ed embryos. Data are expressed as mean ± SEM from three biological samples. \**P*\<0.00, \*\**P*\<0.00.\ **Abbreviations:** Ctrl, control; hpf, hours postfertilization; PEG-*b*-PCL, poly(ethylene glycol)-*b*-poly(*ε*-caprolactone); qPCR, quantitative polymerase chain reaction; TUNEL, terminal deoxynucleotidyl transferase dUTP nick end labeling; SEM, standard error of mean