Effect of supplementation Thai fairy shrimp (Branchinella thailandensis) on growth and coloration of gold fish (Carassius auratus)

Abstract

The experiment was carried out to determine the effect of Thai fairy shrimp (Branchinella thailandensis) supplementation on growth and coloration of Gold fish (Carassius auratus). The experimental design was Completely Randomized Design (CRD). There were 4 treatments with 3 replications each: 1) fed on commercial diet (control; CD), 2) CD and 30% of fresh Thai fairy shrimp (FTF), 3) CD and freeze Thai fairy shrimp (FRTF), 4) CD and fresh Thai fairy shrimp 15% and freeze Thai fairy shrimp 15% (FFTF). Goldfish were cultured in a fiberglass tank 50 L, 5 fish/ tank, fish were fed 3% BW, The experiment was carried out for 2 months. The Skin pigmentation of Goldfish was measured by using chromameter with the system CIE L*a*b* (CIE LAB). The results showed growth of goldfish did not within all treatments (P>0.05). Gold fish fed on FTF and FFTF shown the highest significant (P<0.05) brightness (L*) and yellowness (b*), whereas red (a*) no significant difference (P>0.05). The results indicated that supplementation of FTF and FFTF improved skin color and have not an adverse effect on growth
performance of gold fish.