Agriculture sucks a whopping 80 percent of the Colorado River’s water every year. The largest contributor to that massive amount of drainage is not commonly criticized culprits such as California almonds or avocados—it’s hay.
Alfalfa hay, the nutrient-rich backbone of the dairy, beef and horse industries in the West, produces more protein per acre than any other field crop. But it comes at a great cost to the region’s water supply. Alfalfa alone siphons off more than a third of that agricultural water usage.
But there’s a potential solution on the table that some ranchers and farmers have been slowly adopting over the past decade or so. Hydroponic fodder, young tender grass grown from cereal grains in indoor systems, can grow animal feed using up to 98 percent less water than it would take to grow a comparable amount of calories in a field. Although the design and water sustainability varies from system to system, these technologically advanced setups have the potential to grow far richer animal feed using just a fraction of the water supply, land, energy and labor needed for traditional hay crops while potentially cutting greenhouse gas emissions.
Al Noorda of Cedar Fort, Utah started using fodder for his grass-fed beef cattle and horses in 2014, following years of drought at his mixed-use ranch. Although his 150 to 300 cows are turned out to graze on high-elevation native bromes, crested wheatgrass and kochia grasses during the warm weather grazing season, on dry years, he did not have enough water to grow alfalfa to feed them through the winter months.
Now that he’s adopted the technology, the 2,000 pounds per day of fodder he grows takes about 1,000 gallons of water daily. To grow that much alfalfa would require about 100 acres of land with about 50,000 gallons of water every day, he estimates. “The water needed to grow fodder is far, far, far less,” says Noorda.
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Noorda still grows some alfalfa to supplement his feed. And in wet years, he’s able to sell the portion that his fodder has replaced. This has significantly lowered the water use of his Spring Creek Livestock and Feed, while boosting his bottom line.
The water savings since he added the technology to his farm have been substantial, yet the benefits and cost savings have gone well beyond conserving an increasingly contentious natural resource in the West.
Noorda feeds his cattle and horses a 70 percent fodder to 30 percent dry alfalfa hay ratio. The bulk of their nutrients come from the fodder, so the hay is used for fiber roughage and to keep the stomachs moving. Because fodder boasts a far higher digestibility rate, upwards of 80 percent compared to dry hay’s 30 percent, the nutrient value is yet another advantage. Noorda says his cattle require less doctoring and his vet bills have decreased due to fewer cases of pneumonia and scours (diarrhea) in calves, who are suckling from mothers consuming the nutrient-rich feed. Plus, his cattle actually continue to gain weight through the winter months, putting on 2.5 to 2.75 pounds per day—about the same as when they’re grazing the lush spring grass at the beginning of the season. “I’m getting an extra five months of weight gain I wouldn’t otherwise get,” says Noorda.
There’s a lot of science to back up many of hydroponic fodder’s benefits.
A case study on beef cattle by FodderTech found a 27 percent reduction in feeding costs per pound of weight gain using supplementary barley sprouts in its system, costing farmers $60 to $100 per ton for fresh, green feed. Other studies have shown that hydroponic fodder’s increased digestibility could increase milk production and milk fat content in dairy cows, enhance body weight of meat animals and improve the performance of a variety of livestock. Noorda and others have found that his horses have improved stamina and shinier coats since incorporating fodder into their diets.
The rancher, who has become a huge proponent of the technology, now also works in sales, design and development for FodderTech, the longest-running hydroponic fodder system purveyor in the United States.
These modular systems, which were designed in Australia following a long drought in the 1990s, take soaked grains, such as barley, wheat or rye, which are sown into trays that are automatically watered and fed for about a week before they’re ready to serve. It takes about an hour a day of labor to maintain and clean the systems to prevent mold growth— the greatest challenge for the technology.
To keep fungus at bay, FodderTech systems must be kept inside a climate-controlled space and cleaned regularly. The water in these systems can be recirculated for maximum water efficiency; but to prevent mold growth in the sugars that are released from the sprouts, the company advises the water to be pumped out for cattle to drink or to irrigate crops. Even so, the water efficiency is far higher than traditional farming methods. “It uses somewhere between one to two percent of the water it takes to grow alfalfa hay,” says FodderTech majority owner Jon Baker. “That’s a huge water-saving potential.”
Mold aside, the other drawback to these commercial systems is the initial cost. A 200-pound-a-day system, which is enough to feed 10 horses or a just over a handful of beef cattle, starts at between $5,000 and $6,000, before even building out the climate-controlled space in which it will need to be housed. According to Baker, the cost savings of reducing increasingly expensive hay bills means these FodderTech systems tend to pay for themselves fairly quickly, somewhere between 12 and 18 months.
Noble has designed her systems specifically for the horses she keeps on her 40-acre Bay Area ranch, so there are some differences in the setup. Everything is automated and kept in a humidity- and temperature-controlled room that’s maintained at 68 and 72 degrees. To inhibit mold growth, Noble prefers removable trays that can be pressure washed with a mix of bleach and soap, which she has found easier to manage at her mostly volunteer-run facility. Noble also chose to forego grow lights for the sugar-sensitive equines she’s feeding. “Cattle aren’t sensitive to sugar the way horses are,” she says.