Publication Date:
2021-05-19
Description:
Certain diseases such as bacterial , viruses, parasirtic ones Protozoa parasites Could severe mortalities in farmed shrimp last decades. Two hundred and seventy Fenneropenaeus indicus with the weight of 10± 1.09 were selected , transferred to Iran Shrimp Center and distributed to the treatmentsand controls (3 groups). The objective of our study was to describe the signs, prevalence, and intensity of Hemocytosis, a new disease in shrimp, Fenneropenaeus indicus. The experimental design included three groups, one treatment as infected shrimp or group B and 2 controls with non-infected but exposure to White Spot Syndrom Virus (WSSV) shrimp as group A and non-infected non- exposure to WSSV shrimp as group C in triplicate. The results revealed that Hemocytosis associated with a decrease in hyalinocytes and large-granulocytes (less than 8%) and a considerable increase in semi-granulocytes in group A and B in contrast to group C that Hyalinocyte increased. This infection made the shrimp susceptible to WSSV disease. It is believed that Hemocytosis causes a condition which can result in a rapid mortality among susceptible species, F. indicus when exposure to WSSV is occurred.
Description:
Iranian Fisheries Science Research Institute
Description:
Published
Keywords:
White Spot Syndrome Virus
;
Fenneropenaeus vannemai
;
Challenge
;
Protozoa
;
Shrimp
;
Fenneropenaeus indicus
;
Bacterial
;
Parasites
;
Mortalities
;
Hemocytosis
;
Hyalinocyte
;
Species
;
F.indicus
Repository Name:
AquaDocs
Type:
Report
,
Refereed
Format:
56pp.
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