[MCN] Chickens' past, present -- and future?
Lance Olsen
lance at wildrockies.org
Fri Feb 19 09:57:53 EST 2016
Financial Times February 19, 2016 10:57 am
Are these the chickens of the future?
Disease-resistant and sustained by low-cost feed,
genetically modified poultry could one day be the
answer to soaring global demand for meat
Anjana Ahuja
http://www.ft.com/intl/cms/s/2/863e034e-d5c8-11e5-829b-8564e7528e54.html
Excerpt
Today's commercially bred chickens look far
bulkier than did their puny forebears from a
century ago - and vastly different to red
junglefowl, the wild bird from which they are
thought to be descended. After the second world
war, consumers craved cheap protein. Breeders
selected birds for meatiness without always
getting, or preserving, the genes for
correspondingly strong bones. Today, there are
too many broilers (chickens bred for meat)
propped up by brittle skeletons and serviced by
overworked hearts. The animal welfare charity
Peta says the average breast of an eight-week-old
chicken is seven times heavier than it was 25
years ago.
"I don't think people understand how successful
poultry-breeding genetics has been in changing
the characteristics of chickens since the second
world war," says Sang. "But those initial goals
were not particularly good for the welfare of the
animal."
All those changes were wrought by selective
breeding, which means basically picking out
animals with the desired characteristics and
mating them. Now companies such as Aviagen,
Hy-Line and Cobb-Vantress - which sell
trademarked pedigree breeds (such as Aviagen's
Ross 308) that are used to produce millions of
supermarket birds - have realised that science
can replace pedigree information with genome
information. According to the British Poultry
Council, selective breeding programmes can
already target 40 characteristics that fall under
genetic influence, from bone health and the
oxygen-carrying capacity of blood (a proxy for
heart health) to food efficiency and growth rate.
Full story here:
http://www.ft.com/intl/cms/s/2/863e034e-d5c8-11e5-829b-8564e7528e54.html
--
===========================================================
"The effects of climate change will be 'severe,
pervasive and irreversible' within the next few
decades if countries burn more than just
one-quarter of the fossil fuel reserves already
found, according to a major new U.N. draft report"
"It warns that companies and governments have
'identified reserves of these [fossil] fuels at
least four times larger than could safely be
burned if global warming is to be kept to a
tolerable level.' In short, 75 percent of the
fossil fuels must remain in the ground to
forestall devastating impacts."
http://www.newsweek.com/leaked-un-report-climate-change-impacts-already-inevitable-may-soon-be-irreversible-266860
===============================================================
"I believe humanity is making risky bets in the
climate casino. . But it is always possible
that humanity will wake up .... If that happened,
fossil fuel reserves would indeed be stranded.
Investors beware: the risk of that cannot be
zero."
Martin Wolf. A climate fix would ruin investors.
Financial Times. June 17, 2014
http://www.ft.com/intl/cms/s/0/5a2356a4-f58e-11e3-afd3-00144feabdc0.html#axzz3C5hyxJyx
Bold emphases added
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