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Volume 35, Issue 5
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[in Japanese]1982 Volume 35 Issue 5 Pages 265-270
Published: May 20, 1982
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSDownload PDF (1167K) -
YASUMASA YANO, [in Japanese], [in Japanese], [in Japanese], [in Japane ...1982 Volume 35 Issue 5 Pages 273-277
Published: May 20, 1982
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSIn 1979, a collective outbreak of bovine actinobacillosis-like disease was observed in Koyu-gun, Miyazaki-ken. It involved 181 Japanese Black cattle (2.4% morbidity) and 10 Holstein-Friesians (0.3% morbidity). There was no seasonal variation in its occurrence.
Clinically, firm swelling and abscesses developed in the parotic, submaxillary, buccal or muzzle regions.
Histopathologically, the abscesses were characteristic of actinobacillosis. Actinobacillus lignieresii was not isolated, however, in 25 cases examined bacteriologically. The disease was treated successfully by intramuscular injection of penicillin or streptomycin with or without excision of abscesses for drainage.View full abstractDownload PDF (4929K) -
IV. Survey on BLV Antibodies of Cattle in O Town, East HokkaidoSHIGERU ICHIJO, [in Japanese], [in Japanese], [in Japanese], [in Japan ...1982 Volume 35 Issue 5 Pages 277-280
Published: May 20, 1982
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSIn O Town in the eastern part of Hokkaido, 6 cases of bovine leukosis (BL) occurred over a 5-year period from 1975 to 1979. They consisted of 4 cases of adult type and one case each of thymic and calf type.
Those cases, except one, of adult type were originated from farm T. A seroepidemiological survey was carried out on 395 cattle on 27 dairy farms in O Town for detection of BLV antibodies.
These antibodies were positive in 62.5% and 33.3% of the cattle on farms T and Su, respectively, where BL of adult type had occurred. Because the 3 cattle affected with the adult type on farm T were descendants of an animal imported in 1968, it was presumed that BLV might have been trans-mitted vertically from this animal to them and then horizontally from them to other cattle in the same barn. Antibody-positive cattle were detected from 4 of 7 farms where imported cattle were kept, corresponding to 18.8%(11 of 60 head). On 13 farms which had never kept imported cattle and 5 farms adjacent to farm T, the antibody-positive rate was 0% and 3.6%, respectively.
It was suggested that horizontal transmission in the barn might be an important mode of infection of BL.View full abstractDownload PDF (584K) -
TSUTOMU OHGI, Y. MAETA, S. ITO1982 Volume 35 Issue 5 Pages 283-287
Published: May 20, 1982
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSFor a month before grazing, wethers (group 1) and ewes (group 3) were given appropriate feed, and other wethers (group 2) only 0.6kg/head/day of hay. An orchardgrass ward was divided into four blocks according to the amounts of N and K2O fertilizers applied. Block I: 20kg/ha N and 20 kg/ha K2O, II: 20 and 120 III: 80 and 20, and IV: 80 and 120. The pasturing period was about 2 weeks in early spring.
In herbage, the average N content was over 5% DM in blocks III and IV, the Mg content about 0.16% DM in blocks I, II and IV, the average K content over 4% DM in blocks II and IV, and the maximum K/Ca + Mg mEq 6.32 in block II. Two or three days after pasturing began, the concentration of serum Mg decreased by 3 to 17% in group 1, by 39 to 48% in group 2 and 12 to 32% in group 3, as compared with the prepasture level. Of the 20 wethers of group 2, twelve had under 1 mg/dl of serum Mg, but showed no symptoms of tetany.
There were no significant differences in the decrease in amount of serum Mg among the sheep of the same group grazing in the four blocks. The condition of sheep before pasturing and lactation seemed to be a more important factor than the contents of herbage for the decrease in serum Mg in sheep grazing on early spring pasture.View full abstractDownload PDF (638K) -
TATSUYUKI SUZUKI, Y. TAKAHASHI, I. SHIMOHIRA1982 Volume 35 Issue 5 Pages 288-292
Published: May 20, 1982
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSFive cows in estrus and 8 cows in the luteal phase were inoculated with Corynebacterium hofmannii into the uterine horn. Then 48 hours later, flushing fluid was collected from the uterine lumen by uterine irrigation.
