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Table 1 Ingredient composition and nutrient content of experimental diets (g/kg, as-fed basis)

From: Effect of dietary near ideal amino acid profile on heat production of lactating sows exposed to thermal neutral and heat stress conditions

  High crude protein Low crude protein
Ingredient composition
 Corn, yellow dent 591.7 614.5
 Soybean meala 300.0 140.0
 Soy hulls 105.7
 Sugar food productb 50.0 50.0
 Beef tallow 33.5 50.2
L-Lysine·HCl 4.7
L-Valine 2.9
 L-Threonine 2.0
L-Phenylalanine 1.3
DL-Methionine 1.1
L-Isoleucine 0.8
L-Histidine 0.7
L-Tryptophan 0.5
L-Leucine
 Limestone 11.8 9.3
 Dicalcium phosphate 4.5 7.8
 Sodium chloride 5.0 5.0
 Vitamin and mineral premixc 2.5 2.5
 Titanium dioxide 1.0 1.0
Calculated nutrientd
 Net energy, MJ/kg 10.8 10.8
 Crude protein 192.4 140
 Fermentable fiber 115.8 115.8
SIDe amino acids
 Arginine 11.7 7.1
 Histidine 4.7 3.7
 Isoleucine 7.1 5.2
 Leucine 14.7 10.3
 Lysine 9.0 9.0
 Methioninef 2.7 3.0
 Methionine + cysteine 5.4 4.9
 Phenylalanine 8.4 6.7
 Phenylalanine + tyrosine 13.8 10.3
 Threonine 6.1 5.8
 Tryptophan 2.1 1.7
 Valine 7.7 7.9
Nitrogen 26.3 18.8
Total calciumg 6.5 6.5
STTDh phosphorusg 2.3 2.3
  1. a480 g/kg crude protein
  2. bSupplied 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. cSow micro 5 and Se-yeast PIDX15 (Provimi North America, Inc. Brookville, Ohio, USA)
  4. dBased on nutrient concentrations in feed ingredients [16]
  5. eSID standardized ileal digestibility coefficient [16]
  6. fMethionine concentration in Optimal and Optimal + Leucine is higher than Control because methionine was added to meet requirement of (methionine + cysteine)
  7. gConcentration of calcium and phosphorus were based on phytase activity from the premix
  8. hSTTD standard total tract digestibility coefficient