Prevalence of the infectious hypodermal and hematopoietic necrosis virus in shrimp (Penaeus vannamei) broodstock in northwestern Mexico

•IHHNV-infected P. vannamei exhibit reduced growth rates and abnormal feed-conversion rate.•IHHNV prevalence in shrimp broodstock from hatcheries located in northwestern Mexico varies from high to low.•This study is the first to examine the prevalence of IHHNV on broodstock from shrimp hatcheries. T...

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Bibliographic Details
Published inPreventive veterinary medicine Vol. 117; no. 1; pp. 301 - 304
Main Authors Mendoza-Cano, Fernando, Enríquez-Espinoza, Tania, Encinas-García, Trinidad, Sánchez-Paz, Arturo
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 01.11.2014
Subjects
Animals
Broodstock
Densovirinae - isolation & purification
Hatcheries
Host-Pathogen Interactions
IHHNV
Mexico
Northwestern Mexico
Penaeidae - virology
Penaeus vannamei
Prevalence
Mexico
Penaeus vannamei
Hatcheries
Prevalence
Northwestern Mexico
Broodstock
IHHNV
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Summary:•IHHNV-infected P. vannamei exhibit reduced growth rates and abnormal feed-conversion rate.•IHHNV prevalence in shrimp broodstock from hatcheries located in northwestern Mexico varies from high to low.•This study is the first to examine the prevalence of IHHNV on broodstock from shrimp hatcheries. The Penaeus stylirostris densovirus (PstDNV or IHHNV) is the smallest of the known shrimp viruses. It causes severe mortalities in juveniles and sub-adults of the blue shrimp Penaeus stylirostris, while specimens of the white shrimp Penaeus vannamei infected by this virus exhibit reduced growth rates and negative effects on the feed-conversion rate (FCR). To date, no descriptive epidemiological surveys on the prevalence of this virus in shrimp broodstock have been performed. In this study, the prevalence of IHHNV in broodstock of the white shrimp P. vannamei from hatcheries on the northwest of Mexico region was estimated. Prevalence vary across different regions from high (63%) to low (6%) in shrimp broodstock. Several factors, as transport of pathogens by human activities, or the absence or implementation of ineffective biosecurity measures, may explain the observed differences. To the best of our knowledge, the present study is the first to examine the prevalence of IHHNV on broodstock.
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ISSN:0167-5877
1873-1716
DOI:10.1016/j.prevetmed.2014.09.006