Tag: feed

A New Approach to Dairy Farming

  • At Hawthorne Valley Farm, calves are raised with their mothers - unlike other dairy farms (Photo by Kinna Ohman)

Some cutting edge farmers are stepping
away from concentrating on only production of
meat and milk on their farms. They’re starting
to focus on ways to give their animals healthy,
long lives. And they’re finding more benefits
than they ever imagined. Kinna Ohman reports:

Transcript

Some cutting edge farmers are stepping
away from concentrating on only production of
meat and milk on their farms. They’re starting
to focus on ways to give their animals healthy,
long lives. And they’re finding more benefits
than they ever imagined. Kinna Ohman reports:

The idea of dairy cows grazing out in a pasture is rare – even though advertisers use this
scene all the time to sell us cheese and milk.

The reality is, most dairy cows spend their lives inside big sheds. They’re pushed to produce a lot of milk. And
they often die a premature death.

(cows mooing)

So there’s something relaxing about a farm like Hawthorne Valley. Maybe it’s just
knowing places like these still exist.

The farm’s surrounded by the rolling hills of New York’s Hudson Valley. There’s a big
red barn. Cows graze out in green pastures. And this year? You’ll even see some little
calves hanging out with their mothers.

Steffen Schneider’s grinning because of those little calves. He’s the dairy farm manager
at Hawthorne Valley. He’s standing at a pasture fence. And he can’t take his eyes off the scene
in front of him.

“It’s a great sight to see a little herd of calves galloping like little kids right through
the herd and the mother looking, being very proud of their ones. This mother right
here we’re looking at Patricia, she has her eye exactly on her own baby there,
Pepper, he’s one of those guys lying right there. Yeah, it’s wonderful.”

Schneider started letting his cows bring up their calves around a year ago. But that’s
really rare in the dairy industry.

At most farms, they take calves away from their mothers within a day of being born.
That’s because farmers want to keep their cows in milk production. They don’t want to waste that
milk on the calves. That push for high milk production does take a toll on dairy cows.

Kent Anderson’s a veterinarian who works on these types of farms. He says he
understand the business needs of farmers. But he says its difficult seeing cows pushed so
hard.

“But one thing that distresses me a bit is that a normal bovine should have five, ten,
twelve, productive years. But as agriculture changes, the average dairy cow makes it
two and a half lactations, which means, she’s not even 5 years old, and she’s gone.”

Many farmers think that’s the best way to run their dairy farms.

But Steffen Schneider says he wants to balance business with the natural needs of his
animals. And letting his cows raise their calves is just one more step. He says the cows
are less stressed. And they’re seeing some great changes in the calves.

“Within a few weeks, it was amazing to watch how healthy those calves were, how
quickly they grew. They were like different animals than we were used to seeing in
our pens. And so much more awake in their senses, so much stronger limbs. Just
much more vibrant animals.”

Schneider wonders how these improvements will help the calves as they become adults.
And even how it could help the quality of their milk. But more than anything else, he just
seems amazed it took him twenty five years to take this step.

“It’s really crazy that through just greed we don’t just expose those calves to their
mothers. And think we need every single last drop of milk – forgetting the only
reason the milk even comes in is because the cow gives birth. I’m really very happy
I finally, we finally, did it.”

Only a small group of dairy farmers are letting their cows bring up their young. But they hope to show other farmers and consumers there is a way to combine business with a more natural life for their animals.

For The Environment Report, I’m Kinna Ohman.

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Grand Bridge Scaled Back for Birds

  • A tern chick at Mille Lacs Wildlife Refuge in Minnesota (Photo courtesy of the US Fish and Wildlife Service)

There are few things as aggravating as getting stuck in a traffic jam. But for some drivers crossing a busy bridge from the U.S. to Canada there’s aggravation on top of aggravation. Joyce Kryszak reports that’s because a plan to build an additional bridge is being blocked by concern for a bird and a little fish that it eats:

Transcript

There are few things as aggravating as getting stuck in a traffic jam. But for some drivers crossing a busy bridge from the U.S. to Canada there’s aggravation on top of aggravation. Joyce Kryszak reports that’s because a plan to build an additional bridge is being blocked by concern for a bird and a little fish that it eats.

