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Tag: "farm" at biology news

Sustainable farm practices improve Third World food production

... The study, the largest of its kind to date -- 286 farm projects in 57 countries -- concludes that sustain...i Lanka and Mexico, Pretty found nearly all of the farm projects increased their yields, and harvests of some crops like maize, potatoes and beans increased...

World's pledge to halve hunger by 2015 looks like empty promise

...he says. Policies should also focus on increasing farm incomes in rural areas in low-income countries, as well as on generating non-agricultural employment, particularly in urban areas, to absorb rural migration. ...

Uncovering sex-change secrets of black sea bass

...irector of GreatBay Aquaculture, a commercial fish farm in Newington, NH. But the sex change problem must ...ts of the young fish, much as a thoroughbred horse farm invests in mares and stallions," he says. "It doesn't do us much good if we always have to go out an...

Evolution mystery: Spider venom and bacteria share same toxin

...te site; the bacterium causes various illnesses in farm animals. "Our research was inspired by the fact that we have a group of spiders with a unique toxin, and that toxin also happens to exist outside the animal kingdom in this particular bacterium," she added. "A pattern like this raises the possibilit...

Food-crop yields in future greenhouse-gas conditions lower than expected

... enclosures can differ greatly from those grown in farm fields, Long said. FACE has been the only technology that has tested effects in real-world situations, and, to date, for each crop tested yields have been "well below (about half) the value predicted from chambers," the authors reported. The results ...

Federal testing for mad cow disease a failure, law review editor says

...BSE in the U.S. was reported in December 2003 at a farm in Washington state. Because the cow was of Canadian origin, USDA officials insisted that the American beef supply was safe. However, after Japan and 52 other countries banned U.S. beef, the USDA started a program to test half of the nation's 450,000...

Harmful Algal Blooms monitored from space in Chile

...l information supports our strategic decisions for farm site location. "To obtain the amount of information covered with the EO data, alternative methods will be of considerable higher cost. With in situ measurements you cannot produce a gradient map as obtained with EO images. The value of this informa...

Biofuels researcher searches for new sources

... Ag Research Center "The advantage of using annual farm crops for ethanol production is that farmers can produce biomass with conventional crops and equipment, and can alternate crop production for energy, food or feed," he added. In areas with irrigation and enough heat, a double-cropping system with w...

Fire ants: Their true story told by the scientist who loves them

...stures of Southwood Plantation ?a corporate cattle farm just east of Tallahassee ?to area strip malls. The parking lot behind a local grocery store is a particular favorite. "Fire ants specialize in exploiting disturbed habitat, and they've thrived in part because humans have done a lot of disturbing," h...

Farm kids almost twice as likely to die from injury as children overall

...adian Medical Association Journal shows that young farm children, particularly boys, are about twice as li...f these findings and reviews the response to child farm injury in his country, Australia. ...

Gene therapy protects mice from the effects of whole-body irradiation

...adian Medical Association Journal shows that young farm children, particularly boys, are about twice as li...f these findings and reviews the response to child farm injury in his country, Australia. ...

Gene therapy accelerates healing of damaged skeletal muscle

...adian Medical Association Journal shows that young farm children, particularly boys, are about twice as li...f these findings and reviews the response to child farm injury in his country, Australia. ...

Technology exists to keep E. coli out of food

...n outbreaks. This system could be used from the farm to the retail market—for irrigation in fields, washing in processing plants and misting in grocery stores. "The results we're seeing are phenomenal. It's killing all bacteria and viruses. It even kills avian flu and anthrax spores," Feirtag said. ...

Virus may control Australia's

...ensive flooding in the 1970s the fish escaped from farm dams and took over the waterways. They can tolerate a wide range of water temperatures, salinity and pH levels. Carp can also survive and breed in polluted, poorly oxygenated water. "The fish grow to up to 20 kilograms or more in weight and each fem...

Researchers to study why dead zone returned to Lake Erie

...bal warming. Of the three causes, nitrogen from farm runoff and treatment plants is the most well known. The nitrogen in fertilizer causes algae blooms that sink to the bottom and are consumed by bacteria, which consumes oxygen. The second theory is that the zebra mussels may shunt the oxygen-consum...

Organic is healthier: Kiwis prove that green is good

...ke with kiwis grown next to each other on the same farm at the same time, in the same environmental condit...tioxidants and other compounds elevated in organic farm produce. Carl Winter, director of the FoodSafe Program at UC Davies, asks whether these increases in...

Map predicting spread of avian flu

... can predict the probability of infection from one farm to another; the 'transmission kernel'. They also identify high-risk areas in the Netherlands and analyze various control strategies, concluding that in these regions an epidemic can only be brought to an end by massive culling of susceptible farms. ...

What's in the water? Estrogenic activity documented in fish caught in Pittsburgh's rivers

...er and their prey, which may include toxic metals, farm and industrial runoff and wastes from aging munici... chemicals usually come from industrial pollution, farm animals, farm chemicals and municipal water treatment plants. What surprised us most in this study w...

Farmed salmon could become an invasive species in forest streams

...t: At present, breeding populations of escaped farm salmon are not known to exist on National Forest System lands, but the locations of Atlantic salmon farms and the sightings of escaped salmon indicate that streams on four national forests may be at risk: the Tongass and Chugach NF in Alaska, and the...

Arsenic in chicken feed may pose health risks to humans, C&EN reports

... anaerobic conditions, within live chickens and on farm land, the compound is converted into more toxic forms of inorganic arsenic. Arsenic has been linked to bladder, lung, skin, kidney and colon cancer, while low-level exposures can lead to partial paralysis and diabetes, the article notes. Use of r...

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