Proper Hay Storage Techniques Can Increase Value, Decrease Quality Losses

Hay bales wrapped in cellophane. Photo: Thinkstock

PIKETON, Ohio – Producers who follow the proper techniques for hay storage will find their crops will retain more value and suffer fewer losses, said a beef cattle expert from the College of Food, Agricultural, and Environmental Sciences at The Ohio State University.

Considering that hay production is very costly, producers may want to take special care to store hay correctly to ensure it retains quality, said John Grimes, beef coordinator for Ohio State University Extension and a member of the OSU Extension Beef Team. OSU Extension is the outreach arm of the college.

According to the OSU Extension 2013 enterprise budget, at 3 tons per acre, grass hay costs $112.77 per ton to produce. Alfalfa, at 4 tons per acre, costs $133.02 per ton, Grimes said.

“Hay is an expensive crop to harvest, and storage losses can be significant,” he said. “Much like corn and soybeans, hay is a valuable crop and should be treated as such.

“Hay is an asset, and with the current hay prices, you can’t afford to have losses. If you are losing hay at 10 to 20 percent, those are real dollars that you are losing.”

Ohio farmers produced some 1.12 million acres of hay in 2011, Grimes said.

“At an average of about 2.5 tons per acre, this yielded a total production of 2.7 million tons of hay in 2011 used to support several types of ruminant animals, including beef, dairy, goats, horses and lambs,” he said.

Grimes offers the following tips to avoid hay storage losses:

·      Hay to soil contact is typically the primary source of losses associated with hay stored outdoors.

·      If placing bales on the ground cannot be avoided, make sure a well-drained area is selected.

·      Hay should be stored in an open area that can receive maximum sunlight.

·      When aligning bales for storage, bales should be placed so that the sides of the bales do not touch. An exception to this would be if you were stacking bales in a pyramid fashion for covering under a roof or with a tarp or other material.

·      The flat ends of the bales should be firmly butted against one another, as this can protect the ends almost as well as if they were one continuous bale.

·      Losses are kept to a minimum when hay is either covered by a roof or some other type of covering. The losses could increase when the hay is moved outside, especially when hay is stacked on bare ground.

“For example, hay loss is generally 4 to 7 percent when stored in a conventional shed, while hay stacked outside on the ground can see losses of 25 to 35 percent, according to a study by the University of Kentucky,” Grimes said. “In general, the more protection you can provide, the less hay loss you will experience.”

The ideal storage for hay is in bales placed on a rock foundation stored underneath a structure with a roof, he said.

“If you don’t have a protected storage, place hay on a layer of geotextile fabric cloth covered with rock to avoid bale-to-soil contact,” Grimes said. “Another option is to stack in a pyramid covered with a tarp or other protective covering for outside.”

When choosing a bale storage area, producers should consider ease of access to the bales during the next feeding periods for their livestock, he said.

“When you get into the baling season, you have to start to think about how you’re going to store the hay to make sure you have adequate feed for your livestock next winter,” Grimes said. “You may have plenty of feed now, but you may have a shortfall around the corner, and if you run short on hay, you will have to make up for it another way.”

Other tips he offers producers:

·      A bale stored under a tree canopy isn’t a good idea because it offers only minimal protection from rain and is slow to dry.

·      Losses are minimized when adequate space is left between the bales and the sides of the bales are not allowed to touch.

More information on proper hay storage can be found in a podcast posted by Grimes as part of OSU Extension’s May 6 Beef Cattle Letter at

Tracy Turner
For more information, contact: 

John Grimes
740-289-2071, ext. 242