Premium
Gelatin‐walled microencapsulated diet for larval shrimp ( Penaeus japonicus Bate) manufactured using the fluidized bed coating process
Author(s) -
Xie Zhongguo,
Wang Furong,
Liu Haiying,
Guo Shidong,
Zhu Aixia,
Niu Huaxin
Publication year - 2010
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.2010.02557.x
Subject(s) - shrimp , biology , hatching , gelatin , penaeus , zoology , larva , fluidized bed , crustacean , food science , fishery , ecology , biochemistry , chemistry , organic chemistry
The gelatin‐walled microencapsulated feed for larval shrimp ( Penaeus japonicus ) was produced using the fluidized bed coating process. The microencapsulated diet showed no significant agglomeration in the coating process and the diameters of the microdiet were in a normal distribution. Scanning electron microscopy microphotographs showed the appearance of a microencapsulated diet with a uniform surface and a continuous film around the core. The retention efficiency of vitamin C was 88.2% in the coating process. The inclusion efficiency, lipid encapsulation efficiency and nitrogen retention efficiency of the microdiet were 92.2 ± 1.6%, 76.8 ± 4.1% and 60.6 ± 5.2% respectively. The mysis α of P. japonicus were reared for 20 days to the later larval stage. The wet weight of larval shrimp increased 300.0% in the microdiet from 10 up to 30 day after hatching. The wet weight and the total length of larvae were greater in co‐feeding compared with the control ( P <0.05), but there was no significant difference in larval survival between co‐feeding and control ( P >0.05). There were significant differences ( P <0.05) in the wet weight, total length and survival in the microdiet compared with the control. The results indicated a huge potential for the use of the gelatin‐walled microencapsulated diet for the partial and total replacement of live food for larval shrimp.