Lancaster farming. (Lancaster, Pa., etc.) 1955-current, June 24, 1995, Image 126
D2-Lincnter Farming, Saturday, June 24, 1995 AVIAN INFLUENZA Barrett S. Cowen, MS Dept. Of Veterinary Science Avian influenza (A. 1.) is a con stant threat to the commercial poultry industries of Pennsylvania, the nation and the world. A.I. in chickens, turkeys, guinea fowl, ducks, and other migratory waterfowl can range from an infec tion with no signs of disease to an acute fatal disease. When one focuses on the com mercial poultry industry, that seg ment of the U.S. industry which has historically been at greatest risk for A.I. has been the turkey industry because of the manage ment practices followed (such as open-range rearing). In the case of commercial chicken/egg produc tion, A.I. has only been a sporadic problem because of confinement rearing practices. Risk of A.I. in these production sectors is directly related to oppor tunity for and frequency of expo sure to avian influenza virus (AIV) for example, high for range reared turkeys and low for chick ens reared in confinement AI is caused by type A avian influenza viruses which have two different surface structures com posed of hemagglutinin (HA) and neuraminidase (NA), of which there are 14 and 9 subtypes, respectively. In turkeys. A.I. is usually a mild to moderate respir atory or reproductive disease caused by numbers of different HA and NA subtypes, but can be con siderably more severe (up to 77 percent mortality) in poults when secondary pathogens (for exam ple, e. coli) are involved. A.I. in chickens can also be caused by several different subtypes of AIV and can be symptomless, mild, or very severe with signs ranging from decreased activity and egg production, respiratory distress, diarrhea, swelling of the face and head, nervous disorders and high mortality. The most severe form of this disease is called “highly pathogen ic A.I. (HPAI)” and has been most frequently associated with H 5 and Fransgard rotary windrower SR 3200 SR 3200 B SR 3200 3 Point 10’6” SR 32008 Trail Type 10’6” ★ Strong arms - easy to dismantle. ★ Tempered pick-up tines of highest quality. ★ SR 3200 is equipped with flotation wheels. The pick-up tines will always follow the terrain contour. H 7 subtypes of AIV. AIV may be transmitted directly through contact with infected birds or indirectly through contact with contaminated feed, water, equip ment, cages, insects or motor vehi cles. Transmission has also been associated with live bird markets, haulers, dealers, and auctions. Humans are also frequently involved in flock-to-flock spread of AIV through movement of con taminated clothing, footwear, or other items. Only a few documented out breaks of HPAI have occurred in poultry in the last 20 years. The 1983-84 outbreak of HSN2 in Pen nsylvania was the first HPAI in the US since 1929. More recently, HPAI has been reported in Austra lia (198 S, 1992) and England (1991). Currently HPAI outbreaks are in progress in Mexico (HS sub type) and Pakistan (H 7 subtype). Such information confirms that no area of the world is immune to this potentially devastating disease of poultry. The outbreak of A.I. in Mexico creates some risk for the introduc tion of HPAI or potentially highly pathogenic A.I. into U.S./Pennsylvania poultry, but this risk is probably considerably smaller than the ongoing threat of AIV introduction presented by wild birds, particularly migratory waterfowl (an important AIV reservoir). In general, there are four sour ces of primary AIV infection in domestic poultry: wild birds, other species of domestic poultry, exotic captive birds, and mammals (such as swine). Wild birds, primarily waterfowl, historically have been incriminated in A.I. outbreaks. Surveillance of waterfowl and shorebirds has demonstrated that a large AIV reservoir does exist in these birds, as antibodies to nearly every AIV subtype have