Table 2.
Effects of guanidinoacetic acid (GAA) on absolute weight, relative weight, and crude protein of tissue in finishing pigs
| Items | GAA, mg/kg | SEM | P-value | |||||
|---|---|---|---|---|---|---|---|---|
| 0 | 500 | 1000 | 1500 | ANOVA | Linear | Quadratic | ||
| Weight, g | ||||||||
| Liver | 1563.9 | 1662.7 | 1746.3 | 1637.4 | 99.1 | 0.678 | 0.525 | 0.335 |
| Kidney | 331.1 | 390.4 | 416.4 | 348.5 | 24.4 | 0.123 | 0.608 | 0.024 |
| Pancreas | 146.2 | 137.9 | 148.3 | 158.8 | 9.4 | 0.494 | 0.266 | 0.334 |
| Heart | 471.0 | 472.7 | 462.1 | 477.3 | 24.4 | 0.961 | 0.928 | 0.745 |
| Spleen | 218.5 | 194.2 | 208.9 | 201.0 | 14.3 | 0.690 | 0.577 | 0.588 |
| Relative weight, g/kg body weight | ||||||||
| Liver | 12.15 | 12.73 | 14.15 | 12.56 | 0.74 | 0.335 | 0.464 | 0.186 |
| Kidney | 2.55b | 2.99ab | 3.39a | 2.67ab | 0.19 | 0.044 | 0.509 | 0.011 |
| Pancreas | 1.13 | 1.06 | 1.22 | 1.22 | 0.08 | 0.440 | 0.253 | 0.660 |
| Heart | 5.09 | 5.05 | 4.91 | 5.00 | 0.20 | 0.934 | 0.668 | 0.759 |
| Spleen | 1.70 | 1.49 | 1.71 | 1.54 | 0.13 | 0.550 | 0.664 | 0.878 |
| Crude protein, % dry tissue | ||||||||
| Liver | 68.63 | 69.05 | 72.25 | 69.52 | 2.19 | 0.665 | 0.563 | 0.490 |
| Kidney | 73.12 | 73.44 | 75.09 | 71.79 | 1.01 | 0.296 | 0.758 | 0.141 |
| Pancreas | 62.85 | 61.37 | 68.64 | 63.03 | 3.65 | 0.554 | 0.649 | 0.590 |
| Heart | 71.00 | 71.51 | 70.99 | 70.32 | 1.09 | 0.901 | 0.614 | 0.602 |
| Spleen | 70.21 | 70.42 | 70.03 | 69.25 | 1.15 | 0.901 | 0.538 | 0.675 |
SEM standard error of the mean
Dietary treatments were: basal diet + 0, 500, 1000, and 1500 mg/kg GAA, respectively. n = 6
a, bMean within rows with different letters differ significantly (P < 0.05)
Bold indicates P < 0.05