Swine Odor Control A Tough H (Continued from Page A 33) „ . ....... .. . , . of aspirators to inject air into the study the results of odor containment. mani^> crcatillg surface bubbles Results for the use of straw was promising. Straw at depths of six to 10 inches as a layer on top of the lagoons worked well. Almost any kind of straw will do. Com stalks were useful but their weight was a detriment At least 300 earthen-basin manure lagoons in lowa are under straw cover, according to Bundy. Total cost of odor control, using 40-pound wheat straw bales at a cost of $2.50 per bale, with an average storage depth of 10 feet, was 30 cents per pig marketed for a 4-inch cover, 46 cents for 6-inch cover, 61 cents for an 8-inch cover, and 76 cents for a 10-inch straw cover. Research looked into the use of “leka rock,” a clay-type material, in earthen basin. The manure had to be pumped out with the cover to about eight inches of the surface. Another system looked at the use Tuesday, Registration begins at 12 noon at the show RODEO Begins at 1 pm ends at 5 pm You'll Be Operating These For A Chance to WIN Skid Steers... These Prizes... . sl,oooWorth of Seed Com provided by MYCOCEN Case Model #1845C Provided by Messlck Farm Equipment New Holland Model#LXs6s provided by Messlck Farm Equipment John Deere provided by Deere Creek Equipment Mustang provided Penn Fork Truck Bobcat Model#763 provided by Finch Hanover JCB Model #lB5 provided by Ag industrial Inc. The Skid Steer Rodeo is a timed obstacle course type event. Each contestant will have to operate all participating skid steers on their assigned course. The quickest overall time for all events will be declared the winner. Penalties are given for hitting props, non completion of an event etc. Unsafe operation in any event will cause immediate disqualification. Registration is just prior to the event at the show. There is no charge to enter All operators MUST BE at least 18 YEARS OF AGE. Be prepared to prove it. For More li which would harden, forming a crust cover over the manure. With straw, there was little or no fly development. With the case of the crust, however, fly control became a problem. Bundy noted that you trade one problem for another using some of these methods. On the round steel slurry tank on the lowa State farm, a 40- 60 mil plastic cover was placed on the tank. Odors were reduced 80-90 percent at a cost of $2-$3 per square foot. As for application, a system of injecting the manure below ground is “excellent for reducing odors," noted Bundy. One system makes use of a large tanker with a battery of dragging hoses which spreads manure on the grassland, reducing the trajectory of the odors. Untreated manure spread on the surface of fields has an odor. York Fairgrounds. York PA Gehl Model#3B2s provided by Gehl on the Keystone Farm show or the SMd Steer Rodeo call Ken Mating 1 -800-21 8-5586 threshold of 2,818 high and noticeable. Buried with plow, the threshold quickly drops to 200; with harrow, to 131; and with injection, to 32. In the end, good management will help curtail litigation. It's important not to spread when sum mer activities will in bloom and quickly incorporate the manure to' reduce odors. The best time to spread manure is on a bright, sunny, day, with low wind. That is the most “unstable" atmosphere, Bundy said, which is good to help reduce odor com plaints. The worst time to spread would be during stable weather conditions on a cloudy, cool, somewhat windy day. lowa State learned a lot about odor control and wind direction in the years since a neighbor sued them in 1990. But in most nuisance complaints, it is more likely that complaints will be clusters. 2nd Annual Keystone Farm Show CHAMPIONSHIP SKID STEER RODEO January sth $750 worth of Seed com provided by GOLDEN HARVEST/ACRICULVER $lOO value Custom Embroidered Jacket provided by RUBY’S sewing etccustom EMBROIDERY $5O Toward Rental or Purchase of a Pressure Cleaning system Provided by PROGRESSIVE PRESSURE SYSTEMS Also PARTICIPATION PRIZES TO THE FIRST 50 REGISTERED CONTESTANTS PROVIDED BY ffeelet, Agriculver Golden Harvest; Chetngro, Mahoning outdoor Furnaces .vermeer, CSI & Country Folks of PA , $650 value 2 day rental- Mustang Skid steer Provided by PENN FORKLIFT $5OO worth of seed Com provided by CHEMCRO $5O worth of Baler twine Provided by VERMEER Lancaster Farming, Saturday, December 19, 1998-A35 At the Pork Forum, a meeting sponsored by LanChester Pork Producers and the industry, Dr. Dwaine S. Bundy, cen ter, reviewed wide-ranging research that his department has accomplished in the field of swine odor control. At left, Dan McFarland, extension ag engineer from Penn State and ventilation specialist, noted it is important to match the cor rect type of ventilation system for the season. At right is Chet Hughes, extension livestock specialist, who provided a review of Pork Quality Assurance Level 111 certification. dl Bundy learned it’s important to be able to measure odors. “If we can’t measure something, we’re just chasing our tails," he said. Without a system of measurement and recording, “we have nothing to stand on in legislative issues." Several pit additives were also studied at lowa State. One of the purposes of the prog ram, Bundy noted, was to help companies deve lop a better product Some challenges, how ever, included the fact that the product formu lation can change often, sometimes within 4-5 months; companies go in and out of business, perhaps too often; and there is concern that the product the university tested may not be the same one that ends up in the hands of consumers. The product should be available to produc ers in sealed containers, Bundy noted, much like pesticides. Three different types of additives were tested, including chemical additives (coal- or copper-sulfate based), used to kill microbial activity and prevent odors; microbial, to get the natural process of breakdown under way to reduce odors; using enzymes to increase the effectiveness of micro bes; and alkaline by products, which include kiln dust and fly ash, to reduce odors. The university employed a variety of methods, including bench, column, and some field testing and applications. Many field tests of the products ' show promise. One thing the researchers quickly noted is that manures can be reduced from simply controlling the feed water and minimiz ing waste. However, this posed a challenge in agitating and pumping the manure because of
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