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Table 1 Ingredient composition and nutrient content of control (CON), ptimal (OPT) and Optimal + leucine (OPTLEU) diets (g/kg, as-fed basis)

From: Reduced protein diet with near ideal amino acid profile improves energy efficiency and mitigate heat production associated with lactation in sows

 CONOPTOPTLEU
Ingredient composition
 Corn, yellow dent591.7614.5612.1
 Soybean meal1300.0140.0140.0
 Soy hulls105.7105.7
 Sugar food product250.050.050.0
 Beef tallow33.550.248.1
L-Lysine·HCl, 78.8%4.74.7
L-Valine2.92.9
L-Threonine2.02.0
L-Phenylalanine1.31.3
DL-Methionine1.11.1
L-Isoleucine0.80.8
L-Histidine0.70.7
L-Tryptophan0.50.5
L-Leucine4.5
 Limestone11.89.39.3
 Dicalcium phosphate4.57.87.8
 Sodium chloride5.05.05.0
 Vitamin and mineral Premix32.52.52.5
 Titanium dioxide1.01.01.0
Calculated nutrient4
 Net energy, MJ/kg10.810.810.8
 Crude protein192.4140.0143.4
 Fermentable fiber115.8115.8115.7
   SID5 amino acids
   Arginine11.77.17.1
   Histidine4.73.73.7
   Isoleucine7.15.25.2
   Leucine14.710.314.7
   Lysine9.09.09.0
   Methionine62.73.03.0
   Methionine + cysteine5.44.94.9
   Phenylalanine8.46.76.7
   Phenylalanine + tyrosine13.810.310.3
   Threonine6.15.85.8
   Tryptophan2.11.71.7
   Valine7.77.97.9
 Nitrogen26.318.819.3
 Total calcium76.56.56.5
 STTD8 phosphorus72.32.32.3
  1. 1480 g/kg crude protein
  2. 2Supplied per kg: net energy 11.9 MJ; fermentable fiber 0.5 g/kg; crude protein 10 g/kg (International Ingredient Corporation, St. Louis, MO, USA)
  3. 3Sow micro 5 and Se-yeast PIDX15 (Provimi North America, Inc. Brookville, OH, USA)
  4. 4Based on nutrient concentrations in feed ingredients according to NRC [13]
  5. 5SID: standardized ileal digestible
  6. 6Methionine concentration in Optimal and Optimal + Leucine is higher than Control because methionine was added to meet requirement of (methionine + cysteine)
  7. 7Additional calcium (1.0 g/kg) and phosphorus (1.5 g/kg) releases were accounted due to phytase from the premix
  8. 8STTD: standard total tract digestible