Treatment

Hatch (%)

Control (no chemicals)

43.33 (8.30) z

750 mg/L KCl for 1 hour followed by 20 mg/L formalin for 2 hours

35.00 (8.88) z

750 mg/L KCl for 1 hour followed by 20 mg/L formalin for 3 hours

43.89 (8.81) z

100 mg/L formalin for 2 hours

0.00 (0.00) y