New Test Sought for Bovine T.B. ARS scientists are seeking a good supplemental test that W ifl spot tuberculosis-carrying cattle that don’t react to the standard skin test. Ut is these undetected car eers that make finishing the •pB eradication job in the United States so difficult. A herd of cattle may con tain only one undetected TB inlecled animal, which can spread the disease to other membeis of the herd. These animals develop TB, react to the skin test, and are removed. Meanwhile, the undetected car uei maj lemain as a continu- 1 AVAILABLE NOW I • Cert. Buffalo Alfalfa • Cert. Vernal Alfalfa • Cert. Ranger Alfalfa • Cert. Naragansett Alfalfa • Cert. Pennscott Clover • Lincoln Brome Grass ORDER YOUR FALL SEED GRAIN NOW • Balboa Rye • Norline Winter Oats • Cert. Wong Barley • Cert. Pennrad Barley P. L. ROHRER & BRO., INC. • ( •I I I • ( I SMOKETOWN Stop This Profit Drain RAISE YOUR CALVES THE ECONOMICAL WAY USING FARM BUREAU CALF FEEDS After the first three days, it isn’t necessary to feed a calf the mother’s milk. In fact, it’s down right expensive Many Pennsylvania dairymen are using a better feeding method to raise their calves . . . one that grows strong, healthy herd replacements, yet lets them sell all the whole milk a calf would normally need. The feeding program is based on Farm Bureau’s Coopera tive Mills Calf Feeds. It starts with Double Duty Calfmaker . . . a balanced milk replacement feed. From the eleventh day after birth, Double Duty Calfmaker is gradually replaced by Calf Developer. During the critical starting period these two feeds supply all the vitamins and body building nutrients your calves need. They help to develop them into strong, healthy heifers. Stop the drain on your milk dollar. Replace whole milk with Farm Bureau Calf Feeds for your calves. CALL FARM BUREAU TODAY FOR YOUR CALF FEED NEEDS Double Duty Colt Feed Double Duty Veal Maker Calf Pellets Calf Developer Calf Manna Kaffa ASK YOUR FARM BUREAU FIELDMAN FOR COMPLETE DETAILS OF OUR DAIRY FEEDING PROGRAM LANCASTER 394-0543. ing source of infection in the herd. Following extensive research to solve this problem, ARS veterinarians A B. Larsen and K. E Kopecky at the National Animal Disease Laboratory, Ames, lowa, developed what they call “a modified thermal test,” in which a large quan tity of tuberculin is injected into a cow’s veins and her temperature measured If she de\elops a rise in body tem perature of at least 1 5 degrees F, peaking no lower than 303 2 degrees F, she should be consideied a reactor The new test was tiled out on 76 cows from herds be lieved to contain undetected carriers The cows weie fust • S-37 Orchard Grass • Reeds Canary Grass • Timothy • Cert. Climax Timothy • Ladino Clover • Pasture Mixture • Balboa Rye • Cert. Redcoat Wheat • Cert. Dual Wheat • Cert. Seneca Wheat • Cert. Pennoll Wheat Phone Lane. 397-3539 Have You Heard About FARM BUREAU'S Sound Calf Feeding Program? LANCASTER COUNTY FARM BUREAU given the standard skin test and 47 reacted. They were then given the thermal test and 21 reacted—l 6 that had leaded to the standard test and 5 that had not. All 76 cows were slaughter ed and examined at federally inspected establishments, and 35 were found to have tuber culosis lesions Of the 47 cat tle reacting to the standard skin test, 30 showed evidence of tuberculosis on postmortem examination 16 of these did not react to the thermal test. Five cattle that reacted to the thermal test but not to the skin test were found in fected on postmortem exam iration Lai sen and Kopecky say these results show that the modified theimal test cannot leplace the standaid skin test but that it can be useful as a supplemental y tool in detect ing TB-camer cattle The sci entists are continuing then studies to further improve the new test SEE-THROUGH SEED HOPPERS SAVE STEPS On International Harvesters new 456 Hilldrop Corn Plant er, which was developed to increase the speed and pre cision of corn planting, the operatoi can quickly check the seed kernel fill level right from his tractor seat because of the high order of tiansluc ency of the molded fiber glass hoppeis These hoppers are produced foi IH by the Mold ed Fiber Glass Company of Ashtabula, Ohio, which also molds fertilizer hoppers used on othei IH planteis A 30 pound capacity fibei glass icinfoiced plastic seed hopper is standard equipment on the new plantei A 70 pound capacity veision, so compactly designed it can be used on 28 inch planting lows, is available on an optional basis Both hoppeis have snap on lids which piotect seed NEW HOLLAND 354-2146 QUARBYVILLE 786-2126 Lancaster Farming, Saturday, September 12, 1964 corn from moisture. The lids also keep the seeds in when the hopper is removed to check or change the seed plate in its base. MFG-molded hoppers offer several significant advantages beyond the translucency Their corrosion resistance, for ex ample, is a critical need in fertilizer hoppers In addition, molded fiber glass hoppers are lust and dent proof, resistant to abrasion, unaffected by temperature exti ernes and light in weight Because MFG produces them by matched metal die molding, they are seamless and piovide slide smooth sui faces inside as well as out important to the free flow of seed oi ferlihzei Paits made by this molding method are exceptionally stiong and confoim to close dimensional tolerances Final ly the uiggedness of MFG molded hoppers promises lengthy seivice life with a minimum of maintenance un dei all weather conditions SENIOR EXTENSION CLUB TO HOLD FIELD DAY The Lancaster County Sen ior Extension Club will hold its 3rd annual Field Day at Mt Joy Community Park on Sunday, September 13 Softball and volleyball games will begin at 3 pm with neighboring county clubs join ing in the- competition Supper will be provided by the lefieshment committee A short business meeting will be held followed by a few skits The Rev Knk A Hudson, nimistei of the Highland Pres byterian Church, Lancaster will speak at the vesper seivice which will conclude the ac tivities A special invitation is ex tended to all young people be tween the ages of 18 and 30 to attend this event as well as all former club members .« THIRTY YEARS v y y FARM V BUREAU SERVICE TO FARMEi.3 W POCKMAN ADDS NEW ‘ VENTILATION SYSTEM FOR. ENVIRONMENT CONTROL In order to provide the pcultij industry with the two different principles of ventila tion commonly used in High Bird Density Controlled Environmental Houses, the Pockman Manufacturing Com pany has announced the ad dition of the Coolair Ventila tion System to its line Unlike other existing ex haust tvpe systems in which wall fans pull the air from one side of the building and exhaust it at the points of the fans Coolair exhausts through the ceiling and intro duces an tlnough slots locat ed in the cncumfeience of the building In addition Coolair has been leseaiched to provide one of the increasingly im portant factois in the poultry industiy light control. 'lt has been specifically de signed to fit into windowless houses which ai e adaptable to a lighting piogiam. FOR ACCURACY IN FERTILIZING and SEEDING Choose JOHN DEERE “LF” 8-10-12 ft. sizes Fertilizer Distributors also available “300” Spin Spreaders spreads up to 55 ft. wide FB-B Fertilizer Grain Drills FINANCE JOHN DEERE CREDIT PLAN Shotzberger's Elm M. S. Yeorsley & Sons West Chester 699.2990 Alan Beyer Christiana LY 3-5887 Wenger Implement Co. Buck Landis Bros. Inc. Lancaster 393-3908 A. B. C. Groff, Inc. New Holland 354-800] H. S. Newcomer A Son Mt. Joy 603-£?6l 5 665-3141 BU 44467