Chicken Feces in Cattle Feed

  • Author David Kirby says cattle eating cattle by-product could risk another outbreak of mad cow disease. The FDA says there’s no measurable risk. (Photo courtesy of the USDA)

The hamburger you put on the grill this weekend could be from cattle raised on feed that includes chicken feces. Lester Graham reports…a year-old Food and Drug Administration rule says it’s safe:

Transcript

The hamburger you put on the grill this weekend could be from cattle raised on feed that includes chicken feces. Lester Graham reports…a year-old Food and Drug Administration rule says it’s safe.

The rule came about after the mad cow disease outbreak. It made some changes, but still allows putting chicken litter – that’s the straw, feathers, chicken manure and scattered food left after raising chickens in a building– into cattle feed.

David Kirby wrote a book entitled “Animal Factory.” He says the government buckled to the chicken industry because the industry didn’t have a place to go with all the chicken litter.

“There’s too much to spread on local farmland, so they very often put it into cattle feed. It contains urea which cows can convert into protein.”

Chickens are messy. They scatter their feed and it gets into the chicken litter that’s put in some cattle feed. Some chicken feed contains beef by-products. Kirby says cattle eating cattle by-product could risk another outbreak of mad cow disease. The FDA says there’s no measurable risk.

For The Environment Report, I’m Lester Graham.

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The “Enviropig” Cuts Pollution

  • Researcher Cecil Forsberg created the first Enviropigs in 1999. Their meat may soon be available at American supermarkets. (Photo by Julie Grant)

At factory farms, cows and
pigs produce a lot of manure, and
that sometimes causes a lot of
pollution. Julie Grant reports that
one scientist says he’s got a solution:
genetically modify pigs so they produce
less pollution. But to be successful,
people have to be willing to eat
genetically modified meat:

Transcript

At factory farms, cows and
pigs produce a lot of manure, and
that sometimes causes a lot of
pollution. Julie Grant reports that
one scientist says he’s got a solution:
genetically modify pigs so they produce
less pollution. But to be successful,
people have to be willing to eat
genetically modified meat:

Murray Borrello says pig and cow poop is killing everything
in some of the water he studies. He’s a geologist and has
been researching water pollution with chemists and
biologists at Alma College in Michigan. Borrello says there’s
no fish in parts of the river – because of all the animal feces
running off of nearby farms.

“It’s very obvious. It’s this kind of brown, mucky,
murky looking substance.”

That poop is full of phosphorous, nitrogen, and other things
that cause pollution problems. It creates algae that clogs up
waterways and sucks out all the oxygen.

Borrello says some of the farms house more than
10,000 hogs. Farmers sometimes hold 20 million gallons of
pig manure in lagoons. They liquefy it and spray it on the
fields for fertilizer. But Borrello says it’s too much manure,
so it runs off the land and into the waterways.

In some places, it’s the same water is used for drinking
water. And the same rivers drain into the Great Lakes.

On the northern side of the Lakes, a Canadian scientist says
he’s found a possible solution to this pig pollution problem.

(sound of a pig barn)

It’s called the Enviropig.

Cecil Forsberg has genetically modified pigs so they produce
less pollution in their waste.

I met him at his research barn at the University of Guelph in
Ontario.

There are no windows – just a ventilation system. And,
wow, it’s hard to concentrate – the smell of pig waste is so
strong.

He introduces me to a group of Enviropigs, they’re about a year and
a half old. He says they have no detectable difference from
regular pigs.

“They have four legs, two ears, a snout, and they like to dig
in the shavings.”

But while most pigs poop out a lot of polluting phosphorous,
Forsberg has made the Enviropig into a much better
machine for digesting phosphorous.

He’s no Dr. Frankenstein. But to do it, he did use DNA from
a mouse. He says it’s considered a safe technique, but he
knows it makes people cringe.

“There’s no mouse in these pigs, except for a little fragment
of DNA.”

The mouse DNA allowed Forsberg to add a bacterial gene to
the pigs. It’s that bacteria that triggers the pig’s salivary
glands to start the digestion of phosphorous.

Forsberg says the waste from these pigs does a lot less
damage to the environment than most pigs.

