Journal of the Japan Veterinary Medical Association
Online ISSN : 2186-0211
Print ISSN : 0446-6454
ISSN-L : 0446-6454
Volume 14 , Issue 3
Showing 1-12 articles out of 12 articles from the selected issue
  • Y. Tanaka
    1961 Volume 14 Issue 3 Pages 83-87
    Published: March 20, 1961
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    “Tympanitescausedbygrassfeeding, ” whichis annoying the countries advanced in grassland agriculture, has come to be prevalent gradually in Japan, constituting an important problem in dairy farming.
    The author studied 31 cases of this disease which had occurred in the Nagano Breeding Livestock Farm, Ministry of Agriculture and Forestry, from 1955 to 1959.The results obtained are summarized as follows.
    1) Almost all cases of tympanites caused by grazing at pastures where only grasses of the fa-mily Leguminosae, especially Ladino clover, grow, or where Ladino clover and rye grass or orchard grass grow, or otherwise by sudden changing of feed to grasses of the family Cruciferae from other Kind, or overfeeding with these species of grass, were acute with numberless fine bubbles formed in the lumen.
    2) This type of tympanites occurred in a larger number in animals grazing on pasture grass grown from sowing in the preceding year than in those on pasture grass grown from sowing in the current year, as was reported by Dougherty (1953) from his statistical observation in the United States.
    It attacked repeatedly the same animals which had a history of this disease, as was observed by Barrentine (1956) in his experiments on artificial inducement.
    3) In the treatment of this disease, it is impossible to remove the gas by means of a catheter or mantled needle.A fatal termination is effected when it is too late to find and treat a case. Almost all cases recover in a relatively short period of time, if they are found early, protected from falling down, and treated appropriately with silicon preparation and others 4) Most investigators have asserted that the increased pressure inside the stomach caused by gas accumulation exerts pressure upon the thoracic aorta and its branches and that the resulting disturbances in the blood circulation and respiration bring about death by suffocation.
    In two animals which died without treatment in the present study, however, death by suffocation was caused by infarction in the upper portion of the esophagus which had been produced by the chyme turned back from the lumen at the time of falling down of the animals.
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  • M. Miyazawa
    1961 Volume 14 Issue 3 Pages 87-91
    Published: March 20, 1961
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    The term of habitual suprapatellar dislocation has been used to indicate the disturbance of full extension of the thigh and leg and flexible bending of the posterior extremities occurring in young cattle and horses. This ailment was studied roentgenologically and anatomically. In addition, experiments were carried out to induce it artificially. In affected animals examined, no suprapatellar dislocation was detected at all, but the shortened medial perpendicular ligament of the patella had been displaced to the anterior surface of the trochlea of the patella on account of a strong attraction caused by the contraction of the quadriceps femoris muscle. Such being the case, it is considered reasonable to call this situation habitual vertical patellar dislocation.
    The syndesmotomy of the medial perpendicular ligament of the patella has been regarded to be of great curative effect on this ailment, but has not been generally performed due to the contradictory terminology and obscure pathognomy of the ailment.
    After this ligament is cut, its function is compensated by those of the lateral and intermediate perpendicular ligaments of the patella. The animal can walk immediately after operation. The cut ligament is transformed into cartilaginoid tissue in twenty to thirty days and a firm accretion occurs to it.
    Since the author treated 58 limbs successfully, he is convinced that the syndesmotomy mentioned above is a radically curative plastic surgical operation causing no danger in work animals.
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  • [in Japanese], [in Japanese]
    1961 Volume 14 Issue 3 Pages 92-96
    Published: March 20, 1961
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    Metastrongylosis has been causing a great loss in hog husbandry in Japan. Its prevention and treatment, however, have been neglected so far.
    Recently some papers have been published on the results of experimental treatment of this disease with various agents. Although some of the agents examined are mentioned in them as effective for treatment, no satisfactory results have been obtained as yet.
