The Mulford Veterinary Bulletin Volume 4, No. 3

The Mulford Veterinary Bulletin Volume 4, No. 3

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: ... reactions, but upon subsequent retest one of them failed to react. This one was destroyed years after because of old age, and was found upon examination to be perfectly sound. She had reacted because she had not voided her placenta. The other animal had been in the herd four years and annually had passed the test; but not being a valuable animal she was killed and examined. Dr. C. J. Marshall could find no reason for the typical rise in temperature, except that the cow was of nervous temperament, and had recently been moved to the end of a section where strangers passed. He even took portions of gland from the different parts of the body. with which he injected guineapigs, and these at the proper time were killed and failed to show any signs of the disease. Had this cow been a valuable animal she would have been retested. The five cows that reacted were found to be but slightly affected and were not considered carriers of the disease. Nhy they did not react at previous tests was probably because the tubercles had become encysted or were in a state of incubation. To sum up, in the past twenty-one years over 1500 animals have been tested at Haddon Farms, with but seven reactions resulting. This low percentage of reactions was undoubtedly due to the careful and judicious testing by my ovn veterinarian of all animals coming to the farms, as well as those already on the farms. Two of the seven reacting failed, upon post-mortem examination, to show any trace of the disease. In other words, only two tests out of over 1500 failed to indicate properly the condition of the animals, as far as tuberculosis was concerned. The test has, of course, its limitations, since we cannot learn from reaction what progress the disease has made. Again, there are...
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Product details

  • Paperback | 380 pages
  • 189 x 246 x 20mm | 676g
  • United States
  • English
  • black & white illustrations
  • 1236813359
  • 9781236813350