Nutrient Requirements of Poultry: Ninth Revised Edition, 1994

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TABLE 2-1 Nutrient Requirements of Immature Leghorn-Type Chickens as Percentages or Units per Kilogram of Diet

		White-Egg-Laying Strains				Brown-Egg-Laying Strains
Nutrient	Unit	0 to 6 Weeks; 450 g^a 2,850^b	6 to 12 Weeks; 980 g^a 2,850^b	12 to 18 Weeks; 1,375 g^a 2,900^b	18 Weeks to First Egg; 1,475 g^a 2,900^b	0 to 6 Weeks; 500 g^a 2,800^b	6 to 12 Weeks; 1,100 g^a 2,800^b	12 to 18 Weeks; 1,500 g^a 2,850^b	18 Weeks to First Egg; 1,600 g^a 2,850^b
Protein and amino acids
Crude protein^c	%	18.00	16.00	15.00	17.00	*17.00*	15.00	14.00	*16.00*
Arginine	%	1.00	0.83	0.67	0.75	*0.94*	*0.78*	*0.62*	*0.72*
Glycine + serine	%	0.70	0.58	*0.47*	*0.53*	*0.66*	*0.54*	*0.44*	*0.50*
Histidine	%	0.26	0.22	0.17	0.20	*0.25*	*0.21*	*0.16*	*0.18*
Isoleucine	%	0.60	0.50	0.40	0.45	*0.57*	*0.47*	*0.37*	*0.42*
Leucine	%	1.10	0.85	0.70	0.80	*1.00*	*0.80*	*0.65*	*0.75*
Lysine	%	0.85	0.60	0.45	0.52	*0.80*	*0.56*	*0.42*	*0.49*
Methionine	%	0.30	0.25	0.20	0.22	*0.28*	*0.23*	*0.19*	*0.21*
Methionine + cystine	%	0.62	0.52	0.42	0.47	*0.59*	*0.49*	*0.39*	*0.44*
Phenylalanine	%	0.54	0.45	0.36	0.40	*0.51*	*0.42*	*0.34*	*0.38*
Phenylalanine + tyrosine	%	1.00	0.83	0.67	0.75	*0.94*	*0.78*	*0.63*	*0.70*
Threonine	%	0.68	0.57	0.37	0.47	*0.64*	*0.53*	*0.35*	*0.44*
Tryptophan	%	0.17	0.14	0.11	0.12	*0.16*	*0.13*	*0.10*	*0.11*
Valine	%	0.62	0.52	0.41	0.46	*0.59*	*0.49*	*0.38*	*0.43*
Fat
Linoleic acid	%	1.00	*1.00*	*1.00*	*1.00*	*1.00*	*1.00*	*1.00*	*1.00*
Macrominerals
Calcium^d	%	0.90	0.80	0.80	2.00	*0.90*	*0.80*	*0.80*	*1.80*
Nonphytate phosphorus	%	0.40	0.35	0.30	0.32	0.40	0.35	0.30	0.35
Potassium	%	*0.25*	*0.25*	*0.25*	*0.25*	*0.25*	*0.25*	*0.25*	*0.25*
Sodium	%	0.15	0.15	0.15	0.15	*0.15*	*0.15*	*0.15*	*0.15*
Chlorine	%	0.15	*0.12*	*0.12*	*0.15*	*0.12*	*0.11*	*0.11*	*0.11*
Magnesium	mg	600.0	*500.0*	*400.0*	*400.0*	*570.0*	*470.0*	*370.0*	*370.0*
Trace minerals
Manganese	mg	60.0	*30.0*	*30.0*	*30.0*	*56.0*	*28.0*	*28.0*	*28.0*
Zinc	mg	40.0	*35.0*	*35.0*	*35.0*	*38.0*	*33.0*	*33.0*	*33.0*
Iron	mg	80.0	*60.0*	*60.0*	*60.0*	*75.0*	*56.0*	*56.0*	*56.0*
Copper	mg	*5.0*	*4.0*	*4.0*	*4.0*	*5.0*	*4.0*	*4.0*	*4.0*
Iodine	mg	0.35	*0.35*	*0.35*	*0.35*	*0.33*	*0.33*	*0.33*	*0.33*
Selenium	mg	0.15	*0.10*	*0.10*	*0.10*	*0.14*	*0.10*	*0.10*	*0.10*
Fat soluble vitamins
A	IU	1,500.0	1,500.0	1,500.0	1,500.0	*1,420.0*	*1,420.0*	*1,420.0*	*1,420.0*
D₃	ICU	200.0	200.0	200.0	300.0	*190.0*	*190.0*	*190.0*	*280.0*
E	IU	*10.0*	*5.0*	*5.0*	*5.0*	*9.5*	*4.7*	*4.7*	*4.7*
K	mg	0.5	*0.5*	*0.5*	*0.5*	*0.47*	*0.47*	*0.47*	*0.47*
Water soluble vitamins
Riboflavin	mg	3.6	1.8	1.8	2.2	*3.4*	*1.7*	*1.7*	*1.7*
Pantothenic acid	mg	*10.0*	*10.0*	*10.0*	*10.0*	*9.4*	*9.4*	*9.4*	*9.4*
Niacin	mg	27.0	11.0	11.0	11.0	*26.0*	*10.3*	*10.3*	*10.3*
B₁₂	mg	0.009	0.003	0.003	0.004	*0.009*	*0.003*	*0.003*	*0.003*
Choline	mg	1,300.0	900.0	500.0	500.0	*1,225.0*	*850.0*	*470.0*	*470.0*
Biotin	mg	*0.15*	*0.10*	*0.10*	*0.10*	*0.14*	*0.09*	*0.09*	*0.09*
Folic acid	mg	*0.55*	*0.25*	*0.25*	*0.25*	*0.52*	*0.23*	*0.23*	*0.23*
Thiamin	mg	*1.0*	*1.0*	*0.8*	*0.8*	*1.0*	*1.0*	*0.8*	*0.8*
Pyridoxine	mg	3.0	*3.0*	*3.0*	*3.0*	*2.8*	*2.8*	*2.8*	*2.8*
NOTE: Where experimental data are lacking, values typeset in bold italics represent an estimate based on values obtained for other ages or related species. ^a Final body weight. ^b These are typical dietary energy concentrations for diets based mainly on corn and soybean meal, expressed in kcal ME_n/kg diet. ^c Chickens do not have a requirement for crude protein per se. There, however, should be sufficient crude protein to ensure an adequate nitrogen supply for synthesis of nonessential amino acids. Suggested requirements for crude protein are typical of those derived with corn-soybean meal diets, and levels can be reduced somewhat when synthetic amino acids are used. ^d The calcium requirement may be increased when diets contain high levels of phytate phosphorus (Nelson, 1984).

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Nutrient Requirements of Poultry: Ninth Revised Edition, 1994 (1994)
Board on Agriculture (BOA)

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Nutrient Requirements of Poultry: Ninth Revised Edition, 1994 (1994) Board on Agriculture (BOA)

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Nutrient Requirements of Poultry: Ninth Revised Edition, 1994 (1994)
Board on Agriculture (BOA)