“There’s a reduction in the phosphorous in the manure by up
to 60%. And that’s important because phosphorous is the
component in manure that is the first one that’s problematic.”

And it’s part of what chokes the oxygen out of the waterways –
killing fish and other aquatic species. Forsberg wants to see
Enviropigs bred on the global scale to reduce pollution from
the growing number of large scale hog farms.

Back in Michigan, water specialist Murray Borrello
says reducing phosphorous pollution from giant hog farms
will benefit water quality, but he does not think a genetically
modified pig is the answer.

“The problem is that does not address the issue of all the
other stuff that is very concentrated going into surface water
and ground water.”

Stuff, such as nitrogen and ammonia.

Borrello says a better solution is to reduce the size of hog
farms, so there aren’t so many pigs concentrated in such
small spaces.

But the Enviropig is starting to get some traction.

When Forsberg and his colleagues created the first
generation of Enviropigs, nearly 10 years ago, the question
was: could they do it?

Today, seven generations of pigs later, the question is: will
people eat it?

Until recently, the US government hadn’t allowed the sale
of genetically modified meat. But, the Food and Drug
Administration recently published guidelines for it. And
some industry analysts say you could be eating pork from
animals like the Enviropig as soon as 2011.

For The Environment Report, I’m Julie Grant.

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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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Cities Take Aim at Roosting Crows

  • Crows are roosting in huge groups in cities all over the country. The USDA is trying to find ways to get them to go back to their natural habitat. (Photo by Paige Foster)

Flocks of crows are nothing new in most cities. In the fall and winter months, crows forage for food during the day and roost in city trees at night. The birds like cities because they’re safe and comfortable. The residents generally don’t like the crows, though. The Great Lakes Radio Consortium’s Skye Rohde
reports:

Transcript

Flocks of crows are nothing new in most cities. In the fall and winter months, crows forage for food during the day and roost in city trees at night. The birds like cities because they’re safe and comfortable. The residents generally don’t like the crows, though. The Great Lakes Radio Consortium’s Skye Rohde reports:


(sound of crows)


There are a lot of crows here. About 63,000 of them are in the city. The trees are thick with them. At dawn and dusk, so is the sky. Bird feces coats city sidewalks and parked cars. Amy Emedon lives in town. She’s used to the crows.


“They make a lot of noise at night, or in the morning they kind of wake you up. But other than that, they don’t really bother me that much. They’re kind of gross, because their poop’s all over the place and they’re so loud and there’s so many of them. Like sometimes you can’t even see, like, the sky. It reminds me of that movie ‘The Birds.'”


Crows have been wintering in Auburn, New York for more than 100 years. Written records from as early as 1911 describe a very large roost downtown. Auburn has the largest crow roost in the state. This winter, city officials hired the U.S. Department of Agriculture to haze the crows.


(sound of distress calls and pyrotechnics)


Hazing means the eight USDA scientists drive around town using recorded crow distress calls, pyrotechnics and laser pointers – anything that will upset the birds and drive them out. Sometimes this includes shooting the birds, but not in New York state. Richard Chipman is the New York state director of the USDA’s wildlife services project. He says the idea is to move the birds to a more “natural” habitat.


“The goal is not to just relocate these birds and cause somebody else problems. The goal is to try to relocate them to a low-impact area to improve the quality of life of folks here in the city.”


The only problem with this plan is that the crows really like being in cities. The birds are smart. They’re communal. They recognize that they’re safer downtown than out-of-town. Kevin Mcgowan is an ornithologist at Cornell University who has studied crows for 16 years. He’s heard of large crow roosts in cities across the nation, ranging from 100 birds to two million. Mcgowan says it’s usually warmer in cities. Crows like that. And they like the big trees and streetlights.


“I think the lights is a big deal. Crows are scared of things that go bump in the night because those things eat them. And that’s pretty much great horned owls, okay? Great horned owl is probably the single scariest thing to a crow, because they come in at night when crows can’t see and owls can. And owls eat a lot of crows.”


Mcgowan says crows started settling in U.S. cities in much larger numbers in the 1970s and 1980s, after a change to the Federal Migratory Bird Treaty Act.


