Effects of different live food organisms on the growth of Osphronemus gourami (Giant gourami) fry / Mark Anthony B. Cinco, Mary Jane pages Dionisio and John Arvin R. Nuñez

Experimental Research Methodology

Thesis BS Fisheries University of Rizal System. Cardona 2019

One of the important factors to consider in larval rearing is the initial feed that the larva eats after they have consumed their yolk sac. One of the bottlenecks in fish production was the initial feed provided to the fry transitioning from endogenous to exogenous feeding, hence it is important to study developing hatchery techniques to provide seed stock for culture and wild stock rehabilitation. The success of hatchery production of fish fingerlings in the grow-out production system depends largely on the availability of adequate live food for the feeding of fish fry, fry, and fingerlings. Live food organisms contain all nutrients such as essential proteins, lipids, carbohydrates, vitamins, minerals, amino acids and fatty acids and are therefore commonly referred to as living nutritional capsules. Providing adequate live food at the right time plays an important role in maximizing the growth and survival of young finfish and shellfish. The purpose of this study was to determine the effects of different live food organisms on the growth of O. gourami fry was conducted at BFAR-NIFTC for a period of 10 days where the fry were fed to satiation with artemia, rotifer, infusoria and moina. All experimental diets presented growth increment from 0.76mm to 1.30mm in the span of 10 days. Survival rate was also high from 95.56% up to 97.78%. The control for this experiment was moina (T1) which gained the highest length increase of 1.30mm with 95.56% survival rate, followed by artemia with 1.02mm length increase and 97.78% survival. Infusoria shows an increase in length of 0.81mm and a rate of survival of 97.78% while rotifer provided to 0.76 length increment and 94.44% survival. It is concluded that all the live food organisms used in this experiment was suitable as initial feed to the fry after it has consumed its yolk sac. Providing adequate amount of live food can help promote good growth and survival to the fry and minimizing stress contributors can help attain optimum survival rates.

Cinco, M. A., Dionisio, M. J. and Nuñez, A. R. (2019). Effects of different live food organisms on the growth of Osphronemus gourami (Giant gourami) fry. Cardona: University of Rizal System.