Results 161 to 170 of about 153,654 (225)

Pathogenicity of Avian Leukosis Viruses

Avian Diseases, 1982
Three methods were used in attempts to obtain non-oncogenic avian leukosis virus for possible use as an immunoprophylactic agent for the control of lymphoid leukosis in chickens. These were: 1) isolate a nononcogenic virus from commercial breeder flocks experiencing very little or no lymphoid leukosis; 2) obtain a non-oncogenic recombinant from mixed ...
W, Okazaki, H G, Purchase, L B, Crittenden   +2 more
openaire   +2 more sources

Effects of Irradiation on Avian Leukosis

American Journal of Veterinary Research, 1971
SUMMARY Whole body x-irradiation did not increase or decrease the frequency of death due to leukosis in chickens inoculated at 22 or 23 days of age or in ovo with rpl-12 virus. The levels of viremia in chickens inoculated in ovo were not increased by irradiation. Whole body irradiation (500 R) did not affect the frequency, progression, or regression of
R W, Loan, M M, Storm, K C, Sloan, E L, McCune   +3 more
openaire   +2 more sources

Avian leukosis virus contamination in live vaccines: A retrospective investigation in China.

Veterinary Microbiology, 2020
Avian leukosis (AL) is one of the most pandemic immunosuppressive diseases and has been widely spread between 2006 and 2009 in China. The contamination of avian leukosis virus (ALV) in attenuated vaccine is considered as one of the possible transmission ...
Yaqing Mao, Q. Su, Junping Li, Taozhen Jiang, Yixin Wang   +4 more
semanticscholar   +1 more source

The antiviral property of Sargassum fusiforme polysaccharide for avian leukosis virus subgroup J in vitro and in vivo.

International Journal of Biological Macromolecules, 2019
Avian Leukosis Virus Subgroup J (ALV-J) is an oncogenic retrovirus, mainly spread by vertical and horizontal transmission, which have caused severe losses in world poultry industry.
Yuhao Sun, Xiaolin Chen, Lili Zhang, Hong Liu, Song Liu, Huahua Yu, Xueqin Wang, Yukun Qin, Pengcheng Li   +8 more
semanticscholar   +1 more source

Avian Leukosis: Historical Perspectives

Avian Diseases, 1975
What is a perspective of history and how might it be useful today? It can be a reminiscence of events, and people who influenced those events. It is useful to correlate such events and people with various stages of development and apply this knowledge to a current situation.
openaire   +2 more sources

Ultrasensitive electrochemical immunosensor for avian leukosis virus detection based on a β-cyclodextrin-nanogold-ferrocene host-guest label for signal amplification.

Analytica Chimica Acta, 2019
A novel sandwich-type electrochemical immunosensor was fabricated for the ultrasensitive detection of avian leukosis virus subgroup J (ALV-J). The immunosensor used a β-cyclodextrin-nanogold-ferrocene (β-CD-AuNP-Fc) host-guest complex as the label and a ...
Shixue Ning, Mengqi Zhou, Chao Liu, Geoffrey I N Waterhouse, Jing Dong, S. Ai   +5 more
semanticscholar   +1 more source

Characterization of an Avian Leukosis Virus Isolate

Avian Diseases, 1966
An earlier publication reported the screening of hens from a commercial flock (Spring Lake Farms) for the purpose of selecting dams with which to establish a flock free of infection with agents possessing RIF (Resistance Inducing Factor) activity, i.e. the induction of cell resistance to Rous sarcoma virus (RSV) (6).
S, Levine, D, Nelsen, W, Olson
openaire   +2 more sources

Restrictions That Influence Avian Leukosis Virus-Induced Lymphoid Leukosis

1986
Infection of one day old White leghorn chicks with avian leukosis virus (ALV) usually results in the development of a bursal- dependent B-cell lymphoma (Purchase and Burmester, 1978). This tumor requires the bursal environment to develop and is characterized by the presence of cell surface immunoglobulin M (IgM) (Cooper et al., 1974).
E H, Humphries, T W, Baba
openaire   +2 more sources

Genetics of Leukemogenesis by Avian Leukosis Viruses

1981
Oncoviruses of chickens can be classified into one of three groups, depending on their effects on cells in culture and their pathogenicity and lifestyle in the chicken (Fig. 1). The most intensely studied but rarest of these viruses are the transforming acute leukemia and sarcoma viruses.
J M, Coffin, P N, Tsichlis, H L, Robinson   +2 more
openaire   +2 more sources

A recombination efficiently increases the pathogenesis of the novel K subgroup of avian leukosis virus.

Veterinary Microbiology, 2019
In this study, a recombinant ALV with ALV-K env and ALV-J backbone was generated (designated ALV-K-env-J) and tested in vitro and in vivo. The growth curve in DF1 cells showed that the recombinant virus replicated more efficiently in comparison with the ...
Lu Lv, Tuofan Li, Mingyue Hu, Jingjing Deng, Yong Liu, Quan Xie, H. Shao, Jianqiang Ye, A. Qin   +8 more
semanticscholar   +1 more source