“In – I believe it was 1972 – there was an amendment to the act that afforded crows protection for the first time. What that meant was now you couldn’t just shoot crows anytime you wanted to. You had to do it under the direction of a state hunting season, which had regulations.”


As a result, people changed their behavior. They didn’t shoot crows as much, so the crows became less scared of them and moved closer. In other words, crows have realized that cities are safer habitats than their “natural” environment. Mcgowan says he’s seen it before.


“You have a big predator that scares away the smaller predator that’s the one that really bothers you, then it behooves you to hang around the big predator. Happens all the time around people. There are lots of things that come in to be around people because they’re relatively safe there.”


Whether the USDA can break that pattern in cities like Auburn remains to be seen. Scientists have surveyed this city and harrassed the remaining crows. But they might have to return next winter to do the same thing again. And Auburn officials, like those in other crow-filled cities, might need to consider changing those things that attract crows in the first place, rather than just focusing on scaring the birds away.


For the Great Lakes Radio Consortium, this is Skye Rohde.

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Rats Scurrying to the Suburbs

  • Life in the suburbs is idyllic to some people... (Photo by Bon Searle)

Unusually heavy rains this summer are partly to blame
for rats pouring out of the sewers in droves all over the country, and the nasty vermin are relocating to some of the most pristine
neighborhoods. The Great Lakes Radio Consortium’s Joyce
Kryszak explains what caused the rat invasion and
what’s being done to evict them:

Transcript

Unusually heavy rains this summer are partly to blame for rats pouring out of the sewers
in droves all over the country. And the nasty vermin are relocating to some of the most
pristine neighborhoods. The Great Lakes Radio Consortium’s Joyce Kryszak explains what
caused the rat invasion and what’s being done to evict them:


Piercing blue autumn skies and billowing white clouds drift across the chimneys of this modest,
but perfectly manicured suburb. There aren’t even many leaves crunching under foot. Town workers
have already come and vacuumed them all away. But there’s a nasty little secret scurrying under
the porches and behind the garden sheds in this Western New York town. County Sanitation Chief
Peter Tripi takes us for a peek.


“Can you see the teeth marks here? That’s actually rat gnaw marks. And there’s the garbage bag.
And that’s what we found when we went to this property.”


Now, you might be thinking that we trudged through derelict grass and scattered debris to find
these rat clues. Nope. This is a gorgeous, manicured yard – with not a blade of grass out of
place. But Tripi says rats aren’t choosy.


“You would never think by looking side to side that there would be a rat problem in this yard.
Doesn’t matter what neighborhood you live in, or how much money you’ve got. There’s no difference.
They just like your food.”


And you’d be surprised where rats can find food. A garbage can left even briefly uncovered, a
neglected bird feeder, uhhh… dog feces… and even a compost pile.


“Absolutely. This is a rat condo. It’s a grass-clipping compost pile that basically housed rats
to go a hundred yard radius all the way around to the different houses.”


Tripi says rats had to get creative with their housing. A summer of extremely heavy rains drove
the out of the sewers and into some previously rat-free neighborhoods. And with the West Nile
virus killing off millions of birds, the rats have less competition for the food they’re finding
above ground. The consequence is a virtual rat infestation all the way from New York and Illinois
to Virginia, Michigan and L.A. In Kenmore, there have been four thousand rat complaints – nearly
double last year.


(Sound of garbage truck)


Of course, none of this is news to the garbage collectors. They see the problem up close and
personal. Twenty-year veteran Louie Tadaro says this past summer is the worst he’s ever seen.


“Across the street there’s an alleyway and there had to be like ten of them in there, And we
started chasing them with garbage cans trying to kill them, but we couldn’t. By the time we
got there they just split.”


The problem is, they don’t split for long. Vector Control Chief Tripi says now that the rats
have relocated from the sewers to upscale accommodations, they kind of like it.


“And what that means is that they want to live with us. They want to be near our garbage and
our bird feeders. The problem with that is that rats carry diseases.”


We all know about stuff like typhus and the bubonic plague. But there are emerging diseases,
such as a pet-killer called Leptospiroris. It’s killing dogs all across the country. Tripi
says they need to get rid of the rats before the disease starts spreading to humans. So, his
team is taking the rats on, one yard at a time.