    The present study was conducted to reaffirm the efficacy of such agents as employed hitherto in successful treatment and carry out screening of other agents for curative effectiveness. The experimental animals used were guinea pigs which were on the 14th day after they had been infected art-ificially with Metastrongylus elongatus. Alsanilic acid (AA), acetylcyanacethydrazide (ACAH), cyanacethydrazide (CAH), diethylcarbamazide (DC), dihydrostreptomycinsulfate (DSS), and isonicotinic acid hydrazide (INH) were examined for therapeutic effect.
    A CAH product synthetized in Japan was not effective when a dose of 30mg/kg had been administered for three consecutive days by the subcutaneous route. A dose of 40mg/kg of CAH administered in the same manner gave a rate of parasite removal of 26 per cent. Two courses of treatment with a dose of 40mg/kg of CAH administered in the same manner showed a rate of removal of 74 per cent. A dose of 50mg/kg of CAH administered in the same manner exhibited a rate of removal of 53 per cent.
    ACAH was prepared from CAH by introducing an acetyl group into the latter so that the toxicity of CAH might be weakened, when administered by the subcutaneous route for three consecutive days, a dose of 30mg/kg showed a rate of parasite removal of 45 per cent and a dose of 40 mg/kg a rate of 86 per cent. Two courses of treatment with a dose of 40mg/kg administered in the same manner gave a rate of 51 per cent.
    DC (supatonin, a proprietary preparation) exhibited rates of parasite removal of 86 and 92 per cent when administered in a dose of 50mg/kg by the intramuscular route for five and ten consecutive days, respectively. It gave rates of 97 and 99 per cent when administered in a dose of 100mg/kg by the same route as above for five and ten days, respectively. A result of 100 per cent removal was obtained from a simultaneous treatment with DC and CAH.
    INH showed a rate of 74 per cent when a dose of 5 mg/kg had been given by the intramuscular route for three consecutive days, and a rate of 49 per cent when a dose of 20mg/kg had been given by the same route for ten consecutive days. DSS exhibited a rate of 32 per cent when administered in a dose of 40mg/kg by the intramuscular route for ten consecutive days. AA showed a rate of 75 per cent when administered per os in a dose of 5mg per capita for ten consecutive days, and a rate of 61 per cent when administered per os in a dose of 10mg per capita for five consecutive days.
    Moreover, AA caused fatal intoxication among mice treated with it. In conclusion, CAH and ACAH exhibited variable and not so excellent effects. The other agents employed, gave similar results. DC, an antifilarial agent which the authors used for the first time to remove swine lung worms, showed a constant and outstanding effect.
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  • [in Japanese]
    1961 Volume 14 Issue 3 Pages 97a-99
    Published: March 20, 1961
    Released: June 17, 2011
    JOURNALS FREE ACCESS
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  • [in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
    1961 Volume 14 Issue 3 Pages 97
    Published: March 20, 1961
    Released: June 17, 2011
    JOURNALS FREE ACCESS
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  • [in Japanese], [in Japanese], [in Japanese]
    1961 Volume 14 Issue 3 Pages 100-103
    Published: March 20, 1961
    Released: June 17, 2011
    JOURNALS FREE ACCESS
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  • [in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
    1961 Volume 14 Issue 3 Pages 103-107
    Published: March 20, 1961
    Released: June 17, 2011
    JOURNALS FREE ACCESS
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  • [in Japanese], [in Japanese], [in Japanese]
    1961 Volume 14 Issue 3 Pages 107-109
    Published: March 20, 1961
    Released: June 17, 2011
    JOURNALS FREE ACCESS
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  • [in Japanese], [in Japanese]
    1961 Volume 14 Issue 3 Pages 109-111
    Published: March 20, 1961
    Released: June 17, 2011
    JOURNALS FREE ACCESS
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  • [in Japanese], [in Japanese], [in Japanese]
    1961 Volume 14 Issue 3 Pages 111-112
    Published: March 20, 1961
    Released: June 17, 2011
    JOURNALS FREE ACCESS
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  • [in Japanese]
    1961 Volume 14 Issue 3 Pages 113-117
    Published: March 20, 1961
    Released: June 17, 2011
    JOURNALS FREE ACCESS
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  • [in Japanese]
    1961 Volume 14 Issue 3 Pages 118-121
    Published: March 20, 1961
    Released: June 17, 2011
    JOURNALS FREE ACCESS
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