“Pernet A, ” a permanent magnetic bar, is placed in the reticulum through the mouth for the prevention and treatment of traumatic gastritis, gastrophrenitis, pericarditis, and hepatitis and other diseases caused by the presence of metallic objects in the body. In principle, it is allowed to stay in the reticulum permanently. Experience shows that there have been no disturbances in cows with Pernet A in the stomach. It seems to be an ideal method to administer the magnetic bar to calves when they reached six months of age. Sometimes the magnetic bar attracts too many metallic pieces to display its magnetism. In such case, it must be taken out of the stomach and freed of those pieces. Then it can be inserted again into the stomach. The method of removing the magnetic bar from the stomach is described in the text in detail
Either sulfisomezole or sulfisomidine was administered orally to chickens at a dose of 100mg per kg of body weight. Then the concentration of each sulfonamide in the blood was determined. Sulfisomezole was especially studies for its distribution in the. organs. The results obtained are as follows 1) The concentration of sulfisomezole in the blood was significantly higher than that of sulfisomidine. 2) The former drug was distributed almost all organs in the body. It showed the lowest distribution level in the brain and the highest level both in the kidney and the crop. The other organs, i. e., the cecum, the muscle, the spleen, the proventriculus, the gizzard, the heart, the small intestine, the liver, the lung, and the trachea, were between these organs, so far as the distribution level is concerned.
1. A total of 317 serum samples were collected from apparently healthy hogs slaughtered at the Shibaura Slaughterhouse in Tokyo. Of them, 17 per cent gave positive complement fixation tests with a titer of at least 1: 8 after treatment with KIO4. About 80 per cent of these positive serum samples also gave positive dye teste with a titer of at least 1: 16. 2. Positive toxoplasmin intradermal tests were given by 7.7 per cent of 261 hogs slaughtered. Toxoplasma organisms were isolated in mice from 2 of 2 positive hogs and 2 of 43 negative hogs examined. 3. Epidemiological surveys were conducted on the workers of the same slaughterhouse in 1960 and 1961, by using the toxoplasmin intradermal test and dye test. As a result, positive toxoplasmin and dye tests were given by 67.8 and 59.1 per cent, respectively, in 1960 and 57.4 and 61.8 per cent in 1961. These surveys indicate that toxoplasmosis has been spread among swine in Japan to a considerably large extent and that swine play an important part in the transmission of this disease to man.