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Tag: "flocks" at biology news

Drug resistant avian influenza viruses more common in Southeast Asia than North America

...H5N1 subtype has been spreading throughout chicken flocks and wild birds in Southeast Asia since it emerged in 1997. Between late 2003 and early 2004, outbreaks of highly pathogenic avian H5N1 influenza occurred among poultry in eight Asian countries, causing the death or destruction of tens of millions of ...

Faster immune system testing set to improve poultry quality

...are particular concerns. A simple test to identify flocks that have been immunosuppressed by non-apparent in...rovide poultry companies with an early warning for flocks that will experience secondary infections because of immunosuppression. The MOLECULAR TESTS projec...

Bird flu study highlights need to vaccinate flocks effectively

Incomplete vaccination of poultry flocks could make the spread of deadly strains of avian f...he first to quantify how incomplete vaccination of flocks can contribute to the undetected spread of the disease. Vaccination of commercial poultry against ...

Origen publishes in Nature a robust and versatile method for creating transgenic chickens

... designs that work well in model systems and breed flocks of birds depositing therapeutic proteins in their ...l germ cells, the ease of producing small or large flocks of chickens, and the existing infrastructure for rearing chickens and processing eggs means that the...

University of Alberta researchers unravel intricate animal patterns

...out how animals—fish schools, locust swarms, large flocks of birds--form large complex dynamical groups. It ...ies, says Eftimie. "However, we can think of those flocks of birds that fly in one direction, and then suddenly change direction 180 degrees, and compare this...

Bypassing eggs, flu vaccine grown in insect cells shows promise

...advisable in case a bird flu pandemic hits chicken flocks hard. The insect-cell technology also simplifies the manufacturing process in another way: A live flu virus is needed when growing vaccine in eggs, a danger when working with a potent bird-flu strain. The technology would also help make it possibl...

Study finds antibiotic resistance in poultry even when antibiotics were not used

...ds under four different conditions: 1.) commercial flocks that had been given antibiotics; 2.) commercial flocks that had not been given antibiotics; 3.) flocks raised in a lab that had been given antibiotics; and...

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