RT - Journal Article T1 - Hemocytosis, a new disease in cultured shrimp, Penaeus indicus JF - IFRO YR - 2013 JO - IFRO VO - 12 IS - 3 UR - http://jifro.ir/article-1-1096-en.html SP - 605 EP - 619 K1 - Shrimp K1 - penaeus indicus K1 - Hemocytosis K1 - Intrahemocyte K1 - Mortality AB - Certain parasites can cause severe diseases in shrimp. Among these, protozoa are very important. 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, P. indicus when exposure to WSSV is occurred. LA eng UL http://jifro.ir/article-1-1096-en.html M3 ER -