The Effect of Feeding Different Brands of Shrimp (Fengli-Kaiohji) on the Survival of Vanami Shrimp Seeds in Nursery Ponds

Abstract

This study aimed to analyze the effect of feeding different brands of animal feed, namely Fengli and Kaiohji, on the survival of vanami shrimp seeds during the ponding process. The methods used included observation of water quality (pH, salinity, temperature) and calculation of shrimp seed survival in ponds with a size of 10 m x 6 m and a stocking density of 500,000 fish/field. Feeding was done routinely at the rate of 500 grams per day for 8 days with different treatment patterns in each pond. The results showed that feeding with Fengli brand gave a higher survival rate of shrimp seeds than Kaiohji brand. During eight days of nursery, the water pH naturally decreased from 7.5–7.6 to 7.1–7.2 due to the accumulation of metabolite residues, feed, and microorganism activity. Despite the decrease, the pH remained within the optimal limits (7.0–8.5) for whiteleg shrimp seeds. The water temperature was stable at 29–30°C, supporting the growth and metabolism of larvae. The highest survival rate was obtained in treatment A1 (Fengli) at 70%, while the highest from Kaiohji was B3 with 61% survival. This study provides recommendations for the selection of appropriate feed to improve the survival of vanami shrimp seeds in the ponding process.