Table 5.
The concentration of hypothalamic neurotransmitters of feather-pecking ducks.
| Indexes | T1(CON) | T2(2%V) | T3(4%V) |
|---|---|---|---|
| GABA (μg/g) | 129.60 ± 65.30 | 131.44 ± 41.71 | 106.42 ± 46.48 |
| Gln (μg/g) | 143.23 ± 9.62 | 121.35 ± 17.54B | 171.24 ± 40.74A |
| Glu (μg/g) | 326.07 ± 90.64 | 275.17 ± 91.35 | 411.55 ± 133.94 |
| His (μg/g) | 19.75 ± 7.45 | 14.54 ± 5.28 | 12.49 ± 3.99 |
| Tyr (μg/g) | 23.67 ± 2.68 | 20.37 ± 3.67 | 22.43 ± 8.30 |
| Trp (μg/g) | 5.73 ± 0.82 | 4.33 ± 0.82 | 4.88 ± 1.56 |
| ACH (μg/g) | 0.16 ± 0.007 | 0.20 ± 0.012 | 0.21 ± 0.012 |
| NE (μg/g) | 0.29 ± 0.014a | 0.22 ± 0.051b | 0.25 ± 0.022 |
a,b Mean ± SE values with different lowercase letters as superscripts represent significant differences (P < 0.05), whereas distinct uppercase letters indicate highly significant differences (p < 0.01).