Crustaceans Articles
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Skretting produces sustainable fish food with the help of BESTMIX Recipe Management - Case Study
Skretting, the global aquafeed division of Nutreco, provides innovative and sustainable nutritional solutions and services to the aquaculture industry. This global player has production facilities in 18 countries on five continents. In 2022, the company produced and supplied more than 3 million tons of high-quality feed for more than 60 species of fish and crustaceans. For Skretting, R&D is ...
By BESTMIX
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About use of "fish meal processing machinery"
Fishmeal processing machinery mainly uses fish with low economic value, fish production and processing waste or some crustaceans and cephalopods as raw materials to produce and process into fishmeal machinery and equipment. In addition to being used for the production of fish meal for feed, if the raw materials are fresh and the facilities meet hygienic conditions, it can also be used for the ...
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Krill and Osmoregulation - Case Study
One of the most frequent uses of krill is in special diets, when salmonids are transferred from fresh to sea water. This is due to the osmoregulating properties of krill. Krill is rich in trimethylamine oxide (TMAO) which is a known osmoreguator. The high salt content of the environment represents a strong physiological challenge for fish and crustacean. They need to keep their hemodinamic and a ...
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Krill as a Source of Minerals - Case Study
Krill has a low content of ash making ideal for fresh water feeds. It is lower in content of phosphorus than other marine based meals such as shrimp or fish meal. Its calcium/phosphorus ratio is near to 1,5:1 which favors the absorption of both minerals, and it is significantly lower compared to fish or crustacean meals (3 or ...
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Chitin/Chitosan as an Immunostimulant - Case Study
Chitin is component of several crustacean and insect carapace. It is an energy source for several species which can degrade chitin through special enzymes. Disease control, profilaxis and eradication are based on the use of vaccines and chemiotherapeutical substances. But there are a number of pathologies that have no known cure. There are for example, the case of Piscirichettsiosis in Chilean ...
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Krill as a Taste Attractant - Case Study
Both fish and crustaceans live in an immersed aquatic environment, where their chemioperceptive system receives permanent stimulation by soluble compounds. These substances are usually of low molecular weight, non-volatile and most of them contain nitrogen (amino acids, nucleotides, etc.). These compounds stimulate the chemioperception of the animal (taste and smell), and its behavior (feeding ...
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Fish Feed Extruder Machine In Aquatic Food Pellet Production
There are two types of aquatic food pellets commonly sold for farming fish or other aquatic species. The pellets have enough density to allow them to sink into the water, which is necessary for crustaceans or bottom-feeding fish, or they have a reduced density to allow them to float on the surface of the water. Floating fish feed pellets are usually produced by floating fish feed pellet machine ...
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How To Produce Fish Feed Pellets With A Proper Density
Fish digestive system is very short and that is why fish feed must be light. Both dimensions and shape of fish feed pellets must be adjusted to size of fish. Besides, in water pellets must behave according to habits of fish: sink or float on surface of water. And this feature of feed depends on pellet density. Fusmar fish feed mill machine can make kinds of pellets. Kinds Of Feed Pellets For ...
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What Are the Common Habits of Silver Arowana?
The Silver Arowana (Scientific Name: Osteoglossum bicirrhosum) is relatively large in size, strong in body, fast in growth rate, and large in food intake. They like to live in weakly acidic or neutral soft water. The best living water temperature is between 24℃ - 28℃. They like to eat animal bait. Studies have found that Silver Arowanas are docile and have the strongest fertility among ...
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The Blob Returns
In the autumn of 2013, Nicholas Bond, who was then the State Climatologist for the state of Washington, first detected a large (500 miles wide x 300 feet deep), circular body of sea water which had not cooled as expected and was 2 to 3 degrees warmer than the rest of the surrounding Pacific Ocean. By mid-2014, this unnaturally warm patch of ocean had grown to 100 miles long x 1000 miles wide x ...
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Affetcs of Yellow Head Virus (YHV)
Yellow Head Virus (YHV) Yellow Head Virus was the first major viral disease problem to affect Asian shrimp farms when it was diagnosed as causing extensive losses for shrimp farming. YHV and its close relatives GAV and LOVV are single stand RNA viruses, similar to TSV. The first records of this virus were from P. monodon ponds in Eastern Thailand, it had moved to Southern Thailand and was ...
