Figure 4

Effect of melatonin implantation on egg quality.
(a) Shows the effect of melatonin implanted for 3 months at 470 days of age on egg broken rate and Sharpei rate. (b) Shows the effect of melatonin implanted for 3 months at 360 days of age on egg broken rate and Sharpei rate. Data were expressed as the mean (after 3 months of melatonin treatment) ± SEM. “*” represents significant differences (p < 0.05).