The authors carried out treatment tests of so-called filarial dermatitis, or elephantiasis, with filaricidal drugs and comparative observation of some organic functions on 43 cases of dermatitis, 24 cases of filariasis, and 11 normal dogs and discussed the correlation between the skin lesions and Dirofilaria infection.The results obtained are summarized as follows. 1. No arsenic compound produced any beneficial effect. In a few cases, administration of antimony compound alone or treatment against both adults and microfilariae was somewhat effective. Recovery or reduction of skin condition, however, was very slow and any effect of such medication was not clarified. 2. With almost the same frequency of occurrece, insufficiency in the liver and kidney functionns was found both in filaria-infected cases and filaria- infected dermatitis cases. Such insufficient functions were always found in severe cases of skin lesions. 3. The QRZ (Quaddelresorptionszeit or the time for disappearance of wheal) was shortend in cases with the impaired liver and kidney. 4. It is, therefore, difficult to consider that the skin condition was caused by these secondary organic dysfunction as a result of dirofilaria infection. Some doubts exist as to the presence of direct relations between the skin lesions and filaria infection. 5. Anti-histamic preparation showed transitional beneficial results. It is thought that dermatitis brought about allergic conditions. 6. Hematological examination on dermatitis cases showed the presence of fiariasis, which was characterized by the increase of monocytes and eosinophils. 7. Positive epinephrin test was shown in two cases of dermatitis.
Semen quality tests were performed on 195 semen samples collected from 116 bulls consisting of 41 Holsteins and 75 Japanese natives, all of which had been in active service in main artificial insemination centers. As a result, it was found out that 56 bulls had secreted semen the quality of which was within a normal range of fluctuation and that the remaining sixty had produced semen of abnormal quality. 1. Of 124 samples derived from normal bulls, 18 per cent was less than 4ml. One half of the 18 per cent had been collected from bulls less than 3 years old. The average number of spermatozoa was more than one billion per ml. 2. The activity of spermatozoa, as determined by the capillary method, was variable depending upon the functions of the auxiliary sexual glands. The deformity rate of spermatozoa per specimen was within 12 per cent in 80 per cent of bulls examined. 3. The average amount of fructose per sample was 456.9±277.2mg/dl in 124 samples of normal semen. 4. Some bulls used for artificial insemination secreted semen the properties of which beyond a normal range of variation. Such abnormal conditions include a reduced amount of ejaculation, aspermia, lowered activity of spermatozoa, and increase in number of deformed spermatozoa. 5. Biopsy of the testis was helpful to determine whether a breeding difficulty was derived from some disorder in the hypophysis or in the testis itself. It is also useful to decide a method of treatment and make a prognosis.
The dairy cows and cattle on feeding experiment both of which had been kept in the Breeding stock Farm, Prefecture of Shizuoka, were examined for serum protein content. 1. Generally in dairy cows, serum protein content was increased with the advance in age. 2. The average serum protein content was 7.16±0.86g/dl in 89 dairy cows. It was 6.40±0.429/dl in nulliparous cows and 7.54±0.64g/dl in those which had ever calved. 3. A general tendency was observed that serum protein content was higher in cattle fed a highprotein ration than in those fed a low-protein ration.