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A review and analysis of the studies on histopathology of White Spot Disease in shrimp propagation and breeding centers of Iran
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Issa Sharifpour    1, Shapour Kakoolaki1 , MohammadKhalil Pazir1 , Behrooz Gharavi1 , Abolfazl Sepahdari1 , Babak Ghaednia , Mohamadali Nazzari1 |
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Abstract: (373 Views) |
Since shrimp white spot virus has infected shrimps of all ages and caused widespread loss of shrimps in Iran and across the world, and the pandemic has caused great loss for shrimp farmers, many studies have been carried outto this day in order to identify the reasons and the risk factors regarding this fact. Regarding the importance of the subject and also the different opinions on the results of the past researches, in this study, we have tried to carry out a retrospective review on past studies in Iran and other countries especially on the target tissues for shrimp white spot virus in order to specify the tendency of the white spot virus generally. In this survey, the accomplished studies and researches in the Shrimp Research Center (Bushehr Province), other research centers, universities and higher education centers in Iran and other countries, were collected and the studies carried out on hepatopancreas, intestine, gill and other tissues were examined. Most of the target tissues for white spot virus in Penaeus vannameiwith high intensity are; hemolymph, posterior intestine epithelial cells and cephalothorax epidermis.
Some researchers have claimed that the epithelium tissue is the most targeted tissue for white spot virus in penaeus vannamei. The lowest mean values of severity index (SI) were found to be from hemolymph, posterior intestine epithelial cells and cephalothorax epidermis. This could be due to more contact surface of the epidermis with the virus and also more receivers for the virus or lower operation of the immune system especially in horizontal transmission.
It seems that hemolymph is the most probable early target tissue for the virus in vertical transmission because the virus replication is at a higher level compared to the other tissues.The most of researchers have pointed out in their researches that tissue of gill, stomach, hepatopancreas and intestine of shrimp are the most important tissues in relation to the white spot virus infection. |
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| Keywords: Shrimp, Viral diseases, Histopathology, White spot virus, Shrimp propagation centers, Shrimp rearing farms |
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Full-Text [PDF 1014 kb]
(155 Downloads)
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Type of Study: case report |
Subject:
بهداشت بيماريها
Received: 2023/07/3 | Accepted: 2024/06/30 | Published: 2024/08/10
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