Every year, millions of people cross the mighty Niagara River on the Peace Bridge that connects Buffalo, New York to Canada. And many of them sit for hours in a traffic jam. The border crossing and passport checks slow things down. But there are just not enough lanes for all the traffic.

Ice delivery man Tim Holliday is one of those who is fed up with hours and hours of bridge delays.

“Like, I gotta go to the duty-free here, and when I’m coming out of here I have to go through customs and they always ask, what were you doing in Canada?” said Holliday. “I’m just sick of the hassles, you know?”

Transportation officials say a new bridge is needed. The traffic problems will only get worse. Because of increased trade, about eleven million additional travelers are expected to be using the Peace Bridge over the next decade.

And that’s a headache for Ron Rienas. He manages the busy international bridge crossing. He says building a new bridge would help with the traffic delays and help with national security.

“This is a border improvement project designed to address redundancy issues, security issues, traffic flow, all of those things, maintenance issues…all of those are impacted by not being able to proceed with the project,” said Rienas.

A second bridge has been designed. It’s a cable-stayed bridge with towers as high as the Washington monument.

Brian Higgins is Congressman for the area. He’s pushing for federal approval of the impressive cable design. He says the region needs an iconic symbol of progress.

“We are in the eleventh hour of a project that’s been going on for fifteen years. We need additional capacity at the Peace Bridge to promote the efficient, predictable flow of commerce between the United States and Canada – we need an iconic bridge, a signature bridge,” said Higgins.

But that signature bridge is exactly the kind of design that is dangerous to many birds.

And the Niagara River is a virtual highway for nearly three hundred kinds of birds. The cables can be invisible to the birds and they can fly into them and die.

Among those birds is the Common Tern. It’s an endgangered species.

Terry Yonker knows these and other birds better than most.

“We probably documented somewhere in the range of half a million birds, and there’s a common tern right there.”

Yonker is a scientist and a former Ornithological Society president. He wrote an environmental study that recommended against the bridge’s cable design because it could kill hundreds of different kinds of birds, including the endangered tern.

Yonker says even if it avoided hitting the cables by flying over the bridge, the tern would be stressed by such a tall bridge design. That’s because it has to make eight trips over the bridge each day to feed its young. But he says it probably wouldn’t make that many trips if the new bridge is any higher than the Peace Bridge.

“You raise that structure and they’ll have to spend a lot of energy doing that. They’ll maybe make five or six trips a day and that means one or two chicks are going to get less food out there,” said Yonker.

The other concern is a food source for the tern.

Fishery experts say the enormous piers would change water currents, eventually killing off the Emerald Shiner. That’s the tiny fish the endangered bird feeds on.

So a new design is being recommended: A lower bridge with smaller piers to protect the tern and the emerald shiner.

Federal and state agencies are working to find a way to mitigate the threat to the birds and fish by altering the plans for the new bridge. But environmental experts say you can’t mitigate extinction.

Environmentalists and some biologists say the common tern is more than an endangered bird. They say it’s a warning, about what happens when sound science is ignored for the sake of progress.

But, try explaining that to the people stuck in traffic for hours because a second bridge is being blocked to save a small bird and a little fish.

For The Environment Report, I’m Joyce Kryszak.

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Dog Doo a Delicacy for Rats

Nature is a big buffet table. One thing eats another – that eats another –
and so on. That’s a fundamental concept of ecology called the food chain.
One city is giving everyone a lesson about a dog’s place in the food chain.
And as Shawn Allee explains, it’s a lesson some would rather not hear:

Transcript

Nature is a big buffet table. One thing eats another – that eats
another – and so on. That’s a fundamental concept of ecology called
the food chain. One city is giving everyone a lesson about a dog’s place
in the food chain. And as Shawn Allee explains, it’s a lesson some would
rather not hear.


