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H Hayashidani

Publications and source records attributed to H Hayashidani.

29 records · Page 2Linked to original sources
PubMed1992

Bacterial flora of the respiratory tracts in chickens with a particular reference to Lactobacillus species.

The effects of three different types of breeding such as isolator, floor, and cage breedings on the bacterial flora of the respiratory tracts (nasal cavity, tongue, pharygolarynx, trachea and air sac) in chickens were determined. Total viable bacterial numbers on the nasal mucus of chickens in the isolator breeding as control group (Group A) aged of 14 days were 10(4.6)/g of autopsy specimen (wet weight), 10(5.7)/g of sample in the cage breeding (Group B) aged of 28 days, and 10(7.0)/g of sample in the floor breeding (Group C) aged of 28 days. Staphylococci and micrococci were predominant bacteria in the nasal cavities of all groups. Total viable numbers of tongue and pharygolarynx were from 10(5.4) to 10(6.5)/g of autopsy specimen. Lactobacilli were the predominant bacteria in pharyngolarynx of chickens. The incidence of staphylococci and micrococci in trachea was lower than those in the another regions. Staphylococci and micrococci dominated in the air sacs of two groups (B and C), but the number and incidence of lactobacilli in the air sacs of chickens were lower than those in the another respiratory tracts. The only clostridia isolation in the air sacs of Group A was observed. A total of 75 strains of Lactobacillus species was isoalted from all respiratory organs and intestine of chickens. These strains were divided into 19 groups. Lactobacillus salivearius subsp. salivarius was the predominant lactobacilli isolated from tongue and pharyngolarynx. Most of isolates from the chicken intestines were mainly identified as the L. acidophilus group and L. reuteri.(ABSTRACT TRUNCATED AT 250 WORDS)

Air Microbiology↗
PubMed1989

Fecal immunoglobulin A (IgA) antibodies to Yersinia enterocolitica in mice orally vaccinated and infected.

Fecal immunoglobulin-A (IgA) antibodies to Yersinia enterocolitica serovar O3 strain were detected in the mice orally immunized with formalin-killed organisms. Y. enterocolitica O3 organisms were inhibited to colonize in the intestines of the mice producing fecal IgA. The fecal IgA antibodies were detected in the mice orally infected with the bacteria. When IgA was produced in the mice infected, they ceased shedding the organisms in their feces.

Animals↗
PubMed1989

Epidemiological studies on the expectation of life for cats computed from animal cemetery records.

Based on the Chiang's method, the life table for cats was constructed from the death data of 3936 cats. They died in the Kanto area and were buried in an animal cemetery in Tokyo from June 1981 through May 1982. This life table seems to be the first one for domestic pet cats. The expectation of life for cats was 4.2 years at age 0, 5.0 years at age 1, 5.4 years at age 4, 5.3 years at age 5, 3.5 years at age 10, and 2.2 years at age 15. The maximum age at death was 22 years. From age 0 to age 5, the probability of dying for cats was higher than that for dogs, but over 6 years of age it seemed that Gompertz's equation was applicable to this life table for cats. From these results, if the probability of dying for cats at early ages decreases, the fundamental pattern of dying curve for cats seems to be a similar figure of dogs. The life table was constructed for different breeds and localities. Comparing the expectation of life at age 1 (e1) of the two populations divided by breeds or localities, there was significant difference in the e1 among different localities but not among different breeds. These facts suggest the existence of some factors which may influence the life span of cats among different localities.

Animals↗
PubMed1989

Occurrence of Yersinia enterocolitica in the Tokyo Tama Zoo.

Yersinia enterocolitica serogroups O5A and O8 were isolated from fecal samples of one colony of Japanese macaques (Macaca fuscata) from the Tokyo Tama Zoo (Japan). Serogroup O5A was detected in brown bear (Ursus arctos) prior to the isolation from the macaques. Serogroup O5A organisms also were isolated from the Japanese macaques' breeding area. Serogroup O5A and O8 isolates were not pathogenic. Serogroup O8 isolates did not possess the O7 or O19 antigens.

Animals↗
PubMed1989

A survey for Yersinia pseudotuberculosis in migratory birds in coastal Japan.

Yersinia pseudotuberculosis was isolated from three specimens of two species of birds, the black-faced bunting (Emberiza spodocephala) and pied wagtail (Motacilla alba), of 528 specimens of birds examined from coastal regions in Japan. The two isolated strains of Y. pseudotuberculosis were identified as serovar 4b and serovar 3. This is the first isolation of Y. pseudotuberculosis from birds in Japan. Yersinia enterocolitica was isolated from three specimens of the pied wagtail, one specimen of the reed bunting (Emberiza schoeniclus) and one specimen of the rustic bunting (Emberiza rustica). Yersinia frederiksenii was isolated from two specimens of the gray-rumped sandpiper (Heteroscelus brevipes). Yersinia intermedia was isolated from one specimen of the pied wagtail.

Animals↗
PubMedDate not supplied

Contamination of Salmonella blockley in the environment of a poultry farm.

Cecal and environmental samples were collected and examined for the presence of Salmonella on a farm where a high prevalence of Salmonella blockley in chickens was observed. Of 895 cecal and 525 environmental samples examined, 242 (27.0%) and 202 (38.5%) samples, respectively, yielded S. blockley. From the analysis of plasmid profile patterns, 11 different plasmid profile patterns were found among 444 isolates, with plasmid patterns c and d the most frequent among the isolates from ceca and the environment. Salmonella blockley was isolated from environmental samples such as floor litter, walls, drinking water, waste water, dust, and soil collected when barns were occupied and was positive in drinking water, waste water, and soil when samples were collected from empty barns with occupied neighboring barns, but it was negative in all environmental samples with the exception of soil when the environmental samples were collected from empty barns with empty neighboring barns.

Animal Husbandry↗