The Japanese Journal of Veterinary Science
Online ISSN : 1881-1442
Print ISSN : 0021-5295
ISSN-L : 0021-5295
Volume 21, Issue 3
Displaying 1-8 of 8 articles from this issue
  • Eihyo RYU
    1959 Volume 21 Issue 3 Pages 133-138
    Published: June 30, 1959
    Released on J-STAGE: February 13, 2008
    JOURNAL FREE ACCESS
  • Kazuhiko ISHII
    1959 Volume 21 Issue 3 Pages 139-145
    Published: June 30, 1959
    Released on J-STAGE: February 13, 2008
    JOURNAL FREE ACCESS
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  • Keiji NAKANO, Shizuo KIZUKA, Namio SARUTA
    1959 Volume 21 Issue 3 Pages 147-152
    Published: June 30, 1959
    Released on J-STAGE: February 13, 2008
    JOURNAL FREE ACCESS
    In this experiment, while the freshness of meat was deteriorating, the quantity of acidic substance, basic substance and fatty acid was measured. The technique described in the second report of this study was used as the measuring method. The results were as follows: 1) In the same stages of deterioration the quantity of acidic substance, which was generated from three hours after the animals had died up to the time of incipient putrifaction, was found to be more in horse-flesh than in bcef. 2) During the deterioration of freshness, while the quantity of acidic substance was increasing, the quantity of basic substance was decreasing. On the contrary, when the latter was increasing, the former was decreasing. These phenomena were clear both before and after incipient putrifaction. 3) When the same materials were used, the quantity of acidic substance, basic substance, and fatty acid, that altered, were different according to the effectuation by the temperature. This is notable in the case of horse-fresh. 3) When the quantity of the basic substance is distinctly more than 180mg, and at the same time, the quantity of acidic substance becomes 1ess than 1.5 times as much as that of basic substance, beef and horse-flesh are supposed to be at the stage of incipient putrifaction.
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  • Masatomo GOTO
    1959 Volume 21 Issue 3 Pages 153-160_2
    Published: June 30, 1959
    Released on J-STAGE: February 13, 2008
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  • Yukio SATO
    1959 Volume 21 Issue 3 Pages 161-171_1
    Published: June 30, 1959
    Released on J-STAGE: February 13, 2008
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    1. According to VAN 0ORDT et al., the release of sperm cells took place in a hypotonic Ringer solution, but no spermiation was observed in a hypertonic Ringer solution. Similar results were obtained with water, hypo- and hypertonic saline solutions (Chart 1). 2. One of the testes of a frog was placed in a saline solution containing the spermiation causing agent, and the other one in a saline solution only, and tests in vitro, were carried out. An adenohypophysis of the frog in 2 cc of 0.645% saline solution caused a rapid in-increase in the testis' weight and spermiation, in the opposite testis, placed in 0.645% saline solution only, a negative result was obtained. 3. It is considered important that HCG and epinephrine in a slightly hypertonic saline solution, caused weight increase and spermiation, while the weight of the opposite testis of the same frog in a saline solution of the same concentration without such agents decreased, and no spermiation took place (Chart 2). 4. Seasonal variation of the fluid uptake by the testis was observed (Chart 3). Rapid spermiation occurred with a slight increase of the testis' weight during the breeding season, indicating that the testis had already taken up water from the surrounding blood capillaries under the stimulus of the endogenous spermiation causing factor which had probably been secreted from the "purple cells" of the adenohypophysis, as already reported. On the contrary, spermiation did not always occur in spite of the intense weight increase during the summer, -the period of sexual rest. This seasonal variation showed a parallel relation with that of the sensibility of the frog in vivo, as already reported. 5. Histamine caused no water uptake nor spermiation in a slightly hypotonic saline solution. 