Katherine Raz takes up the leash of a slow-moving, black dog. But she’s not
walking her dog through snow. Raz is a professional dog walker.


Allee: “This is one quiet dog.”


“Oh yeah, she’s pretty mellow. Velvet. Velvet. See, she doesn’t even respond
when I call her.”


Velvet is in no hurry to walk, but Raz has got to hustle. She walks dozens of
dogs each week. And business is growing.


“Since I’ve been up here, we’ve had to hire three other people to cover all the
people who’ve called for walks.”


Some residents say all the new dogs are making a big mess. Velvet stops to
prove the point.


“I’ll use the produce bags to capture this. This is a fine specimen here. As
far as picking up the feces, I always thought it was just a cosmetic thing.”


But a sign informed her otherwise.


“I was walking a dog late at night and I was actually stopping to read the sign
because I was so bored. And it’s like, please, pick up the dog droppings because
rats use them as a primary source of food. I was like, Oh, God that’s horrible.
That just gives an image that’s not pretty.”


Indeed, Chicago’s putting dog owners on notice. The city put up that sign
Raz found. It came from the Chicago’s Department of Streets and Sanitation.


Fliers at City Hall say the same thing.


I read one of those fliers to Jose Cruz, Chicago’s rat control Czar.


“They prefer fresh food but will eat many things, such as pet food, dog
droppings, quote – a rat favorite.”


Allee: How do we know that’s the case, that dog droppings are a rat favorite?


“Because we’ve actually come across locations that we don’t see that there’s
not a huge problem with people not containing their garbage.”


The problem is that people are not picking up after their dogs.


Allee: And if I live in a neighborhood where people aren’t picking up after their dogs?
Am I in trouble for a rat problem in the future?


“No, you’re not. Just because there’re lots of dogs, doesn’t mean you’re going to
have a rodent problem.”


Cruz says it all turns on whether people actually clean up. But will enough dog
owners really do that?


Katherine Raz isn’t sure.


“See, there’s a dropping someone didn’t pick up.”


Allee: How often do you see that?


“Oh, all the time.”


Maybe the owners don’t read the signs. Or…maybe they just don’t buy the
dog – feces – rat connection.


I don’t either.


So, one night I meet up with an urban ecologist. Joel Brown is with the
University of Illinois at Chicago university.


Allee: Where are we?


“Right now we’re on the grounds of the UIC greenhouse. It’s a small green patch
that’s bordered by the Kennedy, a large parking garage, and one of the science and
engineering buildings.”


But it’s enough space to let nature run its course. Brown points to a darkened
patch of weeds and trees. He swears I just missed a rabbit.


“You can hear a cottontail running right through the underbrush right here.”


There’s more to observe, though. A falcon dines on pigeons that land here.
Dogs eat the rabbits. And there’s a raccoon that snatches food from the student
parking lot.


Brown says all of these have found a niche in Chicago.


“So what you see is a very dynamic process. Nature is not an art gallery; it works
around us and works in response to us.”


But could rats really take advantage of that neighborhood’s growing dog population?


Brown says, maybe. But perhaps not in the way the city claims.


“It is more likely that a single French fry, or a dog biscuit, pet food left
outside, a
sandwich left on a park bench … all of the incidental bits of food that we leave
behind
without even thinking about it. Those are much more likely to be feeding and breeding
the rat population than dog poop.”


He says it’s a minor link, but the city makes a good point nonetheless.


“That’s the part that, to me, is exciting. The fact that they’re even thinking about
these connections, shows they’re thinking smart.”


Ultimately, signs with dire warnings can’t control dogs’ impact on the neighborhood.
Brown says the behavior that matters most comes from a peculiar animal.


That’s the one that walks on two legs, has a big brain, and can recognize its own
connections to
the natural world.


For the Environment Report, I’m Shawn Allee.

