Aquatic Weed Control: Using Grass Carp (Martin W. Brunson)

Information Sheet Carp, or white amur, have been used for aquatic vegetation control in Mississippi for the past two decades. These fish, used as a 'biological control' for aquatic vegetation, can be effective and cost efficient when stocked at appropriate rates and when the problem-weed species is a plant preferred by carp. Although these fish are voracious herbivores, they exhibit preferences for... To read the complete article, Click here

Understanding and Control of Gangrenous Dermatitis in Poultry Houses (Dustan Clark, Susan Watkins, Frank Jones and Bob Norton)

Gangrenous dermatitis (GD) sometimes seems to occur almost spontaneously in birds 4-8 weeks of age. GD is also known as "gangrenous cellulitis," "wing rot" or "red leg." GD usually starts with the appearance of small pimples on the skin, soon progressing to involve large areas. Birds with GD have moist raw or dark areas where the underlying muscles are exposed. The breast, wings, rump and abdomen are most commonly involved. Blood-tinged fluid may be found beneath the skin. Fluid can be jelly-like in consistency. The liver and spleen may be swollen and... To read the complete article, Click here

Light finds the parasitic nematode in fish fillet

Parasitic nematodes are microscopic, but a major problem in the fish filleting industry. Scientists at Nofima have discovered that light and automation provides a better fillet. Separating the good fish fillet from the bad is generally done by hand based on observations when the fish is being processed. But a machine can soon be introduced into the... For further information, Click here

Aroma E

Aroma E consists of active ingredients that have shown documented effects on health- and performance in official feed trials with pigs and poultry. These are combined with active ingredients that in practical tests have shown the ability to interfere with the normal slurry processes, leading to more homogeneous slurry, together with a reduction in ... Further information, Click here

New Concepts on the Horizon: Phytogenics in Poultry Production (Tobias Steiner)

Modern poultry and egg production is facing several challenges. Growing demand for poultry products and rising prices for raw materials require the implementation of optimal production conditions with the aim to secure high animal performance. Phytogenic feed additives have gained considerable attention in the feed industry and producers are increasingly incorporating them into feeding programs. Today, 61 (non-EU) or 70% (EU) of the companies are using phytogenic additives in broiler feeds (World Poultry, 2008). In comparison to Antibiotic Growth Promoters, phytogenics... To read the complete article, Click here

Neptune to sell first batch of insect-based aquafeed

Neptune Industries, Inc., a world leader in the development of sustainable solutions for aquaculture, headquartered here, said it has received a Letter of Intent to purchase over 40 tons per month of its Ento-Protein (TM) , an insect-based alternative to fishmeal, from Zeigler Bros, Inc. of Gardners, PA. Ento-Protein (TM) is a high quality sustainable... For further information, Click here

Lactoburst* A Probiotic Immune Booster

Lactoburst * is a specially formulated probiotic formulation which would impart poultry nourishment and be a healthy substitute to achieve disease free & vigorous growth rates. Lactoburst * contains unique probiotic, non-pathogenic bacterial cultures along with yeast & vital enzymes... Further information, Click here

Two new fish species spotted in shallow water

Two fish species, the Dusky Spinefoot and the tiny Dalmatian Blenny, have been added to the list of fish recorded in Maltese waters. Small numbers of the Dusky Spinefoot, Siganus luridus, were noted in different occasions at Delimara, feeding on bottom algae a few metres from shore. Both species were... For further information, Click here

Two new fish species spotted in shallow water

Two fish species, the Dusky Spinefoot and the tiny Dalmatian Blenny, have been added to the list of fish recorded in Maltese waters. Small numbers of the Dusky Spinefoot, Siganus luridus, were noted in different occasions at Delimara, feeding on bottom algae a few metres from shore. Both species were... For further information, Click here

Effects of Fish Size and Feeding Frequency on Channel Catfish Production (Robinson and Li)

Mississippi State University Channel catfish (Ictalurus punctatus) raised in ponds are typically fed daily to apparent satiation to obtain maximum growth. However, under certain economic circumstances, catfish producers may feed less than daily to reduce feed cost and minimize economic losses. Robinson and Rushing (1994) compared different feeding strategies (once daily, every other day [EOD], once every third day [ETD] to satiation, and once daily to half satiation) for pond-raised channel catfish. They reported that maximum production was achieved by... To read the complete article, Click here

