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Effect of Dietary Supplement on Organs Study in Red Tilapia
(Oreochromis sp.)
Asma Hanif Binti Mohd Hanafi
Supervisor: Dr. Nor Omaima Binti Harun
Bachelor in Science (Biological Sciences)
School Of Fundamental Science
Rapid growth of aquaculture industry had increased the demand of aquaculture
production where availability of protein sources like fishmeal is scarce and expensive.
This study aim to determine the positive effect of dietary supplements; Pleurotus
ostreatus (oyster mushroom), Eisenia foetida (earthworm), Nepenthes gracilis (pitcher
plant),a combination of three types diet and commercial pellets as a control to organs
of red tilapia through histological changes of gills, liver, and small intestine by using
H&E hemoxylin for 28 days. Different changes in different organs was appeared after
28 days. The liver alteration showed vacuolation, necrosis, hemorrhage, and presence
of glycogen in the hepatocytes. The small intestine showed necrosis of mucosa,
formation of lipid, folded and loose of the lamina propria in different diets. In
conclusion, earthworm diet was the best choice alternative diet supplement in
improving immunity against pathogen and enhancing nutrient of fish.
Keywords: Fish, histology, Eisenia foetida, Pluerotus ostreatus, Nepenthes gracilis.
gills, liver small intestine.
386 | U M T U N D E R G R A D U A T E R E S E A R C H D A Y 2018