Effect of garlic supplemented diets on growth and survival of Pacific white leg shrimp, Litopenaeus vannamei juveniles

A study was carried out to evaluate the effect of adding three levels of garlic powder at 0.1, 0.5 and 1.0% in a basal diet (commercial pellet feed) of Pacific white leg shrimp, Litopenaeus vannamei juveniles (5.51±0.34 g) on growth performance, survival rate. The experiment was carried out for 49 days and L. vannamei were fed on four experimental diets with 0% (G0), 0.1% (G1), 0.5% (G2) and 1.0% (G3) of garlic powder in basal diet. The dietary garlic inclusion at three different levels had significantly (p< 0.05) higher. Average weight gain (AWG), SGR, better FCR and survival rate compared to control diet. However, survival rate was not significant between G1 and G0. Among the garlic inclusion diets a significantly (p< 0.05) higher AWG (10.39 ± 0.02) and survival rate (92.50 ± 0.50), better FCR (1.13 ± 0.03) and SGR (2.74 ± 0.03) observed in G2 followed by G3 and lowest in G1. No significant (p< 0.05) difference in FCR and survival observed between G2 and G3.