نتایج جستجو برای: shrimp diseases
تعداد نتایج: 859725 فیلتر نتایج به سال:
Aquaculture contributes more than one-third of the animal protein from marine sources worldwide. A significant proportion of aquaculture products are derived from marine protostomes that are commonly referred to as 'marine invertebrates'. Among them, penaeid shrimp (Ecdysozosoa, Arthropoda) and bivalve molluscs (Lophotrochozoa, Mollusca) are economically important. Mass rearing of arthropods an...
The black tiger shrimp (Penaeus monodon) is a marine crustacean of economic importance in the world market. To ensure sustainability of the shrimp industry, production capacity and disease outbreak prevention must be improved. Understanding healthy microbial balance inside the shrimp intestine can provide an initial step toward better farming practice and probiotic applications. In this study, ...
non-commercial fish species of shrimp trawls were studied monthly from october 2005 to september 2006 in mahshahr creeks (darvish, doragh, bihad, ghazaleh, ghanam, zangi and patil). the trawl nets had a cod-end mesh size of 24mm. total catch was 6431 individuals weighing 55.5kg, and included 14 species of non-commercial fish species belonging to 14 families. the caught shrimp species were from ...
u-pb ages obtained on zircons from the investigated migmatites place new constraints on the evolution of the crustal rocks in the takab area. shrimp u-pb dating of inherited zircon in the melanosome parts of mafic migmatites from the takab complex gives a discordant age with an upper intercept of 2961±72 ma (mswd=0.5) and a lower intercept of 24.2±5.7 ma (mswd=1.7). in the concordia diagram, th...
Background: Alternative materials for antibiotics used in white leg shrimp farming were extensively investigated. The promising effects of plant based extracts controlling aquaculture diseases has been reported elsewhere. This study was conducted to examine the effect Solanum procumbens Lour. extract on survival, growth performance, innate immunity and protection against acute hepatopancreas ne...
Shrimp aquaculture plays the key role in Bangladesh seafood export industry. It includes species of Tiger prawn Penaeus monodon, and Giant river Macrobrachium rosenbergii, which have been widely farmed after 1980s. The industry is severely damaged due to diseases outbreaks hatcheries, nurseries grow-out ponds since 2000, thus this sector shows shrinkage from global market. However, last few dec...
TLA!rapid expansion of shrimp farming has resulted in extensive excavation of coastal sediments that contain pyrite (FeS2). When oxidised, pyritic sediments develop into acid sulfate soils (ASS), which are characterised by high acidity and elevated concentrations of sulfate and toxic metals (Golez 1995). ASS reduce water quality in shrimp ponds, groundwater and nearby creeks and estuaries. Cons...
Socio-economic and environmental impacts analysis of shrimp (Paeneus monodon) farming in the gher area of Bagerhat District is an important aspect where shrimp cultivation increased over the years. An investigation was conducted to evaluate the present socio-economic status as well as to investigate the soil and water quality of the study area. This study has been carried out at ten villages in...
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