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Infectivity And Pathogenicity Of Baculovirus Penaei (Bp) In Cultured Larval And Postlarval Pacific White Shrimp, Penaeus Vannamei, Related To The Stage Of Viral Development, Hugh S. Hammer, Kenneth C. Stuck, Robin M. Overstreet
Infectivity And Pathogenicity Of Baculovirus Penaei (Bp) In Cultured Larval And Postlarval Pacific White Shrimp, Penaeus Vannamei, Related To The Stage Of Viral Development, Hugh S. Hammer, Kenneth C. Stuck, Robin M. Overstreet
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
The infectivity and pathogenicity of the penaeid shrimp virus, Baculovirus penaei (BP), is influenced by the stage of viral development. This study consisted of a preliminary experiment which showed that nonoccluded virus administered per os is infective, followed by two infectivity experiments. In the first phase of each infectivity experiment, mysis stage larvae of Penaeus vannamei were inoculated with BP and samples of infected tissue were collected at various times postinoculation (p.i.). These samples were then used to inoculate either mysis or postlarval stage P. vannamei in the second phase of each experiment. Viral inocula prepared from patently infected tissues …
Relationship Between Bp (Baculovirus Penaei) Energy Reserves In Larval And Postlarval Pacific White Shrimp Penaeus Vannamei, Kenneth C. Stuck, Lidia M. Stuck, Robin M. Overstreet, Shiao Y. Wang
Relationship Between Bp (Baculovirus Penaei) Energy Reserves In Larval And Postlarval Pacific White Shrimp Penaeus Vannamei, Kenneth C. Stuck, Lidia M. Stuck, Robin M. Overstreet, Shiao Y. Wang
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
The relationship between energy reserves of the penaeid shrimp Penaeus vannamei and Baculovirus penaei, or BP, were investigated in a series of experiments using mysis stage or early postlarval shrimp. Pre-exposure and post-exposure levels of protein and triacylgycerol (TAG) were determined. The effect of pre-exposure protein and TAG levels on susceptibility to BP infections was also investigated by starving a group of shrimp immediately prior to BP exposure. There was no consistent relationship between either pre-exposure or post-exposure protein levels and the percent of shrimp developing patent BP infections. There was, however, a significant positive correlation between TAG levels …
Effect Of Baculovirus Penaei On Growth And Survival Of Experimentally Infected Postlarvae Of The Pacific White Shrimp, Penaeus Vannamei, Kenneth C. Stuck, Robin M. Overstreet
Effect Of Baculovirus Penaei On Growth And Survival Of Experimentally Infected Postlarvae Of The Pacific White Shrimp, Penaeus Vannamei, Kenneth C. Stuck, Robin M. Overstreet
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
In a series of experiments conducted to investigate age and size-dependent effects of the baculovirus BP on postlarvae of the Pacific white shrimp, Penaeus vannamei, six groups of specific pathogen-free shrimp of different ages (mysis 2–3 through PL 25) were exposed to the virus and cultured for 15 to 21 days. All BP-exposed groups of early postlarvae (PL 9 or younger) became heavily infected within 2–5 days of initial exposure to the virus, and some of those groups experienced high mortalities compared to the noninfected controls. Postlarvae that survived the infection had highly variable and significantly reduced growth, as …