By Vinnbio
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Affects of White Spot Syndrome Virus (WSSV) in Shrimp Farming (Part 3)
White Spot Syndrome Virus (WSSV) is now and has for some time been the most serious threat facing the shrimp farming industry in Asia. It is an extremely virulent pathogen with a large number of host species. This disease is probably the major cause of direct losses of shrimp farming in Asia. Similarly, in Latin America, losses due to WSSV have been substantial. In addition, indirect losses in ...
By Vinnbio
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Affects of Viral Disease in Shrimp Farming
In Shrimp Disease control, they are Six viruses were known to affect Penaeid shrimp, but there are more than 20 viruses were identified as having affected wild stocks and commercial production. The OIE now lists seven viral diseases of shrimp in the Aquatic Animal Health Code, which are considered to be transmissible and of significant socio-economic and/or public health importance. These ...
By Vinnbio
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Biological water treatment in aquaculture by means of “Mutag BioChip™ RAS Process“
Aquaculture or fish farming means the artificial breeding and raising of aquatic creatures. They include fish as well as crustaceans and shellfish, which are raised and stocked under controlled conditions by using techniques and technologies offering an increased level of productivity which cannot be realized under natural conditions. Due to the increased demand for freshly caught fish and ...
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Does one of the world’s most abundant animals need protection from our appetite?
As demand grows and habitat disappears, scientists ponder tighter controls on the Antarctic krill harvest. Barely longer than your thumb, weighing under an ounce and nearly translucent, delicate crustaceans known as krill are vital to ocean ecosystems around the world. In the waters that encircle Antarctica, krill are an essential food source for penguins, baleen and blue whales (which can eat ...
By Ensia
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Benzoylurea pesticides used as veterinary medicines in aquaculture: Risks and developmental effects on non‐target crustaceans
Diflubenzuron and teflubenzuron are benzoylureas that are used in aquaculture to control sea lice. Flubenzurons have low toxicity to many marine species such as fish and algae, but by their nature are likely to have significant adverse effects on non‐target species such as crustaceans and amphipods. Although the exact mechanism of toxicity is not known, these compounds are thought to inhibit ...
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The Role of Mangroves in Fisheries Enhancement
In 2011 humans caught and consumed 78.9 million tonnes of fish, crustaceans, molluscs and other species groups from the world’s oceans, accounting for 16.6% of the world’s animal protein intake (FAO 2012). This is projected to increase further, to over 93 million tonnes by 2030 (World Bank 2013). Global demand for fish products has increased dramatically over recent decades. Fishing ...
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Does crustacean ethoxyresorufin O‐deethylase activity vary during the molting cycle?
We report herein whether microsomal EROD activity in the hepatopancreas fluctuates during the molting cycle of the fiddler crab, Uca pugilator. Results showed that microsomal EROD activity varies significantly during the molting cycle, with the lowest enzymatic activity occurring in late premolt stage. These results clearly show that crustacean EROD activity is influenced by the molting ...
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State of the Art Information on Mangrove Ecosystems in Indonesia
Status and Trends of Mangroves in Indonesia GENERAL CONDITION OF MANGROVES IN INDONESIA Indonesia is a tropical archipelago with coastlines measuring a total length of 95,181 km, making it the country with the fourth longest coastline in the world (EarthTrends WRI, 2003, and Rompas, RM.2009). All along the coast are the estuaries of rivers great and small that flow the whole year round ...
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Comparing the effectiveness of chronic water column tests with the crustaceans Hyalella azteca (order: Amphipoda) and Ceriodaphnia dubia (order: Cladocera) in detecting toxicity of current‐use insecticides
Standard U.S. Environmental Protection Agency laboratory tests are used to monitor water column toxicity in U.S. surface waters. The water flea Ceriodaphnia dubia is among the most sensitive test species for detecting insecticide toxicity in freshwater environments.Its usefulness is limited, however, when water conductivity exceeds 2,000 µS/cm (approximately 1 ppt salinity) and test ...
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