Virucidal Properties of Bioceramic Derived from Chicken Feces pH 13 and its Stability in Harsh Environments
Chanathip ThammakarnNatthanan SangsriratanakulYuki IshidaAtsushi SuguroMasashi YamadaChiharu ToyofukuKatsuhiro NakajimaMinori KitazawaMari OTAHakimullah HakimMS AlamDany ShohamKazuaki Takehara
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Abstract:
Bioceramic derived from chicken feces (BCX) is a material produced by a sintering process for the purpose of use in animal farms to control livestock infectious diseases. In the present study, BCX at pH 13 was evaluated for the durability of its virucidal activity in simulated field conditions. First it was shown that BCX had activity toward Newcastle disease virus, infectious bursal disease virus, and goose parvovirus within 3 min and toward avian influenza virus (AIV) within 1 hr. BCX was further tested by keeping it under simulated harsh environmental conditions with sunlight for several weeks as well as by repeatedly soaking it with water and drying under sunlight many times. After sampling every 2 consecutive weeks and every 2 (of 9) consecutive resuspensions, BCX was evaluated for its efficacy against AIV. Evaluation under the harsh conditions illustrated that BCX could retain its satisfactory efficacy toward AIV throughout 7 wk and through 9 resuspensions. It is hence concluded that BCX is an excellent material for applying in livestock farming as a trapping disinfectant, due to its efficacy to inactivate various viruses, and that this efficacy is prolonged even under harsh environmental conditions.Keywords:
Disinfectant
Newcastle Disease
Infectious bursal disease
A study was conducted to assess the effects of aflatoxin contaminated feed on the immunoresponse of one-day old layer chicks to attenuated live virus vaccines for Newcastle disease (ND), infectious bronchitis (IB) and infectious bursal disease (IBD). Concurrent exposure of chickens to 2tiO parts per billion (ppb) aflatoxin in feed and vaccination against ND, IB and IBD resulted in lack of adequate protection against subsequent experimental challenge, as assessed by antibody responses compared to chickens fed aflatoxin-free ration. The mortalities were higher in chickens fed 200 ppb of aflatoxin than in chickens fed on aflatoxin-free ration.
Infectious bursal disease
Newcastle Disease
Poultry farming
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STUDY ON EFFICACY OF COMPOUND CHLORINE-CONTAINING DISINFECTANT IN INACTIVATING AVIAN INFLUENZA VIRUS
Klein-Defors suspension killing and infection test method was used to examine the efficacy of compound chlorine-containing disinfectant in inactivating avian influenza virus subtypes H5N1 and H9N2.Results: The chlorine-containing disinfectant at concentrations in the range of above 125 mg/L could kill over 99.99% of 2 subtype avian influenza virus.In practical use,the recommended applied concentration of the disinfectant is 167 mg/L.Conclusion: The compound chlorine-containing disinfectant has good efficacy in inactivating these 2 subtypes of avian influenza virus.
Disinfectant
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Newcastle Disease
H5N1 genetic structure
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This work has the objective of verifying the interference of infectious bursal disease virus in the antibody production against Newcastle disease virus and infectious bronchitis virus. The experiment was carried out with 640 day-old-chicks from a 42 weeks old hen flock. The birds were separated into eight experimental groups (n=80/group) and were submitted to different combinations of vaccinations, with live vaccines, to Newcastle disease, avian infectious bronchitis, and infectious bursal disease with diverse combinations of days of vaccination. We verified that the utilization of polyvalent vaccinal programs have a different efficacy comparing to monovalent vaccinations when Newcastle disease, infectious bronchitis, and infectious bursal disease vaccinations are applied. This way, the use of vaccinations to infectious bursal disease in polyvalent vaccinal programs is desirable due to improvement of NDV response with the presence of IBV by the probable reduction of interference of IBV under NDV.
Infectious bursal disease
Newcastle Disease
Flock
Avian infectious bronchitis
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Three different poultry products, Hubbard Broiler, Turkey and backyard sold within Erbil local markets have been tested for viral infection against highly pathogenic avian influenza (HPAI) and Newcastle disease (ND). An assay test device, Quacking AI virus antigen rapid test -based on sandwich lateral flow immune-chromatophic sensitive assay- was applied to detect the AI virus via visible T-band. The result indicated negative viral infection in all three poultry products consumed in there different parts of Erbil province: Darato, Tairawa, Qushtapa and Al-Shurta Quarter. It is concluded that the above procedure is reliable for routine survey against these diseases while further poultry products are recommended for general health check up for the safety of public consumption.
Newcastle Disease
Poultry farming
Highly pathogenic
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Objective To evaluate the bacteria load and disinfectant efficacy after the opening of rapid hand disinfectant, so as to provide reference for the effective use of rapid hand disinfectant in clinic.Methods Three bottles of rapid hand disinfectant in the same department and at the same time were opened for using,15 samples of these disinfectant were randomly taken at the 1st,10th,20th,30th,and 40th day of opening for bacterial culture,and hand samples disinfected with disinfectant were also taken for bacterial culture.Results At the 1 st day of the opening,the highest bacterial count in disinfectant and disinfected hands were 11 CFU/mL and 6 CFU/cm~2 respectively, but with the prolonged duration of opening of disinfectant,bacterial count in disinfectant and hands increased obviously,which were up to 93.1 CFU/mL and 9.45 CFU/ cm2 respectively.Conclusion Rapid hand disinfectant should be used within 30 days after opening;for the department without enough staffs,small-packaged rapid hand disinfectant is suggested to avoid waste and contamination.
Disinfectant
Bacterial colony
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Newcastle Disease
H5N1 genetic structure
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[Objective] The research aimed to investigate the epidemiological characteristics of avian Influenza and newcastle disease virus of wild Ardeid birds in Suichuan Region of Jiangxi Province. [Method]110 oropharyngeal and 110 cloacal swabs of Ardeid birds were collected from Suichuan Region of Jiangxi Province in October of 2014. The viruses were separated by using SPF chicken embryos and suspected positive samples were screened out by hemagglutination test and identified by RT-PCR. [Result] Among 110 detected samples,hemagglutination titer of other samples was 0 except 4 samples. The detection results of RT-PCR showed that the detection samples of avian Influenza and newcastle disease virus of all samples were negative. This indicated that the infection risk of avian Influenza and newcastle disease of Ardeid birds in Suichuan Region of Jiangxi Province in the summer of 2014 was small. [Conclusion] The research could provide basic data for understanding the infection situations of avian Influenza and newcastle disease of wild water birds in each region of Jiangxi Province.
Newcastle Disease
Hemagglutination assay
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