Nutrient Requirement tables for Pigs based on NRC standards

Dietary Amino Acid requirements of growing pigs fed Ad-lib (90% dry matter)

	Body Weight (Kg)
	3-5	5-10	10-20	20-50	50-80	80-120
Average weight in range	4	7.5	15	35	65	100
DE content of diet (mj/kg)	14.24	14.24	14.24	14.24	14.24	14.24
ME content of diet (mj/kg)	13.67	13.67	13.67	13.67	13.67	13.67
Estimated feed intake /day (g/day)	250	500	1000	1855	2575	3075
Crude Protein (g/kg)	260	237	209	180	155	132
Amino Acids Total basis (g/kg)
Arginine	5.9	5.4	4.6	3.7	2.7	1.9
Histidine	4.8	4.3	3.6	3.0	2.4	1.9
Isoleucine	8.3	7.3	6.3	5.1	4.2	3.3
Leucine	15.0	13.2	11.2	9.0	7.1	5.4
Lysine	15.0	13.56	11.5	9.5	7.5	6.0
Methionine	4.0	3.5	3.0	2.5	2.0	1.6
Methionine + Cystine	8.6	7.6	6.5	5.4	4.4	3.5
Phenylalanine	9.0	8.0	6.8	5.5	4.4	3.5
Phenylalanine + Tyrosine	14.1	12.5	10.6	8.7	7.0	5.5
Threonine	9.8	8.6	7.4	6.1	5.1	4.1
Tryptophan	2.7	2.4	2.1	1.7	1.4	1.1
Valine	10.4	9.2	7.9	6.4	5.2	4.0

Tables are based on a ratio of 1 :1 (barrows : gilts) with high-medium lean growth rate (325 g/day of carcass fat-free lean) from 20-120 kg body weight.

Assumption ME=96% DE in maize-soyabean diets of these protein levels.

In diets for the 3-10kg liveweight level the diets containing blood plasma/dried milk products will contain protein levels 20-30g/kg less than shown.

Total amino acid requirements are based on the following types of diets: 3-5kg maize -soyabean meal with 5% dried plasma and 20-25% dried milk products. 5-10kg pigs maize-soyabean diet with 5-25% dried milk products. 10-120kg pigs maize-soyabean meal diet.

The total Lysine amounts for 3-20kg pigs are estimated from empirical data. The other amino acids for 3-20kg pigs are based on the ratios of amino acids to lysine (true digestible basis); however there is little empirical data to support these ratios. The requirements for 20-120 kg pigs are estimated from the NRC growth model.

Dietary Mineral, Vitamin and Fatty acid requirements of growing pigs fed Ad-lib (90% dry matter)

	Body Weight (Kg)
	3-5	5-10	10-20	20-50	50-80	80-120
Average weight in range	4	7.5	15	35	65	100
DE content of diet (mj/kg)	14.24	14.24	14.24	14.24	14.24	14.24
ME content of diet (mj/kg)	13.67	13.67	13.67	13.67	13.67	13.67
Estimated feed intake /day (g/day)	250	500	1000	1855	2575	3075
Mineral requirements
Calcium g/kg	9.0	8.0	7.0	6.0	5.0	4.5
Phosphorus (available) g/kg	5.5	4.0	3.2	2.3	1.9	1.5
Sodium g/kg	2.5	2.0	1.5	1.0	1.0	1.0
Chlorine g/kg	2.5	2.0	1.5	0.8	0.8	0.8
Magnesium g/kg	0.4	0.4	0.4	0.4	0.4	0.4
Potassium g/kg	3.0	2.8	2.6	2.3	1.9	1.7
Copper mg/kg	6.0	6.0	5.0	4.0	3.5	3.0
Iodine mg/kg	0.14	0.14	0.14	0.14	0.14	0.14
Iron mg/kg	100	100	80	60	50	40
Manganese mg/kg	4.0	4.0	3.0	2.0	2.0	2.0
Selenium mg/kg	0.3	0.3	0.25	015	0.15	0.15
Zinc mg/kg	100	100	80	60	50	50
Vitamin Requirements
Vit A IU/kg	2200	2200	1750	1300	1300	1300
Vit D3 IU/kg	220	220	200	150	150	150
Vit E IU/kg	16	16	11	11	11	11
Vit K mg/kg	0.5	0.5	0.5	0.5	0.5	0.5
Biotin mg/kg	0.08	0.05	0.05	0.05	0.05	0.05
Choline mg/kg	600	500	400	300	300	300
Folacin mg/kg	0.3	0.3	0.3	0.3	0.3	0.3
Niacin (available) mg/kg	20.0	15.0	12.5	10.0	7.0	7.0
Pantothenic acid mg/kg	12	10	9	8	7	7
Riboflavin mg/kg	4.0	3.5	3.0	2.5	2.0	2.0
Thiamin mg/kg	1.5	1.0	1.0	1.0	1.0	1.0
Vit B6 mg/kg	2.0	1.5	1.5	1.0	1.0	1.0
Vit B12 mg/kg	2.0	1.75	1.5	1.0	0.5	0.5
Linoleic acid g/kg	1.0	1.0	1.0	1.0	1.0	1.0

Tables are based on a ratio of 1 :1 (barrows : gilts). The requirements of certain minerals and vitamins may be slightly higher for pigs having high lean growth rates (>324 g/day of carcass fat free lean), but no distinction is made.

The percentages of calcium, phosphorus and available phosphorus should be increased by 0.05 to 1.0% points for developing boars and replacement gilts from 50-120 kg body weight.

The niacin in maize, grain sorghum, wheat and barley is unavailable. Similarly, the niacin in by-products from these cereal grains is poorly available unless they too have undergone a fermentation or wet milling process.