C. hofmannii in 4 cases and pyometritis in 5 cases were detected in the uterine flushing fluid in the luteal-phase. No symptoms of pyometritis and bacteriological infection were detected in estrus.
From the sediment of flushing fluid, epithelial cells were detected in estrus, and epithelial and polymorphonuclear cells in the lutealphase.View full abstractDownload PDF (7082K) -
I. Observation on 15 Affected Flocks in Aichi PrefectureMITSUAKI GOHDA, SHOGO YOSHIMURA, YOSHIHARU ODAGIRI1982 Volume 35 Issue 5 Pages 295-300
Published: May 20, 1982
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSFifteen outbreaks of inclusion body hepatitis (IBH) were observed in chickens in Aichi Prefecture over a period from January, 1974 to November, 1977. IBH often occurred on the same farms, but it rarely broke out successively.
Affected chickens were found dead without precursive signs, except a few which showed depression, diarrhea and/or anemia.
The occurrence started at 30 to 39 days of age and lasted for 3 to 20 days. The fatality varied from 0.3 to 28%.
Intranuclear inclusion bodies in the liver were detected in 78 of chickens 122 affected. Avian adenovirus was isolated from 35 of 87 chickens examined. The rate of virus isolation was higher in the livers with intranuclear inclusion bodies than in those without them.
There were atrophic changes of the bursa of Fabricius (98%) and thymus (44%) and discoloration of the bone marrow (42%) in the affected chickens. Escherichia coli was isolated from the visceral organs of 56 of 110 chickens. These pathological and bacteriological findings were not related to the detection of inclusion bodies from the liver.View full abstractDownload PDF (860K) -
BUNGO SAITO, [in Japanese], [in Japanese], [in Japanese], [in Japanese ...1982 Volume 35 Issue 5 Pages 301-304
Published: May 20, 1982
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSTwo methods of hemolysis test with hydrogen peroxide (one devised by Ikehata et al. and the other modified by the present authors) were evaluated to estimate the concentration of vitamin E (VE) in swine serum.
In experiment 1, 25 blood samples were obtained from 9 gilts fed a VE-poor, VE-rich or ordinary diet for about 1-3 months. When estimated by the method of Ikehata et al., the hemolysis rate averaged 58%, ranging from 3 to 93%, in them. The serum concentration of VE as α-tocopherol in the same samples was determined by the method of Abe and Katsui with high speed liquid chromatography. It averaged 0.18mg/dl, ranging from 0.03 to 0.52 mg/dl. There was a highly significant negative correlation between the hemolysis rate (X) and the VE level (Y) in these samples (Y=-0.005X+ 0.464, r=-0.93, P<0.01).
In experiment 2, 10 blood samples were collected in heparinized vacuum tubes from 8 gilts fed diets at different VE levels for 5-14 months. In them, the hemolysis rate by the method of Ikehata et al.(X) and that by the authors' modified method (Y) almost coincided with each other. A highly significant correlation was observed between them (Y=0.995X+0.98, r=0.995, P<0.01).
In conclusion, the modified method seemed to be simpler and more effective than the original one for the screening test of VE deficiency in swine.View full abstractDownload PDF (553K) -
SANENORI NAKAMA, [in Japanese], [in Japanese], [in Japanese], [in Japa ...1982 Volume 35 Issue 5 Pages 307-310
Published: May 20, 1982
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSFive dogs suffered from hind leg paralysis caused by the intervertebral disk protrusion in the thoraco-lumbar area. They were treated by LEONARD'S ventral fenestration. All of them were able to walk 13 to 88 days after treatment and showed a good recovery 3 to 16 months later without recurrence.View full abstractDownload PDF (7428K)
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