Table 2. Tibia Physical and Strength Properties.
| Group | Length (mm) | Diameter (mm) | Thickness (mm) | Oven dry weight (g) | Ash weight (g) | Upper yield point (N) | Yield strength (N) | Break force (N) | Elastic force (N) | Max force (N) |
| Control | 106.41 (±3.55)** | 6.4 (±0.11) | 0.66 (±0.06)* | 5.81 (±0.19) | 2.98 (±0.11) | 69.74 (±15.88) | 89.35 (±15.54) | 173.00 (±13.21)** | 5528.03 (±1183.52) | 182.97 (±12.16)*** |
| Low | 114.36 (±0.87)** | 6.57 (±0.12) | 0.47 (±0.06)* | 5.96 (±0.20) | 1.88 (±1.11) | 81.11 (±23.20) | 75.63 (±17.97) | 203.37 (±11.21)** | 5317.41 (±1103.98) | 225.13 (±8.86)*** |
| Medium | 115.48 (±0.51)** | 6.61 (±0.12) | 0.63 (±0.04)* | 5.93 (±0.23) | 2.88 (±0.14) | 57.50 (±14.94) | 91.87 (±18.41) | 188.03 (±8.81)** | 4179.77 (±1090.61) | 207.40 (±8.26)*** |
| High | 115.55 (±0.69)** | 6.37 (±0.10) | 0.70 (±0.06)* | 6.08 (±0.16) | 3.25 (±0.12) | 76.32 (±30.23) | 52.84 (±12.64) | 244.03 (±14.19)** | 3881.62 (±768.65) | 251.09 (±13.51)*** |
Length, diameter, thickness, oven dry weight, ash weight, upper yield point, yield strength, break force, elastic force, and max force of femurs collected from White Leghorn hens after melatonin treatment.
*
= significant at p<0.05.
**
= significant at P<0.01.
***
= significant at p<0.001.
Data given are mean ± SE.