Table 5.
Amino acid composition in the LTL muscle of O and AHO lambs.
| Type | Amino acid (%)/Taste description | O | AHO | p-Value |
|---|---|---|---|---|
| EEA | Threonine (Thr)/sweet | 0.88 ± 0.03 | 0.87 ± 0.01 | 0.803 |
| Valine (Val)/bitter | 0.99 ± 0.06 | 0.92 ± 0.05 | 0.415 | |
| Isoleucine (Iie)/bitter | 0.90 ± 0.03 | 0.91 ± 0.01 | 0.729 | |
| Leucine (Leu)/bitter | 1.57 ± 0.03 | 1.58 ± 0.02 | 0.834 | |
| Phenylalanine (Phe)/bitter | 0.73 ± 0.03 | 0.72 ± 0.02 | 0.843 | |
| Lysine (Lys)/bitter (fresh) | 1.84 ± 0.06 | 1.83 ± 0.02 | 0.960 | |
| NEAA | Aspartic acid (Asp)/fresh | 1.74 ± 0.06 | 1.72 ± 0.03 | 0.811 |
| Serine (Ser)/sweet | 0.76 ± 0.02 | 0.75 ± 0.01 | 0.833 | |
| Glutamic acid (Glu)/fresh | 3.04 ± 0.04b | 3.18 ± 0.03a | 0.036 | |
| Proline (Pro)/sweet | 0.52 ± 0.02 | 0.54 ± 0.01 | 0.439 | |
| Glycine (Gly)/sweet | 0.82 ± 0.01 | 0.80 ± 0.02 | 0.555 | |
| Alanine (Ala)/sweet | 1.11 ± 0.04 | 1.09 ± 0.02 | 0.739 | |
| Methionine (Met)/bitter | 0.35 ± 0.01b | 0.45 ± 0.02a | 0.003 | |
| Tyrosine (Tyr)/bitter | 0.66 ± 0.03 | 0.65 ± 0.03 | 0.693 | |
| Histidine (His)/bitter (sweet) | 0.85 ± 0.06 | 0.81 ± 0.03 | 0.511 | |
| Arginine (Arg)/bitter | 1.23 ± 0.03 | 1.22 ± 0.02 | 0.882 |
AHO: Australian White × Small-tailed Han × Oura-type Tibetan three-way crossbred sheep; O: Oura-type Tibetan sheep. EEA: essential amino acids, NEAA: nonessential amino acids. a,b different letters indicate significant differences between two groups (p < 0.05). Data were presented as means ± SEM.