been detected. Although confined poul try are generally at less risk of AIV exposure, it can occur, especially if a pond or other waterfowl habitat is located on the premises. Another important source of AIV infection for the commercial poultry industry is other species of domestic poultry, especially those ★ A simple and strong construction. ★ The machine is equipped with a closed gearbox for adjusting the arms so that the crop may not get entangled. sold at auctions and in live bird markets. AIV exposed domestic birds or environments contami nated by them (e.g„ live bird mark ets) are potential sources of AIV for Pennsylvania’s commercial poultry industry. A good example of this threat was the documented HSN2 outbreak in commercial poultry of Pennsylvania in 1985-1986 which was traced back to a New York City live bird market. Biosecurity and surveillance are key ingredients in the prevention and control of A.I. Good biosecuri ty practices should reduce the risk of A.I. or other important poultry disease introduction and spread. Although optimal biosecurity practices cannot be followed in all poultry premises, the ideal prac tices should include: • “All-in, all-out” poultry management • Removal of all organic mater ial followed by the cleaning and disinfection of houses between flocks. * Prevent poultry from coming in contact with stored equipment or trash. • Keep other animals, such as pets, wildlife and livestock, out of contact with poultry. • Maintain locks on poultry houses and gates on farm access roads. • Clean and disinfect motor vehicles prior to coming to the premises. • Keep human traffic to a mini mum and permit only necessary personnel into poultry houses. • Require that clean coveralls and disinfected boots be worn by all personnel entering poultry houses. • Require persons having recent contact with other poultry to show er before entering your poultry houses. • Thoroughly clean and disin fect any equipment used within a poultry house. Wild birds, and domestic birds in live bird markets, are ongoing sources of AIV and a potential threat of HPAI for Pennsylvania’s large commercial poultry industry. Such a threat demands a constant surveillance program for this important industry. Pennsylvania’s A.I. surveil lance program is one of the best in the U.S. and insures poultry pro ducers that A.I. is not circulating undetected in their flocks. Maxi- FARM EQUIPMENT 10V4' Bush Hog mower, excellent condition. 304/725-5323. 110 hp Iveco engine, good running condition, $2500. 717/687-8266 8-B:3oam. 16* packing line, includes the 4' receiver belt, brusher washer, sponge absorber, (2) sizing units, and 5' turn table. Used 20' aluminum produce conveyor $575. New 28' produce conveyor $1,200. New 20 bushel produce bins, $32; 10 or more $3O. (717)532-5918. 1937 AC Tractor-Model W-C Runs. $800; 1928 McCormick Deering Trac tor Model 30-15 with Steel Wheels, Cast Iron Steering Wheel. Restorable. $7OO. (717)463-2347. 1947 John Deere A; Ford BN. 717-336-2497 after 4PM. mum participation in the program is important if maximum reliability/beneflt is to be realized. Therefore, it is very important that the industry submit sick birds to their regional state diagnostic laboratory in a timely fashion and that samples for testing be for warded to the appropriate labor atories on a regular basis. Further, the Pennsylvania ENGLEWOOD. Colo. Youth from seven Midwestern states made for stiff competition at the 1995 Heartland Regional Junior Limousin Show in Council Bluffs, lowa on June 1-3. A 984-pound Limousin steer exhibited by Andrea Luedtke, Wisner, Neb. was named grand champion steer by judge Neal Thompson of Springfield, Mo. Reserve champion steer honors went to a 996-pound steer exhibit ed by Adam Nielson, Arlington, S.D. Debra Voithmann, McClelland, lowa joined the winner’s circle with the grand champion bred and owned bull, VORD