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Volume 43 (1981)
- Issue 6 Pages 797-
- Issue 5 Pages 637-
- Issue 4 Pages 459-
- Issue 3 Pages 299-
- Issue 2 Pages 169-
- Issue 1 Pages 1-
Volume 43, Issue 4
Displaying 1-14 of 14 articles from this issue
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Shuji YAMANO1981 Volume 43 Issue 4 Pages 459-465,468
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESSThe development of the corpus vasculate paracloacale (CVP) was described in the male chick embryo. The beginning of formation of the organ was indicated by an accumulation of mesenchymal cells accompanying blood vessels and nerves on the seventh day of incubation. Three stages were distinguished: The first stage extended from the seventh to eighth day of incubation when the primordium, which was a mass of mesenchymal cells, continued to increase in size without differentiation of lymphatic vessels. The second stage was observed from the ninth to twelfth day of incubation when blood vessels were formed earlier and lymphatic spaces a little later. In the third stage, or on and after the fourteenth day of incubation, the formation of capillary cords began, accompanied with the development of internal lymphatic spaces. The components of the CVP, including capsule, trabecula, capillary cord, and peripheral and internal lymphatic spaces, developed by the sixteenth day of incubation.View full abstractDownload PDF (1690K) -
Tadao SERIKAWA, Takehiko MURAGUCHI, Junzo YAMADA, Hiroshi TAKADA1981 Volume 43 Issue 4 Pages 469-480
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESSFour adult male beagle dogs were inoculated orally with 3.2×108 Brucella canis. Agglutination of spermatozoa, head-to-head type, was found in the urine from the 11th to 19th week after the inoculation. Similar spermagglutination was observed in flush out fluids from the epididymal channel of 2 dogs at autopsy. Spermagglutinating activity was detected in sera by the Shulman's capillary tube method. The duration and strength of the agglutinating activity varied by dogs. The activity was also detected in extracts of testis and epididymis and in a flush out fluid from the epididymal channel of one dog. Fractionation experiments by gel filtration using Sephadex G-200 and preparative zone electrophoresis of the sera and the extracts showed that the spermagglutinating activity resided in immunoglobulin fractions. The spermagglutinating activity was not due to the agglutinating antibody to B. canis antigen and was heat stable at 56°C for 30 min. These results suggest that the spermagglutination might be caused by the anti-sperm autoanti-body. It was proposed that the spermagglutination might be a part of various causes of infertility of male dogs due to infection with B. canis.View full abstractDownload PDF (1281K) -
Masayuki NAKAMURA, Haruo YOSHIMURA, Tetsuo KOEDA, Shizuo SATO1981 Volume 43 Issue 4 Pages 481-490
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESSFluctuations of drug-resistant Escherichia coli strains were investigated in five groups of chickens. The colonizing ability of resistant E. coli strains isolated from fluff of hatchers and the cloacae of day-old chicks before feeding was also investigated by typing of O-antigen. E. coli strains were isolated from the cloacae of chickens at regular intervals up to about 50 days after hatching. These chickens were fed on diets devoid of antibiotic supplementation and resistant E. coli strains. These strains were isolated from the cloacae of all day-old chicks before feeding and from fluff of hatchers at high frequencies. Some of them had conjugative R plasmids. Moreover, most of the resistance patterns and serovars of E. coli strains isolated from fluff were identical with those of E. coli strains isolated from day-old chicks before feeding and such strains were found in about a half of the E. coli strains isolated from chicken throughout the experiment. On the other hand, the resistance patterns and serovars of the E. coli strains isolated from day-old chicks before feeding varied with the source of chicks. Fluctuations of resistance patterns and serovars of E. coli strains and those of conjugative R plasmid-carrying strains also varied with the source of chicks. Resistant E. coli strains hardly decreased in any experimental group throughout the experiment.View full abstractDownload PDF (1042K) -
Shunsuke YACHIDA, Shigemi AOYAMA, Naoji TAKAHASHI, Kazunari SAWAGUCHI, ...1981 Volume 43 Issue 4 Pages 491-497,500
