Table 7.

Added vitamin and trace mineral concentrations in late-finishing diets (100 kg to market)

	Count, N1	Weighted average2	Average	Ratio to NRC	Standard deviation	Low	25%	Median	75%	High
Vitamins
A, IU/kg	37	3,378	2,874	2.21	1,314	1,125	1,874	2,480	3,528	6,615
D, IU/kg	37	932.1	893.6	5.96	442.9	344.5	661.5	805.6	997.9	2,778
E, IU/kg	37	29.9	21.8	1.98	11.22	5.51	14.5	19.5	25.8	59.8
K, mg/kg	37	1.60	1.65	3.30	1.37	0.38	0.99	1.32	1.98	8.69
Riboflavin, mg/kg	37	4.06	3.58	1.79	1.10	1.65	2.65	3.31	4.20	6.17
Niacin, mg/kg	37	24.6	22.8	0.76	6.99	8.27	19.8	22.5	27.0	44.1
Pantothenic acid, mg/kg	37	14.7	12.1	1.73	3.75	5.37	9.10	11.0	14.2	24.9
B12, μg/kg	37	18.6	15.8	3.17	5.09	8.27	12.5	13.7	19.8	29.9
Biotin, mg/kg	1	0.10	0.10	2.00	–	–	–	–	–	–
Thiamin, mg/kg	3	1.15	2.17	2.17	0.94	1.00	1.60	2.21	2.76	3.31
Folic acid, mg/kg	2	0.46	0.26	0.86	0.24	0.02	0.14	0.26	0.38	0.50
Pyridoxine, mg/kg	2	1.97	1.75	1.75	0.25	1.50	1.62	1.75	1.87	2.00
Trace minerals
Copper, mg/kg	37	45.3	36.7	12.2	54.5	3.05	8.25	9.01	15.0	172.0
Manganese, mg/kg	37	20.8	20.5	10.2	7.22	6.00	16.5	18.7	25.0	40.0
Selenium, mg/kg	37	0.24	0.21	1.43	0.06	0.05	0.15	0.23	0.27	0.30
Zinc, mg/kg	37	85.3	73.9	1.48	21.1	19.9	57.9	75.0	88.9	120.2
Iodine, mg/kg	37	0.39	0.28	2.02	0.20	0.05	0.17	0.20	0.34	1.00
Iron, mg/kg	37	61.3	64.5	1.61	17.5	19.9	55.0	63.0	77.1	100.0
Cobalt,3 mg/kg	1	0.31	0.31	–	–	–	–	–	–	–

¹Respondents who added the nutrient to the diet from the 4,382,700 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.