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ID 183
Eprint ID
183
FullText URL
Title Alternative
Studies on the Prevention of Leucocytozoon Infection of the Chicken. : I. The Behaviour of Culicoides arakawae to an Insecticide, DA-14-7.
Author
Hori, Satoshi
Toriumi, Toru
Tanabe, Akira
Abstract
In resent years, leucocytozoon infection of the chicken was found all over Japan except in Hokkaido. And it was revealed by AKIBA (1960) that Culicoides arakawae is the intermediate host of Leucocytozoon caulleryi. But the effective insecticide for C. arakawae is not yet discovered. In this study we have tested an insecticide named DA-14-7. This insecticide was manufactured recently for trial by a pharmaceutical company. The procedure and the results obtained are as follows. Two hen-houses of nearly the same scale were used for this experiment. In the control hen-house no insecticide was sprayed. In the experimental hen-house, emulsion of DA-14-7(diluted 1/20 with water) was sprayed on the ceiling, the wall, the beam, the pillar, the droppings board and other parts except the feeder and watering installations, at the rate of 300 ml. per m2. Oily solution of DA-14-7 was also sprayed on the hen body at the rate of 7 ml. per hen. These sprayings were repeated 5 times. The first spraying was carried out on September the 14th 1961. The second one on the next day. After the second spraying, the third, the fourth and the fifth spraying were carried out every four days. After spraying, the number of C. arakawae caught by light trap in the experimental hen house did not decrease, but the ratios of engorged female flies markedly declined. The ratios of engorged C, arakawae caught in the control hen house and the experimental hen house before spraying were between 83 % and 97 %. Seven hours after spraying, the ratios of engorged flies caught in the experimental hen house were from 6.3 % to 1.1 %, and 24 hours later 18.8 %, and 72 hours later from 34.4 % to 38.4 %. We cannot be satisfied with the effect of DA-14-7 as a repellent for C, arakawae. But, if the effective period of sprayed DA-14-7 is made longer and sprayed in relatively short intervals, the DA-14-7 is effective for protecting the chicken from suffering with C. arakawae, and consequently, the opportunity of the chicken to contact leucocytozoon infection and the degree of infection may be diminished considerably.
Published Date
1964
Publication Title
岡山大学農学部学術報告
Publication Title Alternative
Scientific Reports of the Faculty of Agriculture Okayama University
Volume
volume24
Issue
issue1
Publisher
岡山大学農学部
Publisher Alternative
Faculty of Agriculture, Okayama University
Start Page
47
End Page
54
ISSN
0474-0254
NCID
AN00033029
Content Type
Departmental Bulletin Paper
language
日本語
File Version
publisher
Refereed
False
Eprints Journal Name
srfa