Table 4.

Added vitamin and trace mineral concentrations in phase 3 nursery diets (11 to 23 kg)

	Count, N1	Weighted average2	Average	Ratio to NRC	Standard deviation	Low	25%	Median	75%	High
Vitamins
A, IU/kg	36	6,903	5,951	3.40	2,645	1,951	3,722	5,457	7,788	12,472
D, IU/kg	36	1,608	1,681	8.41	644.3	882.0	1,102	1,653	1,984	4,160
E, IU/kg	36	57.6	44.1	4.01	25.9	11.0	30.0	44.1	48.1	125.0
K, mg/kg	36	3.07	3.14	6.29	1.42	0.53	2.56	3.25	3.53	8.69
Thiamin, mg/kg	11	2.87	2.75	2.75	1.63	0.45	2.07	2.21	3.21	5.79
Riboflavin, mg/kg	36	6.78	6.62	2.21	1.89	3.30	4.9	6.81	8.27	10.8
Niacin, mg/kg	36	36.4	40.2	1.34	10.7	16.5	30.0	42.9	49.6	66.1
Pantothenic acid, mg/kg	36	24.8	23.6	2.62	7.03	10.6	17.9	24.4	27.5	37.4
Pyridoxine, mg/kg	12	4.82	3.42	1.14	2.24	0.88	1.28	3.06	5.00	7.00
B12, μg/kg	36	29.6	29.6	1.97	9.10	15.6	22.3	30.4	33.1	50.2
Biotin, mg/kg	13	0.40	0.22	4.33	0.15	0.09	0.11	0.20	0.22	0.65
Folic acid, mg/kg	14	2.53	1.22	4.07	1.23	0.04	0.34	0.75	1.60	4.49
Choline, mg/kg	5	240.5	286.7	0.72	170.4	48.0	220.5	225.0	390.0	550.0
Trace minerals
Copper, mg/kg	36	95.9	107.5	21.5	86.9	6.10	16.2	125.0	165.2	268.5
Manganese, mg/kg	36	30.7	31.4	10.5	7.03	11.6	29.7	30.0	33.1	55.0
Selenium, mg/kg	36	0.30	0.30	1.19	0.01	0.27	0.30	0.30	0.30	0.30
Zinc, mg/kg	36	290.3	316.6	3.96	445.5	75.0	100.0	110.2	158.2	1,910
Iodine, mg/kg	36	0.44	0.44	3.12	0.23	0.21	0.30	0.33	0.51	1.17
Iron, mg/kg	36	84.5	103.2	1.03	34.9	45.0	79.0	100.0	110.2	238.7
Chromium,3 mg/kg	4	0.20	0.17	–	0.05	0.08	0.17	0.20	0.20	0.20
Cobalt,3 mg/kg	1	0.39	0.39	–	–	–	–	–	–	–

¹Respondents who added the nutrient to the diet from the 4,245,700 sows surveyed. Reported values are on a complete-feed basis.

²Sum of the products of the inclusion level multiplied by the size of the production (# of sows), divided by the total number of sows from the participants that provided added levels for that nutrient

³ NRC (2012) does not provide a recommendation level of the nutrient.