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Barnyard Animal Extinctions

  • Milking Devon cattle are rare domestic breeds from an earlier day, some dating back to the 18th century. The animals hold genetic information that some people think is too valuable to lose. (Photo by Lester Graham)

When you think of endangered species, farm animals might not top the list. But some types of farm animals are in danger of going extinct.
Certain breeds of common barnyard creatures are no longer considered commercially viable, and are being allowed to die off. But as the GLRC’s Chris Lehman reports, there’s an effort to preserve some rare varieties of
livestock:

Transcript

When you think of endangered species, farm animals might not top the list. But some
types of farm animals are in danger of going extinct. Certain breeds of common barnyard
creatures are no longer considered commercially viable, and are being allowed to die off.
But as the GLRC’s Chris Lehman reports, there’s an effort to preserve some rare varieties
of livestock:


When you buy a pound of ground beef or a pack of chicken legs, you probably don’t
think about what kind of cow or chicken the meat came from. And in most stores,
you don’t have a choice. Beef is beef and chicken is chicken.


Of course, there’s many different kinds of cows and chickens, but most farmers stick with
just a handful of types. They prefer animals that are specially bred to produce more meat
in less time.


That’s all well and good if your motive is profit.


But some people think the move towards designer farm animals is risky.
Jerome Johnson is executive director of Garfield Farm Museum.


(Sound of turkeys gobbling)


Johnson says breeds like these Narragansett turkeys carry genetic traits that could be
desirable in the future. They don’t require as much food, for instance. That could be an
attractive feature as costs continue to rise:


“Some of the high-producing, high-yielding animals today, they may require a lot of
input. In other words, a lot of feed, more expense since so many things are derived from
petroleum, from the diesel fuel that powers the tractors to the production of fertilizer
and the like, and chemicals for herbicides and all… that as the cost of that goes up, it may
actually be cheaper to raise a different type of animal, that doesn’t require that much.”


Johnson also says some common poultry breeds get sick more easily. That’s part of the
risk farmers take when they choose meatier birds. Normally that might not be a problem,
but if Avian flu spreads to the US, some of the older breeds might carry genes that could
resist the disease. If those breeds disappear, that genetic information would be lost.


But some farmers choose rare livestock breeds for completely different reasons.


(Sound of baby chicks)


Scott Lehr and his family raise several varieties of pure-bred poultry, sheep, and goats on
their northern Illinois farm. These chicks are just a few weeks old…


(Sound of baby chicks)


“These are all pure-bred birds. These are birds that have been around a long time. Some
of the breeds that are in there, there’s Bantam Brown Leghorns, Bantam White Leghorns.”


Some of the poultry breeds are so rare and exotic they’re practically collector’s items.
Lehr’s son enters them in competitions. But the animals on their farm aren’t just for
showing off. Scott says they use the wool from their herd of Border Cheviot sheep for a
craft studio they opened in a nearby town:


“There’s quite a bit of demand growing for handspun wool and the rising interest in the
hand arts, if you will… knitting and spinning and weaving and those kinds of things… are
really beginning to come into, I guess, the consciousness of the American public in many
ways. It’s evolving beyond a cottage industry.”


And the wool of rare breeds like the Border Cheviot sheep is popular among people who want handspun wool.


(Sound of Johnson calling to giant pig, “Hey, buddy, how ya doin’?”)


Back at the Garfield Farm Museum, Jerome Johnson offers a handful of grass to a 700
pound Berkshire hog. This Berkshire is different from the variety of pig with the same
name that’s relatively common today. Johnson says these old-style Berkshires have a
different nose and more white hair than the modern Berkshire. They also tend to be fatter,
which used to be a more desirable trait.


The museum’s pair of old-style Berkshires are literally a dying breed. Johnson says the
boar isn’t fertile anymore:


“They were the last breeding pair that we knew of. These were once quite common but
now are quite rare. And we maybe have found a boar that is fertile that is up in
Wisconsin that was brought in from England here a couple years ago that we could try
crossing with our sow to see if we can preserve some of these genetics.”


