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Penaeus vannamei isotrypsins: purification and characterization
Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2004Three isotrypsins from digestive gland of Penaeus vannamei were purified and characterized by molecular, biochemical and kinetic parameters. Purified isotrypsins A, B, and C are glycoproteins with molecular masses between 30.2 and 32.9 kDa, and, therefore similar to other trypsins.
Juan Carlos, Sainz +2 more
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Biochemical characterization of recombinant Penaeus vannamei trypsinogen
Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2019Trypsinogens are the inactive precursors of trypsins (EC 3.4.21.4), which are digestive serine proteases. Despite knowing the properties of trypsins from Pacific white shrimp, Penaeus vannamei, the biochemical properties of shrimp trypsinogens including activation mechanisms and kinetics are unknown, due to difficulties isolating them from natural ...
Martha, Guerrero-Olazarán +4 more
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Vitamin E requirement of Penaeus vannamei
Aquaculture, 1993Abstract An 8-week feeding trial was conducted to determine the dietary vitamin E requirement of the white-legged shrimp, Penaeus vannamei , using semi-purified diets. Shrimp exhibited significantly increased weight gain when fed increasing levels of vitamin E from 0 to 100 mg/kg diet, whereas no significant difference in growth was observed for ...
Haiqi He, Addison L. Lawrence
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Transmission of Necrotizing Hepatopancreatitis in Penaeus vannamei
Journal of Invertebrate Pathology, 1993Abstract Necrotizing hepatopancreatitis (NHP) has been an important disease of shrimp mariculture in Texas since it was first recognized in 1985. This disease has resulted in mass mortalities of Penaeus vannamei in commercial growout ponds. Though the cause has remained an enigma, results of a recent morphologic study suggested that the etiology was ...
Paul F. Frelier +2 more
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2021
In this paper, the decay law of lactic acid bacteria in Penaeus vannamei culture habitat was studied, and its effects on ammonia nitrogen, nitrite and algae in the culture water of Penaeus vannamei were investigated. The high-efficiency application of acid bacteria in Penaeus vannamei culture was provided.
Yongling Wang, Jiarui He
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In this paper, the decay law of lactic acid bacteria in Penaeus vannamei culture habitat was studied, and its effects on ammonia nitrogen, nitrite and algae in the culture water of Penaeus vannamei were investigated. The high-efficiency application of acid bacteria in Penaeus vannamei culture was provided.
Yongling Wang, Jiarui He
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Experiments on the growth of Penaeus vannamei Boone
Journal of Experimental Marine Biology and Ecology, 1980Growth rates of Penaeus vannamei Boone were estimated from field and laboratory experiments using both marked and unmarked shrimp. Field results with unmarked shrimp indicated growth rates of between 0.05 mm increase in carapace length per day (mm c.l./day) and 0.17 mm c.l./day, although rates of up to 0.31 mm c.l./day were also recorded.
A. Menz, B.F. Blake
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cDNA cloning of the lysozyme of the white shrimp Penaeus vannamei
Fish & Shellfish Immunology, 2003Lysozyme, an antibacterial protein, has been implicated in innate immunity in invertebrates, but its activity in shrimp remained to be determined. We cloned the white shrimp lysozyme cDNA using a PCR strategy and detected its activity in haemocytes using a lytic-zone assay against Micrococcus luteus.
Rogerio R, Sotelo-Mundo +5 more
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Penaeus vannamei protease stabilizing process of ZnS nanoparticles
International Journal of Biological Macromolecules, 2018The protease enzyme purified from the Penaeus vannamei shrimp has unique properties, so improving the stability of this enzyme can improve their practical applications. In this study, ZnS nanoparticles, which have special properties for enzyme immobilization, were synthesized using a chemical precipitation method, and Penaeus vannamei protease was ...
Mozhgan Razzaghi +2 more
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Characterisation of a serine proteinase from Penaeus vannamei haemocytes
Fish & Shellfish Immunology, 2005Serine proteinases are involved, besides digestive role, in immune response processes. In addition to the typical serine proteinase domain, proteinases from arthropod haemocytes contain so-called clip domains which are believed to exert regulatory functions.
Florinda, Jiménez-Vega +2 more
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IHHN virus: Infectivity and pathogenicity studies in Penaeus stylirostris and Penaeus vannamei
Aquaculture, 1984Abstract Infectivity studies of infectious hypodermal and hematopoietic necrosis virus (IHHNV) were conducted on Penaeus stylirostris and P. vannamei (representing species highly susceptible and highly refractory to the disease) via intramuscular injections of the virus. Distinctive histological lesion patterns were observed between species.
T.A. Bell, D.V. Lightner
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