Dietary folic acid requirement of juvenile abalone Haliotis discus hannai Ino

A 16-week growth study was conducted to determine the dietary folic acid requirement of juvenile abalone (initial mean weight 482.2 ± 2.2 mg). Six semi-purified diets were formulated to contain graded levels of folic acid (0.06, 1.44, 2.86, 5.88, 14.27 and 35.71 mg/kg). Each diet was fed to three replicate tanks of abalone in a re-circulated water system. The results showed that the weight gain rate (WGR) was significantly increased when dietary...