Donitello 435 D. The 9/1/94 bull is sired by YKCC Top Cop 2328. SLVL Angel Cookie 140 D, ex hibited by Jamie Straight, Logan, lowa, won grand champion fe male after topping Division in. The 1/23/94 female is a daughter of Wulf's Quarterback 42228. Also from Division m, taking re serve champion female honors was SLVL Senorita, a 2/6/94 daughter of Polled Sonic exhibited by Karen Harrod, Flat Rock, Ind. In Division I, Debra Voithmann exhibited VORD Daniella 42SD BUY. SELL. TBADE OB BENT THROUGH THE PHONE: 717-626-1164 or 717-304-3047 FAX 717-733-6058 Mon., Tuea., Wed., Fri. 8 AM to 5 PM; Thun. 7 AM to 5 PM 1948 Massey Harris pony, new front rubber, all attach ments w/wood cutting ca pacity, Ist $l5OO cash; af ter spm 717/249-7156. 1950 JO B, restored to im maculate condition, $5500. 717/684-4723. 1970 Mack tractor w/87 Rogers 35 ton 10-boy. Ready to roll. Excellent condition, $9900. 302-737-3800. 1973 JO 544 4WD Loader w/Cab, 0 Hours on New JO Diesel, Rebuilt Trans., New Hydraulic Pump and Lines, 4Yd. Bucket w/ Grapples, Solid Tires, Ex cellent Condition. (800)240-7543 Carl Hosier. 1979 MF 550 combine, 4WD, hydrostatic, 16' float ing grain table w/UII Reel, 1144 wide row corn head, shed kept, field ready, $13,000. 410-742-0510 af ter 6PM. lowa, Neb. Youth Exhibit Limousin Champions help v OoßseV .E 1981 JD 5820 SP chopper, farmer owned, 3600 hrs., 4-wheel drive, new knives and checked over, $42,500. 3x40 head, near new chains, good, $1,500. 3x40 head, Tow acreage, not used much, $2,950. 5Vi ‘ pickup $5OO. Roeder Implement, Seneca, KS (913)336-6103. 1991 equipment trailer, 28'x8', Blair gooseneck flatbed. Adjustable beaver tail, factory winch, low miles, excellent condition. Don't miss this onel New $B9OO, asking $5900. 201-579-1226. 1993 Belarus 310 4WO 38HP w/Loader and Back hqe, 240 Hours. $13,000. (717)864-3202. 1993 John Deere 7700 tractor, MFWD, cab, PS, 1(00 hr*., asking $55,000. 814-473-6174. Department of Agriculture (PDA) asks that producers of broilers, turkeys, and roasters submit 10 blood samples per flock for AIV antibody testing. Ten eggs per month per house are recommended for commercial layers and mature breeder flocks. PDA also monitors and samples auctions, poultry shows, and live bird markets in Philadelphia for the presence of AIV. to championship honors. The 4/5/94 female is a daughter of YKCC Top Cop 2328, Reserve champion honors in Division 1 went to C L Gretchen, a 9/12/94 daughter of Wulf*s Rambler 8400 X exhibited by Billy Biscoe, Cottage Grove, Minn. Erica Vorthmann, McClelland, lowa led out the top in Division II with VORT Delight 417 D. a 3/21/94 daughter of LKCC Toma hawk’s Touchdown. For reserve champion in Division 11. judge Thompson selected ROMN Dom inique ID, a 3/28/94 daughter of YKCC Medallion 342 Y exhibited by Adam Nielson. In the showmanship competi tion, senior champion honors went to Debra Vorthmann while junior champion honors went to Andrea Luedtke. Outside the show arena, youth participated in public speaking, extemporaneous speaking and sales talk contests to accumulate points, in addition to points earned for showing, for overall sweep stakes awards. Topping the sweepstakes divisions were junior - Megan Rolf, Leroy, Kan.; inter mediate - Jamie Straight; and senior - Debra Vorthmann. 1994 JD 6810 4X4 w/ Model 4500 Kemper Head, 400 Hours, Some Warranty Remaining. $157,500. (704)289-1040. 2120 Ford, 4WD, 7588, backhoe, 7109 loader, 450 hours, shuttle trans., $19,900, (717)647-9020. 2350 Gehl discfaine, field ready, $1 750. 717-445-5725. 26 row FMC spray booms, complete with cylinders, hydraulic controls. Asking $2,000. Call anytime, leave message. Mains 207-435-6029. #4O John Deere Manure Spreader, excellent condi tion, back sweeps for JO A or B. Call evenings 717/677-4212. 4400 diesel combine, rot ary screen, 3665 hours. A/C, 215 rigid head, 13' bean head, 443 com head. (717)667-2783.