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Title of article :
Effects of intrinsic and extrinsic factors on the haemocyte profile of the prawn, Macrobrachium rosenbergii
Author/Authors :
Cheng، نويسنده , , Winton and Chen، نويسنده , , Jiann-Chu، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
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Abstract :
The giant freshwater prawn Macrobrachium rosenbergii was investigated for its total haemocyte count (THC) based on season, sex, size and feeding rate. The THC, when the prawns were subjected to injections of foreign materials was also investigated. The prawns displayed the highest and lowest THC in autumn and winter respectively, with no significant difference between male and female, or among animals with a body weight range of 7–115 g. The prawns displayed the lowest THC at D3stage, and the highest in C stage. The prawns displayed the lowest THC when they were fed at 0·1% feeding rate among feeding rates of 0·1%, 0·5%, 1·0% and 1·5% body weight day−1. Prawns injected with carbon powder and Enterococcus showed increased THC during the first 6 h. Prawns injected with saline and carbon powder had the lowest THC after 30 h, and recovered to the normal value after 54 h. Prawns injected with Enterococcus showed the lowest THC after 42 h, and showed delayed recovery.
Keywords :
season , Macrobrachium rosenbergii , Size , moult cycle , feeding rate , foreign material , haemocyte count
Journal title :
Fish and Shellfish Immunology
Journal title :
Fish and Shellfish Immunology
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