Table 5.
AAFCO (2019)3 | NRC (2006)3 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Item | BSFLA | BSFLB | BSFLC | BSFLD | SEM | BSFLA | BSFLB | BSFLC | BSFLD | SEM |
Indispensable AA | ||||||||||
Arginine | 105.93b | 112.17ab | 111.18ab | 112.93a | 0.974 | 114.02b | 120.74ab | 119.67ab | 121.56a | 1.049 |
Histidine | 248.41b | 261.09a | 261.89a | 260.96a | 1.831 | 207.01b | 217.58a | 218.24a | 217.47a | 1.526 |
Isoleucine | 203.37b | 225.83a | 225.85a | 215.53a | 2.705 | 175.75b | 195.17a | 195.18a | 186.26a | 2.337 |
Leucine | 136.05b | 148.91a | 146.57a | 143.61ab | 1.542 | 113.38b | 124.09a | 122.14a | 119.67ab | 1.285 |
Lysine | 153.87b | 165.17a | 158.41ab | 162.42ab | 1.460 | 181.03b | 194.32a | 186.36ab | 191.09ab | 1.718 |
Methionine | 75.06b | 80.23a | 79.22a | 80.50a | 0.700 | 88.14b | 94.21b | 93.03a | 94.52a | 0.822 |
Met + Cys | 42.33 | 43.60 | 43.70 | 45.18 | 0.638 | 44.10 | 45.41 | 45.52 | 47.06 | 0.664 |
Phenylalanine | 219.63b | 239.06a | 233.62a | 231.42ab | 2.261 | 190.35b | 207.19a | 202.47a | 200.56ab | 1.960 |
Phe + Tyr | 109.25b | 113.81ab | 110.96ab | 114.77a | 0.782 | 91.52b | 95.34ab | 92.95ab | 96.15a | 0.655 |
Threonine | 137.30b | 149.25a | 146.23ab | 145.75ab | 1.637 | 128.50b | 139.68a | 136.86ab | 136.41ab | 1.532 |
Tryptophan | 159.46b | 169.30a | 163.54ab | 161.94b | 1.158 | 207.63b | 220.44a | 212.95ab | 210.86b | 1.507 |
Valine | 237.67b | 282.75a | 278.27a | 269.72ab | 5.913 | 198.06b | 235.63a | 231.89a | 224.76ab | 4.928 |
1DIAAS-like reference values were calculated from the true digestibility of AA in cecectomized roosters.
2DIAAS-like reference values were calculated using the AAFCO (2019) nutrient profiles of AA for growth and reproduction of cats and NRC (2006) recommended allowances of AA for growing kittens.
3BSFLA: 0.2% calcium in basal diet + 1.2% CaCl2; BSFLB: 0.2% calcium in basal + 1.2% CaCO3; BSFLC: 0.2% calcium in basal diet + 0.75% CaCO3; BSFLD: 0.2% calcium in basal diet + 0.6% CaCO3 + 0.6% CaCl2.
a,bWithin a row, means lacking a common superscript letter differ (P < 0.05); n, 4 roosters per treatment.