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Average temperature (°C) (a) at the incision site (±SE) and (b) temperature difference (±SE) between the incision site and the surrounding tissues of the scrotum of piglets in each treatment group over time. Asterisk represents a significant difference (P < 0.05) between the castrated piglets (n = 20) and sham piglets (n = 10); letter represents a significant difference between laser-castrated piglets (n = 10) and sham piglets.
