Progress in research on acute hepatopancreatic necrosis disease (AHPND)

Effect of Red Seaweed Kappaphycus alvarezii on Growth, Survival, and Disease Resistance of Pacific White Shrimp Litopenaeus vannamei Against Vibrio harveyi in the Nursery Phase

“…This may be due to the inflitration of bacteria into the hepatopancreas and those bacteria infiltrating surrounding tissues disrupted the integrity of tubules through stimulation of necrosis of infected cells. Similarly, a study done by others shown that several Vibrio species were found in healthy hepatopancreas in P. vannamei [9]. Although, other researchers have found that there were no sign of bacteria in masssive sloughing of hepatopancreas because gastric barrier prevents bacteria to infiltrate the hepatopancreas [6].…”

“…Another study suggests that red seaweed %powder could prevent the infection by Vibrio by stimulating the immune system [14]. This may be achived by the immunostimulant ability of polysaccharides consisted in the seaweed product [2][3][4][5][6][7][8][9][10][11][12][13][14]. In addition, one study also argued that seaweed could defend shrimps from bacterial infection because it contains halogenated compounds [11].…”

“…The antibacterial activity of Kappaphycus alvarezii was reported against animal borne bacterial pathogens [3]. It has been suggested by several studies that seaweed or macroalgae provide a great variety of metabolites and natural bioactive compounds with antimicrobial activity, such as polyunsaturated fatty acids, polysaccharides, phlorotannins and other phenolic compounds, and carotenoids [4][5][6][7][8][9][10][11][12][13][14][15][16]. Recently, Sakthivel et al [17] reported that the application of red seaweed by-product paste through enrichment on live food Artemia nauplii can enhance the shrimp growth and resistance against salinity stress and Vibrio infection in white shrimp culture during the hatchery phase.…”

Necrosis aguda del hepatopáncreas: una revisión de la enfermedad en Penaeus vannamei

“…Además, es común la presencia de parasitosis secundarias Pantoja y Lightner, 2014;Hong et al, 2015).…”

“…sistemas de diagnósticos moleculares basados en el PCR, siendo capaces de detectar la presencia de la cepa portadora de los genes que codifican para las toxinas (OIE, 2013;Nunan et al, 2014;Dangtip et al, 2015;Hong et al, 2015;Sritunyalucksana et al, 2015).…”