Aqua Technologies: Imaging system sorts fish

In the US Pacific Northwest, different species and stocks of Pacific salmon (Oncorhynchus) commingle as they migrate toward spawning areas. This often results in mixed-stock fisheries in which some stocks are abundant while others require protection. In fisheries that exploit complex stock mixtures, mass marking and mark-selective fishing emerged as... For further information, Click here

Cadmium and lead in bivalves: importance for food safety

The National Institute of Nutrition and Seafood Research (NIFES) has analysed the content of cadmium and lead in scallops and horse mussels harvested in Norwegian waters. The results show levels above EU's maximum limits when analysing the digestive gland of the scallop and the kidney of the horse mussel. Cadmium in the digestive gland from... For further information, Click here

Visible Implant Elastomer Tags (VIE)

VIE Shrimp and Fish Tags Hand Injection Kits The Visible Implant Fluorescent Elastomer (VIE) tagging system was developed to provide externally visible internal marks for fish and other aquatic animals. The elastomer system utilizes a specially developed, biocompatible... Further information, Click here

New Ballast Treatment Could Help Shield Lake Superior from Deadly Fish Disease

A Michigan Technological University professor has developed a new water treatment that could help keep a deadly fish disease out of Lake Superior. David Hand, a professor of civil and environmental engineering at Michigan Tech, has devised a simple way to treat ballast water in vessels ranging from pleasure craft to ore boats. His method is... For further information, Click here

Patent Filed for New Oxygenation Product for Fish Farming in Tidal Areas

On the heels of the emerging aquaculture industry's 'Blue Revolution,' Clean Water Scientific, Inc. announced yesterday it has filed a patent application with the U.S. Patent and Trademark Office for its groundbreaking new product O2 at Sea. The aquaculture revolution, similar to the agriculture industry's mid-century focus on... For further information, Click here

Brown Blood Disease (Robert Durborow and Dr. M. David Crosby)

Brown blood disease occurs in fish when water contains high nitrite concentrations.Nitrite enters a fish culture system after feed is digested by fish and the excess nitrogen is converted into ammonia, which is then excreted as waste into the water. Total ammonia nitrogen (TAN; NH3 and NH4+) is then converted to nitrite (NO2) that, under normal conditions, is quickly converted to nontoxic nitrate (NO3) by naturally occurring bacteria. Uneaten (wasted) feed and other organic material also break down into ammonia, nitrite, and nitrate in a similar manner. Brown blood disease occurs in fish when... To read the complete article, Click here

Help Create Optimal Show Performance with Vaccination

Competitions bring together people and horses from different corners of the country, but they also can bring disease. Ensuring horses are properly vaccinated before show season can help protect competing horses and prevent loss of performance. "Horses can be exposed to disease in the stable, during the trip or through contact with... For further information, Click here

International AquaFeed Magazine

International Aquafeed Magazine is published bimonthly by Perendale Publishers Ltd specifically for the aquafeed manufacturers and aquaculture industries together with all those working in the aquafeeding business including consultants, suppliers and research and development specialists worldwide. Based in the UK, we address... For further information, Click here

Taurine is not an essential amino acid for grow-out Atlantic salmon

Fish meal used in fish feed contains high levels of taurine, which is not the case for plant proteins. What are the consequences when the levels of plant protein in the diet are high? New research at NIFES shows that the farmed salmon's requirement for taurine is met when the feed contains sufficient amount of the precursor amino acids. Fish meal... For further information, Click here

Aqua: DHA improves survival and development of halibut larvae

New research from Norway shows the levels of DHA that ensure better growth, survival and normal pigmentation in Atlantic halibut larvae. The bottleneck in halibut farming is related to insufficient supply of important nutrients. Two feeding trials at NIFES, in collaboration with the Norwegian Institute of Marine Research, suggest for the first time... For further information, Click here

Help Create Optimal Show Performance with Vaccination

Competitions bring together people and horses from different corners of the country, but they also can bring disease. Ensuring horses are properly vaccinated before show season can help protect competing horses and prevent loss of performance. "Horses can be exposed to disease in the stable, during the trip or through contact with... For further information, Click here

Pre-Lambing Management of Ewes (Lowell D. Breeden)

How the pregnant ewe is managed during the last six weeks of gestation will have a very definite effect on the birth weight, growth and survivability of the lamb. As the following management procedures are discussed, remember that each sheep operation is different. Modify and adapt these practices to your operation. Several of these procedures may be done at the same time. This will cut down on the number of times and the labor involved in handling the pregnant ewe. No harm or damage to the ewe and/or her fetus should occur if she is handled gently, but firmly, and if you use common sense... To read the complete article, Click here

Separation Anxiety on Pets: Please Mom (or Dad), Don't Go!