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESSComparison was made on effects among three avian respiratory viruses of known virulence in vivo, infectious bronchitis virus (IBV), Newcastle disease virus (NDV) and infectious laryngotracheitis virus (ILTV), on the ciliostasis patterns of tracheal organ cultures (OC) and the lethality patterns of chick embryos. A field isolate and a vaccine IBV which had caused rare and irregular lethality in chick embryos produced regularly ciliostasis in OC, but avirulent IBV with high pathogenicity for the embryos did not. The vaccine and virulent strains of NDV exhibited essentially the same pattern of ciliostasis with different patterns of lethality in the embryos. A low level of ciliostasis was presented by a vaccine ILTV, but not by a virulent ILTV. The results of comparative titration of the three respiratory viruses performed in OC, chick embryos and cell cultures showed that 0C were advantageous especially for the assay of IBV not adapted to chick embryos.View full abstractDownload PDF (763K) -
Takanori OOKAWA, Noboru KUBA1981 Volume 43 Issue 4 Pages 501-507
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESSSeventy-six Warren baby chicks received orally 3% ammeline mixed in feed from 2 to 9 days of age after hatching, and the other 32 birds served as controls. The electroretinogram (ERG) was recorded under white flash (20 Joule) stimulation. Retinal histology was examined in control and affected birds. We classified the degree of the injury by the ERG pattern after the administration of 3% ammeline into seven stages according to the time course. A normal ERG pattern consisted of the a-, b- and c-waves with 90-30O μV (stage I). The a- and c-waves decreased with amplitude within 24 hours (stage II). While the c-wave disappeared completely at 30 hours after the administration (stage III), the b-wave disappeared at 48 hours (stage IV). The a-wave decreased in amplitude suddenly at 48 hours (stage V). Within 48 to 72 hours, a slow positive potential with 10-50μV was recognized (stage VI). Then, the visual potentials disappeared completely at 96 hours in all birds tested (stage VII). Considerable histo-pathological changes in the pigment epithelium layer and photoreceptor cells were detected in the retina of the stage V ERG and remarkable degeneration became evident in the retina exhibiting the Stage VI and VII ERGs.View full abstractDownload PDF (1134K) -
Akio SATO, Toshinobu KOGA, Makoto INOUE, Naoaki GOTO1981 Volume 43 Issue 4 Pages 509-515,519
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESSIn 49 of 88 swans and other Anatidae autopsied were diagnosed as amyloidosis histopathologically. The affection tend to occur in older birds and irrespective of sex and breeding place. Amyloid deposition was seen in the liver, spleen, kidney, pancreas, heart, thyroid, adrenal and gastrointestinal tract. In the spleen, massive deposition of amyloid was attended with multiple necrotic foci and heterophilic infiltration. In the kidney the glomeruli and renal tubules were degenerate or disappeared due to amyloid infiltration. The thyroid and adrenals were often extensively affected leaving little normal structure. In some cases there were associations of enteritis, airsacculitis, peritonitis, gout or bumble foot, but it remains unclear whether amyloidosis was a sequence of those diseases.View full abstractDownload PDF (2212K) -
Manabu OGATA, Hitoshi KOTANI, Kaoru KOSHIMIZU, Teruo MAGARIBUCHI1981 Volume 43 Issue 4 Pages 521-529
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESSDuring 1973 through 1980, a survey was conducted to isolate ureaplasmas from the various sites of 306 apparently healthy nonhuman primates belonging to 8 species in 5 genera under 3 families: 9 common squirrel monkeys (Saimiri sciurea), 9 green monkeys (Cercopithecus aethiops), 164 cynomolgus monkeys (Macaca fascicularis), 10 rhesus monkeys (Macaca mulata), 53 Japanese monkeys (Macaca fuscata), 1 orangutan (Pongo Pygmaeus), 2 gorillas (Pan gorilla) and 58 chimpanzees (Pan troglodytes). Ureaplasmas were isolated from the nasal and oral cavities of common squirrel monkeys, and from the nasal cavity, oral cavity, rectum and prepuce of green monkeys. The organisms, furthermore, were less frequently isolated from the nasal cavity, oral cavity, rectum and prepuce of cynomolgus monkeys, and from the nasal cavity of chimpanzees. None of the organisms was