(Sound of pigs)


Advocates of rare livestock breeds say the animals can be healthier and sometimes tastier
than the kinds raised on large commercial farms. And although you won’t find many
farm animals on the endangered species list, they could have important benefits for future
farmers.


For the GLRC, I’m Chris Lehman.

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Ten Threats: Wetlands – Where Life Begins

  • Great Lakes coastal wetlands filter water, give lots of wildlife a place to live and help prevent erosion. These wetlands are also greatly responsible for feeding the fish of the Great Lakes. (Photo by Lester Graham)

The Ten Threats to the Great Lakes were identified for us by experts from all over the region.
Again and again they stressed that the shores and wetlands along the lakes were critical to the
well-being of the lakes and the life in them. Great Lakes coastal wetlands filter water, give lots of
wildlife a place to live and help prevent erosion. But the coastal wetlands are also greatly
responsible for feeding the fish of the Great Lakes. Biologists are finding that when people try to
get rid of the wetlands between them and their view of the lake, it hurts the fish populations.
Reporter Chris McCarus takes us to where life begins in the lakes:

Transcript

We’ve been bringing you the series, Ten Threats to the Great Lakes. One of the
keys to the health of the lakes is the connection between the lakes and the land.
The Great Lakes Radio Consortium’s Lester Graham is our guide through the series:


The Ten Threats to the Great Lakes were identified for us by experts from all over the region.
Again and again they stressed that the shores and wetlands along the lakes were critical to the
well-being of the lakes and the life in them. Great Lakes coastal wetlands filter water, give lots of
wildlife a place to live and help prevent erosion. But the coastal wetlands are also greatly
responsible for feeding the fish of the Great Lakes. Biologists are finding that when people try to
get rid of the wetlands between them and their view of the lake, it hurts the fish populations.
Reporter Chris McCarus takes us to where life begins in the lakes:


(sound of walking in water)


About a dozen researchers have come to Saginaw Bay off of Lake Huron. They walk from the
front yard of a cottage into some tall grass and black mud out back. The coastal wetland is wide
here.


Don Uzarski is a professor from Grand Valley State University. He wants to see just how many
different kinds of microorganisms live in this wetland. He asks a colleague to dip a fine mesh net
into the muck.


“Why don’t you give us your best scoop there…”


The net’s contents are poured into a tray. The water and muck is pushed aside and tiny animals
are revealed. None of them is any bigger than an inch.


“There are a lot organisms right there. That’s a lot of fish food. Lot of water boatmen. We have
scuds swimming through here. We have snails. Probably a bloodworm. I don’t see it. But the
red thing.”


Uzarski says this is a healthy patch of wetland. It’s where Great Lakes life begins.


“The whole community starts here. And we’re talking about everything from the birds and fish
and all the things that people tend to care about more. But without this stuff we don’t have
anything.”


These microorganisms are at the bottom of the food chain. Lake trout, walleye and salmon are at
the top. But this natural order has been disturbed by humans. Only parts of the wetland are able
to work as nature intended. The bugs, snails and worms are supposed to be everywhere here. But
Uzarski says they’re not.


“Look at if we take 20 steps over there we’re not going to find the same thing. It’s gonna be
gone. And where’s that coming from? It’s coming from these disturbed edges. Which were
disturbed by? It was the spoils from dredging out that ditch right there.”


The dredging material is piled along the edge… a bit like a dike. Uzarski says that’s one of the
three main threats to coastal wetlands.


The dikes stop the natural flow of water. Farm and lawn fertilizers, sediment and chemical
pollution are not filtered out when they run off the land. Dikes also stop the water from carrying
food for fish out into the lake… and in the other direction, water can’t bring oxygen from the lake
into the wetlands. They’re at risk of becoming stagnant pools.


A second threat to the wetlands is alien invasive plants. Ornamental plants intended for gardens
have escaped. Phragmites, purple loosestrife, and European water milfoil among others all choke
out the native plants that help make the wetland systems work.


