Abstract
Tilapia (Oreochromis niloticus) is one type of fish that has high economic value and is widely consumed by the community. Therefore, the growth and development of tilapia larvae need to be considered. This study aims to determine the growth and development of tilapia larvae. The parameters in this study were observations of total larval length (TL), daily growth rate (LPH), and morphology of tilapia larvae. This research was conducted for 30 days. Measurements of total length growth and morphological development of tilapia larvae were measured on days 1, 5, 10, 15, 20, 25 and 30 DAH (Days After Hatching). Data were analysed descriptively. The results of this study showed that the growth of tilapia larvae from day 1 to day 30 increased. The development of tilapia larvae in the yolk sac phase occurred on day 1-7 and the transition phase (from endogenous feeding to exogenous feeding) occurred on day 6-7 DAH, and on day 8 the yolk sac had been exhausted. The morphological development of tilapia larvae began to form completely on day 10 DAH
Highlights
Tilapia (Oreochromis niloticus) is a type of fish with high economic value and is largely consumed by the society
The larval stage is divided into 2 stages, namely the pralarva and postlarva stages
Parent male and female tilapia were obtained from the Regional Technical Implementation Unit or Unit Pelaksana Teknis Daerah (UPTD) Fish Seed Center or Balai Benih Ikan (BBI) Lukup Badak, Pegasing District, Central Aceh
Summary
Tilapia (Oreochromis niloticus) is a type of fish with high economic value and is largely consumed by the society. According to [1], Tilapia (Oreochromis niloticus L.) is one of the freshwater fish that has a high selling value. Larval stage is one of the critical factors, in which there are still many obstacles in increasing the growth [3]. Increased growth and development of larvae is very important for larval survival and success in cultivation. According to [7], The growth rate of tilapia larvae was greater in larvae reared at a temperature of 31°C (day): 25°C (night) due to increased synchronization of digestion and feed utilization. Increased growth of tilapia larvae is associated with high feed conversion efficiency [8].
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