recovered from the other simian species. In serological studies by the growth inhibition and metabolism inhibition tests, Ureaplasma strains of simian origins were found to be antigenically heterogeneous and divided into 4 distinguishable serogroups in accordance with the families in the zoological classification of nonhuman primates, Callithricidae, Cebidae, Cercopithecidae and Pongidae, respectively. The simian Ureaplasma strains were known to be antigenically different from bovine, caprine, ovine, canine, feline and avian ones, although there were common antigens between the Ureaplasma serogroup derived from the family Cercopithecidae and some serovars of Ureaplasma urealyticum.View full abstractDownload PDF (765K) -
Kiyoaki SATSUTA, Yasuhiro ENDO, Kanki UEYONAHARA, Hitoshi HOSHINA, Tom ...1981 Volume 43 Issue 4 Pages 531-538
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESSSerum samples were collected from swine and human beings in various parts of Japan during a period from July, 1975, to September, 1979. They were examined for HI antibody titer against the A/NJ/8/76 (Hsw1N1) strain of influenza virus to study an epidemic prevalence of influenza virus of swine type among both hosts. The following results were obtained. 1) There was a remarkable regional difference in the prevalence of the A/NJ/8/76 strain among the swine. 2) It was suggested that there might be a seasonal variation in the occurrence of the epizootic among swine. 3) In about 9 per cent of the slaughterhouse employees examined, the primary infection with the virus was strongly indicated. These results suggest that the epidemic may continue further among swine. Then the behavior of the virus among human beings should be kept under surveillance with serological examination particularly on slaughterhouse employees.View full abstractDownload PDF (793K) -
Masaaki TAMURA, Tsuneyuki OKU, Kunitoshi SUGIURA1981 Volume 43 Issue 4 Pages 539-551
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESSTwo different calcium-binding proteins (mCaBP-3 and mCaBP-4) were purified from bovine milk, and the physicochemical and immunological properties were characterized. The properties of these proteins were compared with those of vitamin D-dependent CaBP in bovine intestinal mucosa. Both purified mCaBP-3 and mCaBP-4indicated a single band with 0.73 of electrophoretic mobility in 7.5% polyacrylamide gel disc electrophoresis. The mobility decreased dramatically when the proteins were bound to Ca ion. The molecular weights of two mCaBPs were the same, and were estimated to be approximately 15, 000 by both gel filtration and SDS-polyacrylamide gel disc electrophoresis. In the saturation analysis to replace 45Ca binding with unlabeled Ca, both mCaBPs showed two binding sites against Ca; a low capacity site (n=1) with high affinity (Kd≑4×10<-6>M) and a high capacity site (n=4∼5) with low affinity (Kd≑1.5×10<-4>M), respectively. The binding affinity of various divalent cations to the binding sites was in the order of Ca»SrZnCdMnMg. This indicates the two CaBPs in bovine milk bind to Ca specifically. Furthermore, mCaBP-3 and mCaBP-4 demonstrated an immunological identity by the double diffusion method using rabbit anti-mCaBP-3 antiserum. The mCaBP-3 did not immunologically cross-react with the bovine crude CaBP of intestinal mucosa. From these results, it was clearly demonstrated that bovine milk includes CaBPs which are similar to vitamine D-dependent CaBP in their physicochemical properties. These milk CaBPs were, however, different from the bovine intestinal CaBP.View full abstractDownload PDF (1382K) -
Makoto SUGIMURA, Yoshitaka SUZUKI, Shinji KAMIYA, Tatsuo FUJITA1981 Volume 43 Issue 4 Pages 553-555
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESS -
Katsuya HIRAI, Teruo YAMASHITA, Hideyuki SAWA, Seigo SHIMAKURA, Toshia ...1981 Volume 43 Issue 4 Pages 557-559
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESS -
Teruo YAMASHITA, Katsuya HIRAI1981 Volume 43 Issue 4 Pages 561-563
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESS -
Masanobu KAMADA, Yutaka AKIYAMA, Takanori ODA, Yoshikazu FUKUZAWA1981 Volume 43 Issue 4 Pages 565-568
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESS -
Yoshio FUKUNAGA, Takeshi KUMANOMIDO, Hiroshi IMAGAWA, Yasumasa ANDO, M ...1981 Volume 43 Issue 4 Pages 569-572
Published: August 25, 1981
Released on J-STAGE: February 13, 2008
JOURNAL FREE ACCESS
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