Effect of Aloe vera extracts on the Growth, Feed Conversion Ratio of Oscar fish (Astronatus ocellatus)
Subject Areas : Fishery
M. A. Saeedi
1
(Dep. of Fisheries, Islamic Azad University, Kordestan Science and Research branch)
A. Matinfar
2
(Institute of aquaculture and fisheries research of Iran)
B. Salimi
3
(Dep. of Aquatic Animal Health and Disease, Islamic Azad University, Sanandaj Branch)
Keywords: Feed Conversion Ratio, Oscar fish (Astronotus ocellatus), aloe vera, Growth factors and survival,
Abstract :
Nutritional needs are important in successful breeding process of the fishes. Aloe vera gel having beneficial compounds such as the eight essential amino acids, monosaccharides and polysaccharides, vitamins C, B12, B6, B2, B1, A, E and minerals, can be used as a valuable supplement and food rations used in natural aquatic environment. Effect of prescription of this crude extract of plant Aloe vera in Oscar (Astronotus ocellatus) with an average weight of 17.57 ±2.56 g were studied in this research. Therefore, 54 fish in three treatments, each with 3 repeats were used in this research. Two treatments included a concentration of 2 and 5% crude extract of Aloe vera plant which were added to the Biomar feed size of 0.8 mm used for Carnivore fishes. Samples were fed for 60 days with the fortified feed. The control sample feed were not fortified. The results indicated that feed fortification with plant extracts of Aloe vera makes a significant difference (p<0.05) in weight gain, growth factor and coefficient of obesity and reduced food conversion factor compared with controls, and increase in fortification showed an increased effect. No mortality was observed in both treatments. Fortified feed at 5% showed a better result as a whole.