But… the greatest threat to the coastal wetlands is construction. We’ve been building homes,
buildings and parking lots right over the top of some of the Great Lakes’ most critical wetlands.


Sam Washington is Executive Director of the Michigan United Conservation Clubs, the state’s
largest hunting and fishing advocacy group. He says we need healthy wetlands if we want to
keep fishing the Great Lakes.


“If we didn’t have wetlands, if we didn’t have the ability to regenerate the bottom foods in the
food cycle of these animals, we wouldn’t have the big fish that people go out in the Great Lakes
to catch everyday. They just wouldn’t be there.”


Washington says the way to fix the problem is easy… but it will require us to do something that
comes really hard…


“The best thing human beings can do for wetlands, even though we really believe we know how
to fix everything, is just to leave ’em alone.”


Sam Washington gets support from the biologists who tromp out into the wetlands. They say
we’ve got to protect the whole food chain… so we should leave wetlands alone and just let nature
do its job.


For the GLRC, I’m Chris McCarus.

Related Links

RECONNECTING FARMERS TO LOCAL MARKETS (Part 2)

  • Many of the crops being grown in the U.S. don't end up in the produce aisle. In fact, they usually aren't even sold to people in neighboring areas. (Photo by Rene Cerney)

Some experts think farmers could do a lot better for themselves if they changed what they’re growing. They say growing corn and soybeans subsidized by the government doesn’t do much for the farmer and almost nothing for the local economy. The Great Lakes Radio Consortium’s Julie Grant reports on efforts to change that:

Transcript

Some experts think farmers could do a lot better for themselves if they changed what they’re growing. They say growing corn and soybeans that are subsidized by the government doesn’t do much for the farmer and almost nothing for the local economy. The Great Lakes Radio Consortium’s Julie Grant reports on efforts to change that:


It can be hard to find locally-grown broccoli, milk, or beef in most grocery stores, even in the middle of farm country. In some states, ninety percent of the land is farmed, but ninety-eight percent of food people eat is shipped in from other parts of the nation or other countries.


The local farmers are growing commodities: corn and soybeans harvested for cattle-feed or processed foods, not stuff that winds up in the produce aisle. But ag economist Ken Meter wants to see that change.


“Farmers have doubled their productivity since 1969, and yet, they’re not making more money, they’re actually losing more money after doubling productivity.”


Meter has studied the economics of farm communities. In one area, he found that nearly all of the farm fields there were used to grow corn and soybeans for the commodities market, but farmers were losing money. At the same time, nearly all of the food people bought there was shipped in from other places.


“The economy we’re in right now is extremely efficient at taking any money that you or I earn in our neighborhood or in our daily lives and basically pulling it into a big global network that very efficiently takes that money and helps other people elsewhere make some value from it.”


It hasn’t always been this way. Richard Pirog is food systems researcher at the Leopold Center for Sustainable Agriculture in Iowa. Eighty years ago, he says, most farms grew a lot of different
products and processed them to be sold locally or within the region.


“Iowa back in the 1920’s had fifty-four canneries. We were the canned sweet corn capital of the world in the mid-1920’s. Fast forward to today, there isn’t a single cannery in Iowa. So that infrastructure is gone.”


Pirog says you could tell similar stories in farm areas across the U.S. Back during World War Two, the federal government encouraged farmers to grow commodities, such as corn and soybeans. The government starting paying them subsidies to grow those crops.


These days, Pirog says a lot of farmers wouldn’t even think about risking those subsidies to grow something besides corn and soybeans. Economist Ken Meter says that might be a mistake. He says many farmers don’t realize there’s a growing market for local ag products.


“All of us get focused on whatever we’re paying attention to, and as a farmer you get focused on producing quite well. I’ve spoken with farmers who’ve told me that they really didn’t have any clue that that their neighbors would be looking for different foods, because they just haven’t heard of the tremendous increase in demand we’ve had for things like organic milk or higher quality meats or fresher produce.”


