Table 2 Ingredients and analyzed AA compositions of the experimental diets used in Exp. 1 and 2 (%, as-fed basis)
Item | Exp. 1 | Exp. 2 | ||
|---|---|---|---|---|
Basal diet | FVS diet | FVS diet | N-free diet | |
Ingredients | ||||
 Corn | 97.40 | 73.05 | – | – |
 Corn starch | – | – | 40.80 | 76.80 |
 Sucrose | – | – | 12.00 | 12.00 |
 Cellulose acetae | – | – | – | 4.00 |
 FVSa | – | 24.35 | 40.00 | – |
 Soybean oil | – | – | 3.00 | 3.00 |
 Dicalcium phosphate | 0.90 | 0.90 | 2.00 | 2.00 |
 Limestone | 0.90 | 0.90 | 0.80 | 0.80 |
 Sodium chloride | 0.30 | 0.30 | 0.50 | 0.50 |
 Choline chloride | – | – | 0.10 | 0.10 |
 Chromic oxide | – | – | 0.30 | 0.30 |
 Vitamin and mineral premixb | 0.50 | 0.50 | 0.50 | 0.50 |
Analyzed nutrient levels | ||||
 Dry matter | 86.29 | 86.81 | 89.66 | 89.23 |
 Crude protein | 7.52 | 7.95 | 6.01 | 0.76 |
 Organic matter | 97.07 | 94.98 | 93.17 | 94.67 |
Essential amino acids, g/kg | ||||
 Lysine | – | – | 2.20 | 0.08 |
 Methionine | – | – | 0.50 | – |
 Threonine | – | – | 2.00 | 0.19 |
 Tryptophan | – | – | 0.60 | – |
 Valine | – | – | 1.70 | 0.27 |
 Leucine | – | – | 5.20 | 0.50 |
 Isoleucine | – | – | 1.40 | 0.06 |
 Phenylalanine | – | – | 7.70 | 0.22 |
 Histidine | – | – | 0.80 | 0.17 |
 Arginine | – | – | 1.90 | 0.07 |
Nonessential amino acids, g/kg | ||||
 Tyrosine | – | – | 7.20 | 0.07 |
 Serine | – | – | 1.90 | 0.20 |
 Glutamic acid | – | – | 7.10 | 0.69 |
 Proline | – | – | 1.90 | 0.29 |
 Glycine | – | – | 1.70 | 0.23 |
 Alanine | – | – | 2.40 | 0.28 |
 Cysteine | – | – | 0.50 | – |
 Aspartic acid | – | – | 3.70 | 0.26 |