The market value of crustaceans depreciates during storage due to the appearance melanosis caused by polyphenol oxidases. Sulfite derivatives are used as melanosis-inhibiting agents, but their unhealthy effects make it preferable replace them with natural preservatives. In this work, a crude enzymatic extract from whiteleg shrimp (Penaeus vannamei) was characterized and test diphenol oxidase-in...

Este estudio tuvo como objetivo estimar la interaccion genotipo por ambiente para peso corporal (PC) y supervivencia a cosecha (SC), en presencia ausencia de Sindrome Mancha Blanca (SMB) dos lineas geneticas Penaeus vannamei (Crecimiento -CRE- resistencia SMB -RES-). La heredabilidad PC linea CRE fue 0.05 ± 0.16 0.35 0.15 ausencia, mientras que RES fueron 0.26 0.07 0.49 0.08 SMB, respectivament...

Abstract The Mahakam Delta is a large mangrove ecosystem in East Kalimantan with precious and massive species. Because of the conversion to shrimp aquaculture, has been devastated. This study looks at pond management Salo Palai, Muara Badak, Kutai Kartanegara, Kalimantan, using traditional polyculture concept increase productivity. current condition was decreased water quality, substrate infert...

Pacific white shrimp Penaeus vannamei that were pre-exposed to Taura syndrome virus (TSV) and then challenged with yellow head virus (YHV) acquired partial protection from yellow head disease (YHD). Experimental infections were carried out using specific-pathogen-free (SPF) shrimp which were first exposed per os to TSV; at 27, 37 and 47 d post infection they were then challenged by injection wi...

Necrotizing hepatopancreatitis (NHP) is a severe disease of farm-raised Penaeus vannamei that has been associated with mortality losses ranging from 20 to 95%. NHP was first recognized in Texas in 1985 (S. K. Johnson, p. 16, in Handbook of Shrimp Diseases, 1989) and is an economically important disease that has limited the ability to culture shrimp in Texas. The putative cause of NHP is a gram-...

the objective of our study was to explain the histopathological changes of monodon baculovirus (mbv) in hepatopancreas and midgut tissues of the cultured penaeus vannamei. five-hundred and forty juvenile of p. vannamei with average size of 7.99±0.54 g and 3600 post larvae 10-15 were distributed to 18 glass aquariums (50×50×60cm) with 100l well aerated water per each aquarium as water borne mbv ...

Biofloc systems in Pacific white shrimp (Penaeus vannamei) culture generate floccules that remove wastes, and hence, biofloc formation is promoted for production. This study evaluated the induction of using microalgae probiotic bacteria hyper-intensive culture. The experiment was performed six weeks tanks (28,000 L each) stocked 350 ind m-3 weight 1400 ± 30 mg. Three treatments were assessed: 1...

Salah satu tahapan pengolahan udang adalah pemotongan kepala (deheading) yang berfungsi menghilangkan bagian cephalothorax. Cara potong akan mempengaruhi rendemen head less dihasilkan, Selain bentuk ada produk kupas Peeled Tail On (PTO) yaitu masih disisakan batang ekor dan uropod (ekor kipas)nya. Tujuan dari penelitian ini untuk mengetahui Head Less (HL) diperoleh bahan baku (HO) berbagai spec...