Mike Farrell Wildlife Art Publication Sales Hartland Wi

Turkey chicks at farm, AP generic file photo

Turkeys stand up in a barn on turkey farm near Manson, Iowa on Aug. 10, 2015.

OMAHA, Neb. — The spread of a bird flu that is deadly to poultry raises the grisly question of how farms manage to quickly impale and dispose of millions of chickens and turkeys.

It's a chore that farms across the state are increasingly facing equally the number of poultry killed in the past two months has climbed to more than than 24 million, with outbreaks reported near every solar day. Some farms accept had to kill more than than 5 million chickens at a single site with a goal of destroying the birds inside 24 hours to limit the spread of the disease and prevent animals from suffering.

"The faster we can get on site and depopulate the birds that remain on site, the improve," Minnesota State Veterinarian Beth Thompson said.

The outbreak is the biggest since 2015, when producers had to kill more than than 50 1000000 birds. And then far this twelvemonth, there accept been cases in 24 states, with Iowa the hardest hit with about thirteen million chickens and turkeys killed. Other states with sizable outbreaks include Minnesota, Wisconsin, S Dakota and Indiana.

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Farms faced with the need to kill so many birds plow to recommendations by the American Veterinarian Medical Association. Even equally it has developed methods to kill the poultry rapidly, the association acknowledges its techniques "may not guarantee that the deaths the animals face up are painless and distress free." Veterinarians and U.S. Department of Agriculture officials also typically oversee the process.

Ane of the preferred methods is to spray h2o-based firefighting cream over birds as they roam around the ground inside a befouled. That foam kills the animals by cutting off their air supply.

When foam won't work considering birds are in cages above the ground or it's too common cold, the USDA recommends sealing up barns and piping carbon dioxide inside, offset rendering the birds unconscious and ultimately killing them.

If i those methods won't work because equipment or workers aren't available, or when the size of a flock is too big, the association said a last resort is a technique chosen ventilation shutdown. In that scenario, farmers finish airflow into barns, which raises temperatures to levels at which the animals die. The USDA and the veterinary association recommend that farmers add together additional oestrus or carbon dioxide to barns to speed up the procedure and limit suffering by the animals.

Mike Stepien, a spokesman for the USDA's Animal and Plant Health Inspection Service, said the techniques are the best options when it's necessary to rapidly kill so many birds.

"State animal health officials and producers advisedly counterbalance the different options to determine the all-time option for humane depopulation and do not make such decisions lightly," Stepien said.

Non everyone agrees.

Animal welfare groups argue that all these methods for speedily killing birds are inhumane, though they are particularly opposed to ventilation shutdown, which they note can take hours and is akin to leaving a dog in a hot machine. Creature rights groups delivered a petition terminal year signed by 3,577 people involved in caring for animals, including most 1,600 veterinarians, that urged the veterinarian clan to finish recommending ventilation shutdown every bit an option.

"Nosotros take to do improve. None of these are adequate in any fashion," said Sara Shields, manager of subcontract creature welfare science at Humane Society International.

Opponents of the standard techniques said firefighting foam uses harmful chemicals and it essentially drowns birds, causing chickens and turkeys to suffer convulsions and cardiac arrest as they die. They say carbon dioxide is painful to inhale and detectible by the birds, prompting them to try to flee the gas.

Karen Davis, of the nonprofit group United Poultry Concerns, urged the veterinarian association to finish recommending all of its three main options.

"They're all ways that I would non choose to die, and I would not choose everyone else to die regardless of what species they belong to," Davis said.

Shields said at that place are more humane alternatives, such as using nitrogen gas but those options tend to exist more expensive and could take logistical challenges.

Sam Krouse, vice president of Indiana-based MPS Egg Farms, said farmers experience miserable about using any of the options.

"We cascade our lives and livelihoods into taking care of those birds, and it'due south merely devastating when we lose any of those birds," Krouse said. "Everything that we're doing every twenty-four hours is focused on keeping the disease out and making sure that we're keeping our hens as prophylactic as possible."

Officials emphasize that this virus that's spread primarily through the droppings of infected wild birds doesn't threaten food safety or represent a pregnant public health threat. Ill birds aren't allowed into the nutrient supply and properly cooking poultry and eggs kills whatsoever viruses that might be nowadays. And wellness officials say no human cases of bird flu have been found in the United States during this current outbreak.

Once poultry are dead, farmers must quickly dispose of the birds. They usually don't want to gamble the run a risk of spreading the virus by transporting the carcasses to landfills, and so crews typically pile the birds up into huge rows within barns and combine them with other materials, such every bit ground up corn stalks and sawdust to create a compost pile.

After a couple weeks of decomposition, the carcasses are converted into a material that can exist spread on cropland to help fertilize crops. In some cases, carcasses are buried in trenches on the farm or incinerated.

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Source: https://madison.com/business/grisly-question-of-bird-flu-how-to-kill-dispose-of-millions-of-poultry/article_8fa055d0-5aeb-5136-8c00-ee26e346551d.html

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