6. A bovine feces extract, after Banik's method, diluted four times with 0.909% saline, proved to be a little more hypertonic than 0.769% saline solution, and caused a slight water uptake, -sperm cells being released in a few cases when several tests were made in vitro. 7. Dibenamine, of 10-3 or 10-4 concentration, in an isotonic saline solution, inhibited the water uptake and the spermiation causing activity of epinephrine and HCG, in vitro, as reported in the case of the toad, by TAKAGI. 8. Vacuoles in the Sertoli Cells, and enlargement of the cytoplasm of these elements, were observed in the sections of the spermiated testes, as DE ROSERTIS et al. and VAN 0ORDT et al., reported. 9. Small eosinophilic granules were observed in the Sertoli cells of the spermiated testis by DE ROBERTIS et al. Eosinophilia of the interstitial tissue, and the cytoplasm of the Sertoli cells was observed in my observation while both structures remained rather basophilic after Carnoy's fixation, in the control testis. 10. RNA of the interstitial tissue and in the reacted tubules, decreased or disappeared in the spermiated testis. It is interesting that RNA was found in the interstitial connective tissue of the testes of the frog when it had not been found in the ordinary connective tissue. 11. Fluid uptake and spermiation, even in a slightly hypertonic saline solution containing HCG or epinephrine, as stated in 3, can not be explained by only the osmotic pressure. Hydrolysis of RNA in the interstitial tissue, and in the tubules, might be significant as one of the "chemical reactions" supposed to have taken place in the testis. Eosinophilia, observed in the interstitial tissue and Sertoli cells of the spermiated testis, might have resulted from the disintegration of ribonucleoprotein into RNA and eosinophilic proteins, such as protamine of histone. 12. [the rest omitted]
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  • Ryo YANAGAWA, Takashi HIRAMUNE, Takeshi SHIMIZU, Susumu ISHII
    1959 Volume 21 Issue 3 Pages 173-176
    Published: June 30, 1959
    Released on J-STAGE: February 13, 2008
    JOURNAL FREE ACCESS
    Attempts were made to inactivate the liquid medium of leptospira at high temperatures, such as 100°C and 121°C, after the addition of rabbit serum. The growth of leptospira was generally more increased in the media which were inactivated at 100°C or 121°C than in those which were inactivated at 56°C or not inactivated. The same phenomenon was observed in the medium to which was added horse, cattle and sheep serum, respectively. In the medium inactivated at 121°C, however, occasional poor growth or inhibition of leptospira was demonstrated.
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  • Nobuo MURASE, Kazuo SUZUKI, Tatsuo NAKAHARA
    1959 Volume 21 Issue 3 Pages 177-181
    Published: June 30, 1959
    Released on J-STAGE: February 13, 2008
    JOURNAL FREE ACCESS
    1. "Matsukawa" strain, the only avian strain isolated in Japan during the epizootic among ducks, was found to be serologically identical with a fish strain, "Sea bass-106", while all the swine strains showed no cross precipitation with it. 2. Out of the 17 avian strains received from the United States and Canada, 9 belonged to Group A, 5 to Group B and the remaining 3 possessed no specific antigenicity. 3. Out of the 9 strains isolated from the tonsils of healthy cattle by the authors, 4 belonged to Group B, 1 each to Groups C and D, and the other 2 showed no specific antigenicity. Also, the strain "601", isolated from a case of endocarditis by ROEMMELE of Germany, was identified as a Group B strain. 4. A human strain recovered from a case of erysipeloid was found to be a strain of of Group B. 5. An inference was made that the difference in the prevalence of fowl erysipelas in Japan and the United States and Canada might probably be due to the difference in the source of animal matter contained in the feed.
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  • Osamu YAGASAKI, Kazu TAKENO, Iwao YANAGIYA, Yoshimasa MORIO, Masami KA ...
    1959 Volume 21 Issue 3 Pages 183-190
    Published: June 30, 1959
    Released on J-STAGE: February 13, 2008
    JOURNAL FREE ACCESS
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