. Diseases of domesticated birds. Poultry; Poultry; Birds. BACILLAEY WHITE DIARRHEA 79. acid is added in sufficient quantity to form a .5 per cent solution for preserving purposes. In the earlier experiments of the authors, the product was passed through a Berkefeld filter and concentrated to onc-tonth of its original volume. Later it was found that the original sterilized product concentrated to Vs its volume gave as satisfactory results. The material is injected into either wattle of the fowl in the amount of approximately .2 .^a^^?'?'*!;" The injection is made with a hypodermic sy
. Diseases of domesticated birds. Poultry; Poultry; Birds. BACILLAEY WHITE DIARRHEA 79. acid is added in sufficient quantity to form a .5 per cent solution for preserving purposes. In the earlier experiments of the authors, the product was passed through a Berkefeld filter and concentrated to onc-tonth of its original volume. Later it was found that the original sterilized product concentrated to Vs its volume gave as satisfactory results. The material is injected into either wattle of the fowl in the amount of approximately .2 .^a^^?'?'*!;" The injection is made with a hypodermic syringe graduated in tenths of a , and a needle of fine caliber is used to avoid causing traumatic swellings. The injection is made at a point near the lower border of the wattle. Where the flock is apparently free of infec- tious disease, no disinfect- ants are employed at the point of injection since the natural resistance of birds to ordinary wound infection is sufficient to giiard against infection. In the ab- sence of a graduated syringe, the amount to be injected may be gauged by injecting enough to cause a perceptible swelling at the point of inoculation. During the first three hours after injection the wattle shows an edematous condition which rapidly disappears in non-reacting birds. Ecadings are taken at twenty-four to thirty hours after injection. The wattle may be swollen to several times its natural thickness and may be readily observed at a distance, or the swelling may be so slight that palpation, or comparison with the uninjected wattle will be necessary. Any swelling other than that due to traumatism as a result of faulty technique, should be consid- ered significant. REFERENCES ^ of the intestines in young chicks infected with bacterium pullorum. J. Med. Besearch, Vol. 34, 191G, p. 149. 3. Gage and Hyland. On the diagnosis of infection with bacterium. Please note that these images are extracted from scanned page images that may have been digitally enhanced fo
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