The possibility production of food pellets for common carp(Cyprinus carpio)in the rearing stage with emphasis on attractiveness and strength

This study was to investigate the possibility of pellet production for grow out common carp considering attractiveness and stability of the pellets. The experiment consisted of two periods and was conducted at the Caspian Sea ecology research center in 2011 and 2012. In period one, two types of pellet with similar protein level (31%) and different energy contents (3000 and 3500 cal/g) were formulated by the ingredients used in fish feed industry. In period two, 316 juvenile carp with initial weight of 27.9g were assigned randomly to 9 fiberglass tanks (4×4×1 m), with three replicates for each treatment. The fish were fed by three diets throughout the eight weeks study , two diets were formulated in the current study and third one was a commercial carp diet with 25% protein. The results showed that feeding with diet containing 31% protein and 3500 cal/g energy led to a feed conversion ratio of 3, but this value was recorded 1.9 for commercial diet. The type of diets was also influenced (P<0.05) average final weight of the fish. Fish fed diet containing 31% protein and 3500cal/g energy showed largest weight gain and this value was significantly different from the other treatments. Pellet stability test showed that commercial pellet water stability was 3min, but this value for the two formulated pellet were 12 min. There was a highly significant difference for water stability between the commercial pellet and the formulated pellet. The result suggests that the formulated pellet in the current study can be easily replaced by commercial pellet.

Bibliographic Details

Main Authors:	Ramezani, Hamid, Hafeziea, Mahmoud, Fazli, H., Safari, Reza, Azari Takami, Abdolhamid, Ganei Tehrani, Mahmod, Najafpor, Shaban, Behrozey, Shariar, Shakori, Matin
Format:	Report biblioteca
Language:	Persian
Published:	Iranian Fisheries Science Research Institute 2014
Subjects:	Ecology, Commercial, Diet, Pellet, Carp, Common carp, Cyprinus carpio, Rearing, Protein, Energy, Juvenile, Feeding,
Online Access:	http://hdl.handle.net/1834/13397
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