ScienceDaily: Top Environment News |
- It does not always need to be antibiotics: healthy pig breeding
- Many in U.S. lack knowledge about Ebola, its transmission, poll finds
- Mouse model for epilepsy, Alzheimer's gives window into working brain
- Salmon forced to 'sprint' less likely to survive migration
| It does not always need to be antibiotics: healthy pig breeding Posted: 23 Aug 2014 06:43 AM PDT The application of antibiotics can be reduced in pig breeding by using antimicrobial peptides, researchers have found. Researchers investigated the application of antimicrobial peptides (AMP) as substitutes for antibiotics in liquid sperm preservation. They were able to show that AMPs fight bacteria effectively in test tubes, and also that two of the investigated AMPs suppressed bacterial growth in liquid preserved semen preparations if combined with a small amount of the antibiotic "gentamicin." The sperm quality was not impeded by this addition.       |
| Many in U.S. lack knowledge about Ebola, its transmission, poll finds Posted: 22 Aug 2014 06:42 AM PDT Although the Centers for Disease and Prevention reports no known cases of Ebola transmission in the U.S., a poll shows that four in 10 adults in the U.S. are concerned that there will be a large outbreak in the country, and one-quarter are concerned that they or someone in their immediate family may get sick with Ebola over the next year.  |
| Mouse model for epilepsy, Alzheimer's gives window into working brain Posted: 21 Aug 2014 09:48 AM PDT A genetically engineered line of mice has been developed that is expected to open the door to new research on epilepsy, Alzheimer's and other diseases. The mice carry a protein marker, which changes in degree of fluorescence in response to different calcium levels. This will allow many cell types, including cells called astrocytes and microglia, to be studied in a new way.  |
| Salmon forced to 'sprint' less likely to survive migration Posted: 20 Aug 2014 03:39 PM PDT When salmon encounter turbulent, fast-moving water-such as rapids or areas downstream of dams -- they must move upstream using a behavior known as "burst swimming" that is similar to sprinting for humans. New research suggests that sockeye salmon that sprint to spawning grounds through fast-moving waters may be at risk.  |
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