Effect of diet on special growth rate (SGR) and weight growth (WG) of Angel fish fry's (Pterophyllum scalare)
Subject Areas : Marine BiologyS. Abdolbaghiyan 1 , A. Matinfar 2 , Sh. Jamili 3
1 - Faculty of Agriculture and Natural Resources, Science and Research Branch, Islamic Azad University
2 - Iranian Fisheries Research Organization, Tehran
3 - Iranian Fisheries Research Organization, Tehran
Keywords: special growth rate, Angel fish, Pterophllum scalare, Artemia cyst, dry blood worm, weigh growth,
Abstract :
There are several factors affecting Angel fish fry's (Pterophllum scalare ) survival and quality and the type of diet as the most important factor. In this study, the effect of three different diets of food on special growth rate (SGR) and weight growth (WG) during 30 days has been studied. Food treatments including dried blood worm, Artemia decapsulated cysts and dry blood worm together with Artemia decapsulated cyst. For each food diet three replications took place. For this research 9 aquaria with 60×40×30 centimeter dimension were allocated to the treatments .Temperature of the water was set in 31 degree centigrade. Other factors such as temperature, pH and oxygen were similar for all treatments. The results of this search showed that the type of food affects the Angel fish fry's SGR and WG and the maximum SGR belonged to dry blood worm food treatment resulting 0.0350 ± 0.0083. And the minimum amount belonged to Artemia decapsulated cyst resulting in 0.0189 ± 0.0075. For the weight growth (WG) the maximum belonged to dry blood worm as 194.444 ± 73.102 and the minimum belonged to Artemia decapsulated cyst which is 80.318 ± 39.596.