Tripi and his Vector control team set rat traps, they fill bait boxes with poison, and – when
they have to – they issue citations to residents who don’t heed the town’s new “rat control rules.” Covered garbage cans only. Clear away all brush. Clean up scattered bird seed and dog feces. Slowly, the rules seem to be working.


(sound of Tripi looking into rat trap)


Still Tripi says it’s mostly educational warfare. And he says now – heading into winter – is the
best time to nip the problem. If the rats get cozy, not only will they stay, they will multiply.
Fully nourished, one adult rat can breed up to sixty baby rats a year.


“The adult rat can live on a little bit of food, but he can’t procreate unless he has a lot of
food source. And they can’t live through the winter unless they’re warm and fattened up.”


So now is the time to – quite literally – put a lid on it. Keep those garbage cans covered, unless
you want some uninvited furry guests this winter, and many, many more come spring.


For the Great Lakes Radio Consortium, I’m Joyce Kryszak.

Related Links

Managing Unwelcome Geese

Growing numbers of Canada geese are taking up residence in the Midwest instead of migrating in the spring and fall. As the Great Lakes Radio Consortium’s Annie MacDowell reports, government officials and environmental groups are coming up with creative ways to control the growing population:

Transcript

Growing numbers of Canada Geese are taking up residence in the Midwest instead of
migrating in the spring and fall. As the Great Lakes Radio Consortium’s Annie
Macdowell reports – government officials and environmental groups are coming up with
creative ways to control the growing population:


Canada geese are becoming a familiar sight on front lawns and in retention ponds across
the Midwest. Goose excrement is a nuisance to residents and bacteria in their feces can
make people sick. Vid Rapsys owns an Illinois franchise of the “Geese Police.” This
special force uses border collies to gather and frighten geese away from private property
without hurting them.


“Tell the dog to come by while it’s in the water. It’s going to swim in a clockwise motion
around the geese in the water. The geese become very unnerved when animals come in
the water after them. Especially animals that looked like they were stalking them on land
and now there’s someone after them in water.”


But Rapsys adds the Border collies don’t offer a permanent solution. Usually the birds
just fly a couple of miles away and settle in someone else’s lawn or pond. More
permanent options involve shaking goose eggs or covering them with vegetable
oil, which stops the growth of the embryo. But aside from killing geese during hunting
season, people are not allowed to harm a Canada goose. They’re protected by a law
written in the early 1900s.


For the Great Lakes Radio Consortium, I’m Annie
MacDowell.

Eliminating Sources of Beach Contamination

  • This bread was dumped at a park along a Great Lakes beach for the gulls, geese, and squirrels that live there. Beach visitors often assume high bacteria levels that close beaches to swimmers are solely due to sewer overflows, but animals that defecate in the area also contribute to the problem.

This past summer beaches around the Great Lakes were closed in record numbers because of high bacteria counts. One government study indicates part of the problem might be animal feces, but the public does not seem to be aware that of the connection. The Great Lakes Radio Consortium’s Lester Graham reports:

Transcript

This past summer beaches around the Great Lakes were closed in record numbers
because of high bacteria counts. One government study indicates part of the problem
might be animal feces, but the public does not seem to be aware that of the connection.
The Great Lakes Radio Consortium’s Lester Graham reports:


High levels of bacteria in the water can make swimmers sick. Cameron Davis is with the
watchdog group, the Lake Michigan Federation. He says more can be done to stop the
contamination if sewer plants are improved and if beach visitors were more aware that
leaving food waste and feeding gulls and geese adds to the problem. That’s because the
birds defecate more, causing higher levels of bacteria along the shore.


“So, we’ve got the sewage treatment agencies saying ‘Oh, no. It’s the geese and the
gulls,’ and we’ve got the people feeding the birds saying ‘Oh, no. It’s sewage treatment
plants.’ So, you can see, it’s a combination of sources and there are things — I don’t care
what anybody says — there are things we can do to help solve the problem with all those
different sources.”


Davis says local governments need to start identifying and eliminating those sources of
beach contamination, starting with improving sewer plants and getting people to clean up
after their visits and to stop feeding wildlife at the beaches.


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