That's what dogs with separation anxiety are saying when they notice their owners grabbing car keys and heading for the door after giving them a kiss good bye (and maybe a lipstick imprint on their forehead). This behavior disorder, which is often confused with other behavior problems linked with too little exercise or under socialization, is... For further information, Click here

Alfalfa Cubes for Horses Robert J. Coleman, L.M. Lawrence and J. Henning)

Forage is the basis for feeding programs for all classes of horses. Forage contains many nutrients, and the fiber provided by forage is essential for the maintenance of the horse's gastrointestinal health. Hay and pasture are the typical forage sources for horses, but when growing or harvesting conditions limit their availability, horse owners have to consider alternative forage sources. Forage cubes are gaining popularity as an alternative to feeding long-stem hay. The cubes available may be... To read the complete article, Click here

Tool to improve ocean aquaculture

A new automated tool that provides support for sea cage aquaculture managers in making crucial decisions about locating their sites and determining the number of fish that can be sustainably farmed is now available. A project undertaken by the Australian Institute of Marine Science (AIMS) in collaboration with the... For further information, Click here

AveSui Latin America 2008

Swine: Practical Ideas to Address High Feed and Production Costs

Pork producers are facing a period of rapidly increasing feed and production costs. The following management tips and resources have been compiled by the Pork Checkoff to assist producers in identifying opportunities to increase efficiencies and reduce costs. This information was gathered from experts and producers across... For further information, Click here

International market expansion for Landcatch

A delivery of eggs to South Africa and a first time supply of smolts to Denmark are the most recent additions to a growing list of countries into which Landcatch Ltd., the Scotland and Chile-based salmon breeding company, is selling its pedigree strains of Atlantic salmon. "The continuing geographic expansion of Landcatch stock placement is... For further information, Click here

How Much Does it Cost to Raise Dairy Goats?

There has been a lot of interest in the dairy goat industry over the past year. I get many calls asking about dairy goats, how much land it takes to raise them, what to feed them, and how to manage them. The one question I get asked very rarely is: how much does it cost?... For further information, Click here

Food allergens (Genon Laboratories Ltd)

Food allergens Detection and quantification of foodborne allergens: peanut, hazelnut, mandel/almond, egg, ei protein, beta-lactoglobulin, blg, b-lactoglobulin, sesame, gluten (gliadin), soya, shellfish, casein, histamine. Highly sensitive quantitative tests available plus low cost qualitative test for when a yes/no result is satisfactory.... Further information, Click here

Canola protein to feed aquaculture

Protein extracted from Saskatchewan canola could be finding its way to fish farms around the world to replace the disappearing Peruvian anchovy.Toronto-based Bio-Extraction Inc. (Bio-Exx) is building a $10-million low-volume, low-temperature canola crushing plant in the Corman Industrial Park to provide... For further information, Click here

Lowly 'balunggay' is protein food for tilapia

The lowly, less utilized Balunggay (scientific name: Moringa oleifera, Malunggay in Tagalog) is a good source of protein for Tilapia feeds. Wally Afuang, Executive Director of the Northern Negros Aquatic Resources Management Council (NNARMAC), said the Balunggay tree holds a... For further information, Click here

New pea protein based aquafeed factory taking shape in Germany

The construction of Aller Aqua's pea protein factory in Germany and one of the most modernized fish feed factories in Europe is nearing completion project is a jont-venture between Emsland Stärke GmbH (Germany) and Aller Aqua Technology (Denmark). The Aller Aqua unit, Aller Aqua Technology, the largest stockholder in the... For further information, Click here

Bull Selection for Heifers (Scott Greiner)

