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pepa garcía

How Using Antibiotics In Animal Feed Creates Superbugs : The Salt : NPR - 0 views

www.npr.org/...-animal-feed-creates-superbugs

bacterias cerdos ganadería antibióticos

shared by pepa garcía on 21 Feb 12 - No Cached
  • antibiotics in livestock feed give rise to antibiotic-resistant germs that can threaten humans.
  • an antibiotic-susceptible staph germ passed from humans into pigs
  • it became resistant to the antibiotics tetracycline and methicillin
  • ...13 more annotations...
  • And then the antibiotic-resistant staph learned to jump back into humans.
  • "It's like watching the birth of a superbu
  • whole-genome analysis on a staph strain called CC398 and 88 closely related variations.
  • emerged within the past decade in pigs and has since spread widely in cattle and poultry as well as pigs.
  • the animal bacterium jumped back into humans with close exposure to livestock.
  • This "pig MRSA" has been detected in nearly half of all meat sampled in U.S. commerce
  • we think it may be changing gears, so to speak, and gaining the capacity to be passed from person to person.
  • Price says the new data provide an early warning of what might become a major public health problem.
  • in some areas of the Netherlands, it's causing as many as 1 in 4 human MRSA cases
  • "our inappropriate use of antibiotics ... is now coming back to haunt us."
  • the solution is clear — banning antibiotics in livestock feed, as the European Union has done.
  • Most antibiotics sold in the U.S. go to animals, mostly in their feed, where they act as a growth promoter and damp down infection outbreaks in large feedlots.
  • It said it would focus instead on "voluntary reform" by the meat industry to limit use.
pepa garcía

La Ganadería - 0 views

www.patrimoniochileno.net/index.php

ganadería chile leeche

shared by pepa garcía on 18 Jun 12 - No Cached
  • Una parte del ganado se hizo cimarrón (animal domesticado que huye y se hace salvaje)
  • Los mayores porcentajes de praderas sobre la superficie total regional los tienen las regiones de Coquimbo y de Magallanes, pero las de mayor rendimiento son las de la región central
  • A principios del siglo XXI la mitad de la producción cárnica procede de las aves, alrededor de un tercio de los bovinos y una cuarta parte del porcino.
  • ...5 more annotations...
  • En Chile no suele practicarse la ganadería en establos, excepto para el ganado menor: cerdos, aves de corral y conejos;
  • La ganadería chilena se ubicó principalmente en el Valle Central, donde los ganaderos constituían la aristocracia de la tierra.
  • El sistema de doble propósito es el más utilizado y constituye cerca del 60 por ciento de la ganadería bovina del país
  • La producción de leche, el principal objetivo ganadero, se concentra en las praderas artificiales regadas en torno a las grandes aglomeraciones urbanas: Valparaíso y, sobre todo, Santiago
  • El ganado utilizado principalmente es el Holstein americano, que produce leche durante todo el año con promedios de hasta 5.000 litros por animal por año.
pepa garcía

Enviropig - Commercialization & Regulatory | University of Guelph - 0 views

www.uoguelph.ca/enviropig

cerdos manipulación_genética

shared by pepa garcía on 21 Feb 10 - Cached
  • pepa garcía on 21 Feb 10
     
    The Enviropig™ is a genetically enhanced line of Yorkshire pigs with the capability of digesting plant phosphorus more efficiently than conventional Yorkshire pigs. These pigs produce the enzyme phytase in the salivary glands that is secreted in the saliva. When cereal grains are consumed, the phytase mixes with the feed as the pig chews. Once the food is swallowed, the phytase enzyme is active in the acidic environment of the stomach, degrading indigestible phytate in the feed that accounts for 50 to 75% of the grain phosphorus.
pepa garcía

YouTube - The Beatles - Piggies - 0 views

www.youtube.com/watch

cerdos beatles piggies

shared by pepa garcía on 21 Feb 11 - No Cached
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