Table 3. Toxicity evaluation of different concentrations of PA on zebrafish embryos

Treatment at 24 hpf
	PA (mM) in egg water with PTU
	0	1.5	2	2.5	3
Mortality (50 hpf)	0/20	0/20	0/20	4/20	20/20
Heartbeat (2 dpf)	145 ± 5	150 ± 5	159 ± 14**	–	–

Significantly different (p < 0.01) compare with control (0 mM).
PA, palmitate; hpf, hours post fertilization; PTU, phenylthiourea; dpf, days post fertilization.