Data/hora: 04/06/2024 14:51:32

Provedor de dados: 	45	
País: 	Brazil	
Título: 	Hypoxia increases susceptibility of Pacific white shrimp to whitespot syndrome virus (WSSV)	
Autores: 	Lehmann,M.; Schleder,D.D.; Guertler,C.; Perazzolo,L.M.; Vinatea,L.	
Data: 	2016-04-01	
Ano: 	2016	
Palavras-chave: 	Litopenaeus vannamei; WSSV; Dissolved oxygen saturation; Immune response; Mortality.	
Resumo: 	The present study aimed to evaluate the mortality, reactive oxygen species production (ROS) and total hemocyte counts (THC) of the marine shrimp Litopenaeus vannamei infected with the white spot syndrome virus (WSSV) at three levels of oxygen saturation. For this, 360 shrimp (20±2g) were distributed in 24 tanks (60L), divided in two groups (infected and non-infected), which were subjected to 30, 60 and 100% of dissolved oxygen saturation (in quadruplicate). During 96 hours after infection, daily hemolymph samples were collected for hemato-immunological parameter evaluation (THC and ROS) and dead animals were removed and computed to assess cumulative mortality rates. In the infected group, animals subjected to 100% saturation showed higher ROS production (P&lt;0.05) after 48 hours, while THC was significantly reduced (P&lt;0.05), regardless of oxygen saturation. The hypoxia resulted in high mortality when compared to 100% saturation condition. In the uninfected group, no significant differences were observed in all evaluated parameters. Thus, the hypoxia condition increased the susceptibility of shrimp to the infection of WSSV, which may be partly related to the low ROS production showed by the animals subjected to 30% oxygen saturation.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000200397	
Editor: 	Universidade Federal de Minas Gerais, Escola de Veterinária	
Relação: 	10.1590/1678-4162-7942	
Formato: 	text/html	
Fonte: 	Arquivo Brasileiro de Medicina Veterinária e Zootecnia  v.68 n.2 2016	
Fonte: 	info:eu-repo/semantics/openAccess