)
Digestible P	3⋅0	3⋅0	3⋅0	3⋅0
Total P	5⋅7	5⋅6	6⋅5	6⋅2
Ca	7⋅7 (6⋅9)	7⋅6 (6⋅5)	7⋅7 (6⋅4)	9⋅5 (8⋅2)
Ca:dP	2⋅6	2⋅5	2⋅6	3⋅2
K	7⋅5 (7⋅2)	7⋅5 (7⋅3)	7⋅5 (7⋅9)	7⋅5 (7⋅8)
Na	1⋅6 (1⋅5)	1⋅6 (1⋅2)	1⋅6 (1⋅2)	1⋅6 (1⋅4)
Cl	4⋅0 (5⋅1)	4⋅0 (4⋅9)	10 (11)	10 (12)
dEB (mEq/kg)	148 (104)	148 (99)	−24 (−60)	−24 (−82)
S	1⋅9 (2⋅0)	1⋅9 (2⋅3)	1⋅9 (2⋅4)	1⋅9 (2⋅3)

C, control low-fibre diet; D, diet enriched in local feedstuffs with a normal dietary electrolyte balance; D-A, diet enriched in local feedstuffs with a low dietary electrolyte balance; D-CA, D-A diet supplemented with Ca; DDGS, distillers' dried grains with solubles; NE, net energy; TDF, total dietary fibre; dEB, dietary electrolyte balance.

^*Premix (0⋅50%) was added in all diets: 10 000 IU (3000 μg) vitamin A (retinol); 2000 IU (50 μg) vitamin D₃ (cholecalciferol); 20 mg vitamin E (tocopherol); 2 mg vitamin K₃ (menadione); 2 mg vitamin B₁ (thiamine); 5 mg vitamin B₂ (riboflavin); 20 mg vitamin B₃ (vitamin PP, niacin); 11 mg vitamin B₅ (calcium pantothenate); 5 mg vitamin B₆ (pyridoxine); 0⋅2 mg vitamin B₈ (biotin, vitamin H); 1 mg vitamin B₉ (folic acid); 0⋅03 mg vitamin B₁₂ (cyanocobalamin); 600 mg choline chloride; 104 mg Fe (FeCO₃); 20 mg Cu (CuSO₄); 40 mg Mn (MnO); 99 mg Zn (ZnO); 1 mg Co (CoCO₃); 0⋅6 mg iodine (Ca(IO₃)₂); 0⋅3 mg Se (Na₂SeO₃); 2⋅95 g Ca (CaCO₃).

^†Analysed values in parentheses.