mplex is raised in Lancaster Co. '4B Q the pens in the gestation rooms. These woven floors allow manure to drop down into pits which are flushed out continuously. Middle Creek’s manure system is the first ot its kind to be installed in a farrowing operation in the East, noted Horst. The Lissco system incorporates an aerated lagoon with a solids separator. Manure collected in the pits is flushed to the separator where the solids are extracted and the waste water is piped out to the lagoon. The solids will be fed to beef cattle in a corporation member’s feedlot, according to Hofst who claims it "comes out like silage.” "The manure from the separator is 70 percent moisture. This manure either has to be dried or used within 40 horn's. We plan to feed it at 70 percent moisture and add nutrients and protein to the cattle’s diets,” he said, noting an analysis of ‘wastage’ measured 14 percent protein. l-,) The waste water tbat is stored in tbe lagoon will See Your ’ Agri Builder : For Details These Buildings Engineered lor Self Erection (Butler will furnish Erection and Foundation Drawings) climate control inside Uie building. The total cost ot the building per sow figures out to about $1,500, and the manure system equipment costs come to roughly $20,000. At lull capacity, this new complex will provide about 0,000 Dekalb crossbred swine with a modern home in Lancaster County. QO ojo IN STOCK FOR IMMEDIATE DELIVERY 1818 GRAIN BIN - 4173 Bushel Capacity LESSTHAN *22oo°° F. 0.8. Cash and Carry* IN STOCK TOR IMMEDIA 2718 GRAIN BIN - 9872 Bushel Capacity LESS THAN *4ooo°* TRI-COUNTY AGRI-SYSTEMS R.D.fl, Box 55 Swedesboro, NJ 08085 PH: 609-467-3174 WALTER J. KELLER BUILDING CONSTRUCTION SYSTEMS INC. -RDl£ox4o3J R.D. 1 Box 203 Strasburg, Pa. 17579 Lewisburg, PA 17837 PH: 717-687-8681 PH. 717-524 0568 AMES, la. Adequate protection against brucellosis in cattle, a disease causing abortion and reduced milk production, can be produced with a substantially reduced dosage of Strain 19 vac cine, Science and Education Ad ministration research indicates. Billy L. Deyoe, SEA veterinary medical officer, found that vaccine doses of 100 million to 10 billion F. 0.8. Cash and Carry WEETER CONCRETE RIGGS ENTERPRISES j CONSTRUCTION Box 98 | P.O. Drawer V Boswell, PA 15531 j Knox. PA 16232 PH 814-629-5621 | PH.814-797-5122 I Strain 19 vaccine provides sufficient brucellosis protection Deyoe, veterinary medical of ficer Terrance A. Dorsey, and technicians Kathryn A. Meredith and Linda A. Garrett compared results with dosages of 10 million, 100 million, 1 billion, 10 billion, and the former standard rate of 90 billion bacteria. They vaccinated 106 beef hgifers as yearlings and 106 Angus-Hereford heifers as 4- to 6-mpnth-old calves. After vaccination, the heifers were tested for false positive reactions in diagnostic tests for brucellosis. False positive reac tions may cause vaccinated animals to be classified as possibly diseased, which may lead to their slaughter The intensity and duration of ■ false positive reactions were directly related to vaccine dosage levels, Deyoe says. E DELIVERY -QUILL I CONSTRUCTION CO. | P.O. Box 6269 Harrisburg, Pa. 17112 PH 717-545-7527 Lancaster Farming, Saturday, June 27,1981—A21 Brucella abortus bacteria provided sufficient protection against brucellosis Based on results of'the SEA studies the Department’s Animal and Plant Health Inspection Service and state animal-health regulatory agencies are altering their regulations to permit vac cination with 300 million to 3 billion bacteria instead of the average of 90 billion used previously. Bacteria from the or weakened Strain 19 are used in the vaccine. id heifers vaccinated as yearlings, the 10-million and 100- million dosages produced false positive reactions at 8 weeks after vaccination and thereafter, but the SPECIAL PRICED GRAIN BINS IN STOCK FOR IMMEDIATE DELIVERY 1518 Grain Bin, 2847 Bushel Capacity 2118 Grain Bin, 5776 Bushel Capacity 2418 Grain Bin, 7673 Bushel Capacity 3022 Grain Bin, 14,572 Bushel Capacity P.L HESS, BUTLER MFG. CO. Bov 337, Oxford, PA 19363 I’m interested in more information on Butler products □ Buildings u Bins □ Dryers □ Bufk-O-Matics Name Address County City Phone 1-, 10-, and 90-billion dosages produced consistent or in termittent reactions lasting until immunity was challenged at 8 months after vaccination. In heifers vaccinated as calves, only Id- and 90-billion dosages produced false positive reactions lasting as long as 12 weeks after vaccination, Deyoe says. All of the heifers vaccinated as calves tested negative when immunity was challenged at 15 months after .. vaccination. The heifers’ immunity to brucellosis was challenged by inoculating the heifers with virulent B, abortus bacteria. Levels of immunity produced by the various vaccine dosages dif fered according to the age of the heifers at vaccination, the researchers found. In yearling heifers, all vaccine dosages produced significant and indistinguishable levels of im munity. In heifers vaccinated as calves, higher dosages produced higher levels of immunity. The 90- billion and 10-bilhon dosages gave maximum immunity, the 1-bilhon and 100-million dosages gave adequate immunity, and the 10- million dosage produced noticeable but less than adequate immunity. Deyoe says that ideally, dif ferent dosages should be given to calves and to yearlings and other animals. Practical considerations may, however, dictate a com promise intermediate dosage for all ages. BUTLER AGRI-BUILDER Itate.