The economics of cow-calf production emphasize the importance of replacement heifers giving birth to their first calf by the time they are two years old. Since this female is bred shortly after reaching puberty, her first calf will be born before she is fully developed and mature. Therefore, this first-calf heifer warrants special management and breeding considerations to minimize the frequency of calving difficulty (dystocia). Dystocia must be minimized because it is expensive. Of obvious concern is the loss of females as well as calves through calving problems. However... To read the complete article, Click here

Castration of Pigs (Allen Harper)

May find a video sent by a community member showing his castration technique. Discretion advised. Castration of male livestock intended for meat production is a long standing management practice. In North American swine production, castration is essentially universal and only a select few male pigs are left intact as potential breeder boars. There are two primary reasons for feeding out barrows rather than boars in pork production. The first is behavioral. As the age and body size of sexual maturity is reached, boars tend to be more aggressive with pen mates and more difficult to handle than barrows of similar age and weight. The second and perhaps most important reason is that... To read the complete article, Click here

Protecting Oysters from Burrowing Shrimp

For members of the multimillion-dollar West Coast shellfish industry, their world is the oyster. Unfortunately, the oyster industry's ability to meet rising demands is hampered by two species of burrowing shrimp. So Agricultural Research Service (ARS) scientists are collaborating with colleagues from... For further information, Click here

Using New Genetic Techniques to Raise Bigger Yellow Perch

With the help of genetics, Ohio fish farmers will be able to raise the crème de la crème of yellow perch -- the state's No. 1 food fish -- with the potential to increase production efficiency up to 50 percent over current growth standards. Ohio State University aquaculturists with OSU South Centers at Piketon are analyzing the... For further information, Click here

Research program to enhance animal by-products value and utilization in aquaculture feeds

In Montreal, Canada, the Fats and Proteins Research Foundation, Inc. (FPRF) enhanced their international program aimed to support research on the use of animal by-products in aquaculture feeds. "The latest $112,000 in grants builds on ongoing work in order to understand the potential role of attractants and... For further information, Click here

Study shows salmon grow bigger with colder temperatures

A study carried out by the Royal Veterinary College (RVC) in London has shown Atlantic salmon incubated at lower temperatures are longer, heavier and more muscular than those incubated at higher temperatures.With global salmon consumption having more than doubled in the last 15 years, optimising the embryonic development of the fish will increase... For further information, Click here

Researching new aquaculture adventure

Researching new aquaculture adventure Farming of sea urchins is in the wind - and there are already several Norwegian sea urchin farmers. Over a period of many years, Nofima scientists have acquired knowledge that now makes sea urchin farming possible. 'The sea urchin is new as an aquaculture species,' says... For further information, Click here

Ganglioneuritis virus: Fears for future of abalone industry

Ganglioneuritis virus: Fears for future of abalone industry There are fears a deadly shellfish virus could infect Tasmanian and South Australian waters within months. Tasmania's Abalone Council is supporting calls for a ban on human activity on stretches of the Victorian coastline. The ganglioneuritis virus has... For further information, Click here

Breeding can reduce salmon lice problems

Breeding can reduce salmon lice problems

Some salmon are more easily infested with salmon lice than others. Utilising this in the breeding of farmed salmon can save millions and reduce the infestation pressure of salmon lice among wild salmonids. These are the findings of a recent Nofima research project. Recent media coverage has indicated that salmon lice have become resistant to... For further information, Click here

Breeding can reduce salmon lice problems

Breeding can reduce salmon lice problems Some salmon are more easily infested with salmon lice than others. Utilising this in the breeding of farmed salmon can save millions and reduce the infestation pressure of salmon lice among wild salmonids. These are the findings of a recent Nofima research project. Recent media coverage has indicated that salmon lice have become resistant to... For further information, Click here

The use of acid-based preservatives as storage control for fish, offal or by-catch (Christian Lückstädt)

The use of acid-based preservatives as storage control for fish, offal or by-catch

Almost one-third of the world fish harvest is not used for direct human consumption, but is converted into fish meal or fish oil for further application in animal feed. Therefore, about 25 million tonnes of fish are annually handled and processed in ways other than fresh, frozen, smoked or canned which are eaten (Balios, 2003). The supply of huge volumes of high quality fish meal is necessary to supply the rapid growing aquaculture industry, which is growing with around 10% annually (FAO). The amount of high quality fish meal of the total amount of fish meal is expected to grow from... To read the complete article, Click here