There has been an organic explosion of local farm markets in recent years, because customers want to buy fruit, vegetables, milk, and meat directly from the farmers who produce them. But government policy and farm subsidies mainly still support the commodity production of corn and soybeans.


Richard Pirog hopes that changes, but it’s unclear if growing produce for the new local markets is always economically viable. No one has studied the phenomenon.


“It has to make economic sense for a community and a region. We believe it will, which is why it’s spread so rapidly. But it’s sort of like, the real numbers, the quantification hasn’t caught up with all the growth and explosion and the interest.”


Pirog says he’d like to push the process along. He says it would make more sense for the government to shift subsidies from corn and soybean production to the farms that produce food for their local communities.


For the GLRC, I’m Julie Grant.

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Alewife Die-Off Sparks Worries for Salmon

  • Because alewives make up a large portion of salmon diets, alewife die-offs are causing concerns that salmon populations might also decline. (Photo courtesy of the Fish and Wildlife Service)

A small fish is dying off in parts of the Great Lakes. According to the U.S. Geological Survey, the amount of alewives in Lake Michigan dropped nearly 70 percent last year. And biologists say the decrease might signal trouble for the salmon fishery. The Great Lakes Radio Consortium’s Peter Payette reports:

Transcript

A small fish is dying off in parts of the Great Lakes. According to the U-S
Geological Survey, the amount of alewives in Lake Michigan dropped nearly 70
percent last year. And biologists say the decrease might signal trouble for
the salmon fishery. The Great Lakes Radio Consortium’s Peter Payette
Reports:


Lake Michigan’s alewife population has been lower than it is now a few times
in the last 20 years. But Lake Huron’s alewife population is practically zero.


That’s why salmon in Huron are small and many are coming over to Lake
Michigan to feed.


USGS Biologist Charles Madenjian says the problem is stocked salmon are now
reproducing naturally.


And the growing numbers of salmon are eating up all the alewives.


“People fear that if alewives stay at this low level, the salmon are more
prone to disease and you’ll get a die-off.”


Neither salmon nor alewives are native to the Great Lakes.


Alewives swam in from the Atlantic Ocean through the Welland Canal. Salmon were introduced in part to control the alewife population.


For the GLRC, I’m Peter Payette in Traverse City.

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HIGHER PCBs IN FARMED SALMON

Researchers with an environmental group have found that farm-raised salmon are contaminated with higher levels of PCBs than wild salmon. The Great Lakes Radio Consortium’s Lester Graham reports:

Transcript

Researchers with an environmental group have found that farm-raised salmon are contaminated with higher levels of PCBs than wild salmon. The Great Lakes Radio Consortium’s Lester Graham reports:


The Environmental Working Group
tested salmon from grocery stores for
PCBs. It found that average levels of
PCBs in farm-raised salmon were
five times higher than in wild salmon.


Ken Cook is the President of the
Environmental Working Group. He
says PCB contamination is serious.


“It’s got a cancer risk associated with
it. It can also cause developmental
problems in children,
so we’re concerned that we have
the farm salmon cleaned up,
get rid of some of these PCBs. And
it won’t be too hard to do.”


Cook says the higher PCB levels
come from the feed for the salmon.
It’s ground up and concentrated fish.
Concentrating the fish concentrates
PCBs, giving farm-raised salmon
higher exposures. The farm salmon
industry indicates that levels are well
within the standards set by the Food
and Drug Administration, but the
PCB levels in the farm-raised salmon
do surpass the stricter guidelines set
by the Environmental Protection
Agency.


For the Great Lakes Radio Consortium, this is
Lester Graham.

Related Links

New Feed Reduces Toxins in Manure

Large-scale livestock operations face a big challenge: how to
handle all the manure the animals produce. Manure spills and runoff can
contaminate water with nitrogen and phosphorous. The result can be
polluted drinking water, or fish kills in streams and lakes. But now,
Purdue University researchers have found a way to significantly lower
the
pollutants in hog manure. The Great Lakes Radio Consortium’s Wendy
Nelson reports: