Showing posts with label animal husbandry. Show all posts
Showing posts with label animal husbandry. Show all posts

Wednesday, December 16, 2009

A Fish Oil Story

A Fish Oil Story
By PAUL GREENBERG
Published: December 15, 2009


If you are someone who catches and eats a lot of fish, as I am, you get adept at answering questions about which fish are safe, which are sustainable and which should be avoided altogether. But when this fish oil question arrived in my inbox recently, I was stumped. I knew that concerns about overfishing had prompted many consumers to choose supplements as a guilt-free way of getting their omega-3 fatty acids, which studies show lower triglycerides and the risk of heart attack. But I had never looked into the fish behind the oil and whether it was fit, morally or environmentally speaking, to be consumed.

The deal with fish oil, I found out, is that a considerable portion of it comes from a creature upon which the entire Atlantic coastal ecosystem relies, a big-headed, smelly, foot-long member of the herring family called menhaden, which a recent book identifies in its title as “The Most Important Fish in the Sea.”

The book’s author, H. Bruce Franklin, compares menhaden to the passenger pigeon and related to me recently how his research uncovered that populations were once so large that “the vanguard of the fish’s annual migration would reach Cape Cod while the rearguard was still in Maine.” Menhaden filter-feed nearly exclusively on algae, the most abundant forage in the world, and are prolifically good at converting that algae into omega-3 fatty acids and other important proteins and oils. They also form the basis of the Atlantic Coast’s marine food chain.

Nearly every fish a fish eater likes to eat eats menhaden. Bluefin tuna, striped bass, redfish and bluefish are just a few of the diners at the menhaden buffet. All of these fish are high in omega-3 fatty acids but are unable themselves to synthesize them. The omega-3s they have come from menhaden.

But menhaden are entering the final losing phases of a century-and-a-half fight for survival that began when humans started turning huge schools into fertilizer and lamp oil. Once petroleum-based oils replaced menhaden oil in lamps, trillions of menhaden were ground into feed for hogs, chickens and pets. Today, hundreds of billions of pounds of them are converted into lipstick, salmon feed, paint, “buttery spread,” salad dressing and, yes, some of those omega-3 supplements you have been forcing on your children. All of these products can be made with more environmentally benign substitutes, but menhaden are still used in great (though declining) numbers because they can be caught and processed cheaply.

For the last decade, one company, Omega Protein of Houston, has been catching 90 percent of the nation’s menhaden. The perniciousness of menhaden removals has been widely enough recognized that 13 of the 15 Atlantic states have banned Omega Protein’s boats from their waters. But the company’s toehold in North Carolina and Virginia (where it has its largest processing plant), and its continued right to fish in federal waters, means a half-billion menhaden are still taken from the ecosystem every year.

For fish guys like me, this egregious privatization of what is essentially a public resource is shocking. But even if you are not interested in fish, there is an important reason for concern about menhaden’s decline.

Quite simply, menhaden keep the water clean. The muddy brown color of the Long Island Sound and the growing dead zones in the Chesapeake Bay are the direct result of inadequate water filtration — a job that was once carried out by menhaden. An adult menhaden can rid four to six gallons of water of algae in a minute. Imagine then the water-cleaning capacity of the half-billion menhaden we “reduce” into oil every year.

So what is the seeker of omega-3 supplements to do? Bruce Franklin points out that there are 75 commercial products — including fish-oil pills made from fish discards — that don’t contribute directly to the depletion of a fishery. Flax oil also fits the bill and uses no fish at all.

But I’ve come to realize that, as with many issues surrounding fish, more powerful fulcrums than consumer choice need to be put in motion to fix things. President Obama and the Congressional leadership have repeatedly stressed their commitment to wresting the wealth of the nation from the hands of a few. A demonstration of this commitment would be to ban the fishing of menhaden in federal waters. The Virginia Legislature could enact a similar moratorium in the Chesapeake Bay (the largest menhaden nursery in the world).

The menhaden is a small fish that in its multitudes plays such a big role in our economy and environment that its fate shouldn’t be effectively controlled by a single company and its bottles of fish oil supplements. If our government is serious about standing up for the little guy, it should start by giving a little, but crucial, fish a fair deal.

Paul Greenberg is the author of the forthcoming “Four Fish: The Future of the Last Wild Food.”


http://www.nytimes.com/2009/12/16/opinion/16greenberg.html?em

Thursday, April 30, 2009

The horror that is Smithfield ~ Rolling stone

Smithfield Foods actually faces a more difficult task than transmogrifying the populations of America's thirty-two largest cities into edible packages of meat. Hogs produce three times more excrement than human beings do. The 500,000 pigs at a single Smithfield subsidiary in Utah generate more fecal matter each year than the 1.5 million inhabitants of Manhattan. The best estimates put Smithfield's total waste discharge at 26 million tons a year. That would fill four Yankee Stadiums. Even when divided among the many small pig production units that surround the company's slaughterhouses, that is not a containable amount.

Smithfield estimates that its total sales will reach $11.4 billion this year. So prodigious is its fecal waste, however, that if the company treated its effluvia as big-city governments do -- even if it came marginally close to that standard -- it would lose money. So many of its contractors allow great volumes of waste to run out of their slope-floored barns and sit blithely in the open, untreated, where the elements break it down and gravity pulls it into groundwater and river systems. Although the company proclaims a culture of environmental responsibility, ostentatious pollution is a linchpin of Smithfield's business model.

A lot of pig shit is one thing; a lot of highly toxic pig shit is another. The excrement of Smithfield hogs is hardly even pig shit: On a continuum of pollutants, it is probably closer to radioactive waste than to organic manure. The reason it is so toxic is Smithfield's efficiency. The company produces 6 billion pounds of packaged pork each year. That's a remarkable achievement, a prolificacy unimagined only two decades ago, and the only way to do it is to raise pigs in astonishing, unprecedented concentrations.

Smithfield's pigs live by the hundreds or thousands in warehouse-like barns, in rows of wall-to-wall pens. Sows are artificially inseminated and fed and delivered of their piglets in cages so small they cannot turn around. Forty fully grown 250-pound male hogs often occupy a pen the size of a tiny apartment. They trample each other to death. There is no sunlight, straw, fresh air or earth. The floors are slatted to allow excrement to fall into a catchment pit under the pens, but many things besides excrement can wind up in the pits: afterbirths, piglets accidentally crushed by their mothers, old batteries, broken bottles of insecticide, antibiotic syringes, stillborn pigs -- anything small enough to fit through the foot-wide pipes that drain the pits. The pipes remain closed until enough sewage accumulates in the pits to create good expulsion pressure; then the pipes are opened and everything bursts out into a large holding pond.

The temperature inside hog houses is often hotter than ninety degrees. The air, saturated almost to the point of precipitation with gases from shit and chemicals, can be lethal to the pigs. Enormous exhaust fans run twenty-four hours a day. The ventilation systems function like the ventilators of terminal patients: If they break down for any length of time, pigs start dying.

From Smithfield's point of view, the problem with this lifestyle is immunological. Taken together, the immobility, poisonous air and terror of confinement badly damage the pigs' immune systems. They become susceptible to infection, and in such dense quarters microbes or parasites or fungi, once established in one pig, will rush spritelike through the whole population. Accordingly, factory pigs are infused with a huge range of antibiotics and vaccines, and are doused with insecticides. Without these compounds -- oxytetracycline, draxxin, ceftiofur, tiamulin -- diseases would likely kill them. Thus factory-farm pigs remain in a state of dying until they're slaughtered. When a pig nearly ready to be slaughtered grows ill, workers sometimes shoot it up with as many drugs as necessary to get it to the slaughterhouse under its own power. As long as the pig remains ambulatory, it can be legally killed and sold as meat.

The drugs Smithfield administers to its pigs, of course, exit its hog houses in pig shit. Industrial pig waste also contains a host of other toxic substances: ammonia, methane, hydrogen sulfide, carbon monoxide, cyanide, phosphorous, nitrates and heavy metals. In addition, the waste nurses more than 100 microbial pathogens that can cause illness in humans, including salmonella, cryptosporidium, streptocolli and girardia. Each gram of hog shit can contain as much as 100 million fecal coliform bacteria.

Smithfield's holding ponds -- the company calls them lagoons -- cover as much as 120,000 square feet. The area around a single slaughterhouse can contain hundreds of lagoons, some of which run thirty feet deep. The liquid in them is not brown. The interactions between the bacteria and blood and afterbirths and stillborn piglets and urine and excrement and chemicals and drugs turn the lagoons pink.

More at rolling stone