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Tag: "cows" at biology news

Skimmed milk -- Straight from the cow

Herds of cows producing skimmed milk could soon be roaming our p...cientists in New Zealand have discovered that some cows have genes that give them a natural ability to produce skimmed milk and plan to use this information...

Genome sequencing reveals key to viable ethanol production

...starch, and even tangential foods like beef, since cows are fed on corn—not to mention all the energy spent fertilizing, maintaining, and harvesting a crop like corn. Conversely, deriving ethanol from plant materials such as the corn stalks and wood chips is challenging because the plants?cellulose is a v...

The penalty of having a sister -- why sibling sex matters for male saiga antelopes

...mal health elsewhere in the animal world. In dairy cows for example, it is well known that calves from mixed litters are less fit. Female heifers from mixed litters are generally infertile. But unlike dairy cows, in cases of saiga mixed-sex twins, the male foetus appears to be worse off, not the female. ...

New book uses ABCs to teach children microbiology

... that we all have an interest in, such as 'Why can cows use grass for food but humans can't?' and 'Why do we get gas after we eat beans?'" says author Rodney Anderson, a microbiologist and professor at Ohio Northern University, who presents photos he has collected of microorganisms shaped like letters of ...

New evidence of early horse domestication

... south in winter. The tradeoff, she says, was that cows and sheep give far fattier milk year round, which can be made into yogurt and cheese. Sheep also provide wool. Kazakh people today still eat horsemeat. They were forced to abandon their nomadic lifestyle during the Soviet era and have returned to s...

Transgenic goat's milk offers hope for tackling children's intestinal disease

...s have been looking for ways to enrich the milk of cows and goats with some of the beneficial compounds li...milk on ruminants -- animals like goats, sheep and cows -- which have multi-chambered stomachs. In both animal models, the results of this study indicated...

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

...est half of the nation's 450,000 "downer" cows, or cows that could not walk. The surveillance program fou...an, allowing meat only from the carcasses of young cows that have had their spinal cords, vertebrae, brains and bone marrow removed. But the ban was re-im...

Study finds that a woman's chances of having twins can be modified by diet

...of the introduction of growth-hormone treatment of cows to enhance their milk and beef production," said D...n. These findings are similar to those observed in cows by other researchers, namely that a woman's chance of having twins appears to correlate directly wit...

Wisconsin scientists find a way to make human collagen in the lab

...ine collagen because the material now gleaned from cows can prompt an unwanted immune response in patients and it can harbor animal pathogens that might infect humans. The Wisconsin team discovered a way to make the long, slender collagen molecules, in essence, by having the protein assemble itself. What...

Testes to incubate stem cells

...cessfully harvested spermatogonial stem cells from cows and cultured them inside mouse testes. The hope is that the same thing could be done for men. "This is a very promising route to help young cancer patients undergoing chemotherapy," Dirk de Rooij of Utrecht University, Netherlands, told participants ...

Chernobyl: The true scale of the accident

...as especially true of children who drank milk from cows who had eaten contaminated grass. Since iodine concentrates in the thyroid gland, this was a major cause of the high incidence of thyroid cancer in children. Several recent studies suggest a slight increase in the incidence of leukemia among emergen...

Unweaving amyloid fibers to solve prion puzzles

...es barrier while others can--as they have with mad cows and humans.," says Lindquist. That gap has also been observed between other species, she notes: "In fact, some type of prions from infected hamsters can't make the species jump into mice, while others do, and vice versa." While the results of this r...

It's electric: Cows show promise as powerplants

...that is the primary component of the roughage that cows eat. That breakdown releases electrons. This study represents the first time that scientists have used cellulose to help charge a fuel cell. The researchers presented their findings on August 31 in Washington, D.C., at the national meeting of the A...

Roundup®highly lethal to amphibians, finds University of Pittsburgh researcher

...led most of the frogs. "It's like killing all the cows in a field and seeing that the field has more grass in it--not because you made the grass grow better, but because you killed everything that eats grass," he said. Previous research had found that the lethal ingredient in Roundup® was not the herbic...

Bugs, even 'bad' ones, can be educationally beneficial, new book says

...e flies were feasting on and causing infections in cows in Zimbabwe. Entomologists led by Steve Torr of th...Greenwich in the United Kingdom placed 60,000 fake cows made of cloth and steeped in insecticide on cattle ranches. Instances of infections dropped from 10,...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...ocalizations to warn of predators. Adult bulls and cows have no enemies, except for humans, but young elephants are susceptible to attacks by lions and hyenas. When a predator appears, older members of the herd emit intense warning calls that prompt the rest of the herd to clump together for protection an...

Bacteria collection sheds light on urinary tract infections

...Is were genetically related to E.coli strains from cows that were in the collection of strains at the Gastroenteric Disease Center. Riley and DebRoy reported their findings in a recent issue of Clinical Infectious Diseases. About 8 to 10 million people are diagnosed with urinary tract infections each ye...

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