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Table 4 Standardized ileal digestible lysine recommendations as influenced by weight

From: Practical starter pig amino acid requirements in relation to immunity, gut health and growth performance

   Barrows1 Gilts2
Pig weight, kg g/kg of gain g/Mcal ME %3 g/Mcal ME %3
5 19 4.17 1.40 4.20 1.40
10 19 3.99 1.34 4.01 1.34
15 19 3.82 1.28 3.83 1.28
20 19 3.66 1.22 3.66 1.23
30 20 3.35 1.12 3.36 1.13
40 20 3.08 1.03 3.10 1.04
50 20 2.83 0.95 2.89 0.97
60 20 2.62 0.88 2.70 0.91
70 20 2.43 0.81 2.55 0.85
80 20 2.27 0.76 2.41 0.81
90 20 2.14 0.72 2.29 0.77
100 20 2.04 0.68 2.18 0.73
110 20 1.97 0.66 2.08 0.70
120 20 1.93 0.65 1.98 0.66
  1. 1Barrow lysine concentrations based on the equation: g/SID Lys:Mcal = 0.000146 × (BW, kg)2 - 0.0377 × (BW, kg) + 4.352.
  2. 2Gilt lysine concentrations based on the equation: g/SID Lys:Mcal = -0.00000094 × (BW, kg)3 + 0.000306 × (BW, kg)2 - 0.0435 × (BW, kg) + 4.414).
  3. 3Percentages are for diet containing 3,350 kcal ME/kg using NRC [23] nutrient values.