عنوان مقاله [English]
There are several factors affecting Angel Fish frys(Pterophyllum scalare) survival and quality. In this study, the effect of diet on weight, length, specific growth rate index, weight growth and survival of Angel Fish fry have been studied. Food treatments include dry blood worm, Artemia encapsulated cyst and dry blood worm in addition to, Artemia decapsulated cyst. Three repetitions had to be done with each food diet. Thus 9 aquariums with 60×40×30 centimeter dimension were allocated for this treatment. Temperature of these aquariums was considered at 31 degree of centigrade and the others factors including the temperature pH and oxygen degree was fixed and similar for all treatments. Then degree of growth and survival of Angel fry was studied in 30 days. The result of this search has shown that growth and survival of Angel fry with dry blood worm in addition to Artemia decapsulated cyst has the best degree of growth in comparison to the other observed food diet and using the mean test between length, weight and survival percentage, it became known that there is significant difference between the kind of food treatments (P<0.05). for specific growth rate index and weight growth with dry blood worm has the best degree in comparison to the other observed diet and there is no significant between dry blood worm in addition Artemia decapsulated cyst treatment with dry blood worm (P>0.05).