Results 181 to 190 of about 6,163 (232)

Resistance to Marek's Disease Virus in White Leghorn Chickens: Effects of Avian Leukosis Virus Infection Genotype, Reciprocal Mating, and Major Histocompatibility Complex

, 2001
Steffen Weigend, Siegfried Matthes, Johann Sölkner, Susan J. Lamont   +3 more
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Characterization of Endogenous Avian Leukosis Viruses in Chicken Embryonic Fibroblast Substrates Used in Production of Measles and Mumps Vaccines

, 2001
Jeffrey A. Johnson, Walid Heneine
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Role of Calcium in Protein Folding and Function of Tva, the Receptor of Subgroup A Avian Sarcoma and Leukosis Virus

, 2001
Qingyin Wang, Klavs Dolmer, Wen Huang, Peter G.W. Gettins, Lijun Rong   +4 more
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Pathogenicity of Two Recombinant Avian Leukosis Viruses

Avian Diseases, 2003
We have recently described the isolation and molecular characteristics of two recombinant avian leukosis subgroup J viruses (ALV J) with an avian leukosis virus subgroup A envelope (r5701A and r6803A). In the present study, we examined the role of the subgroup A envelope in the pathogenesis of these recombinant viruses.
Xinyuan Guan
exaly   +4 more sources

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, Lyman B. Crittenden   +2 more
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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
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Avian Lymphoid Leukosis Prophylaxis with Mibolerone

Avian Diseases, 1977
Duplicate trials with mibolerone at a dose of 1 microng/g of diet for the first 49 days of age reduced the incidence of lymphoid leukosis (LL) significantly (P less than .005) in chickens inoculated as day-old chicks with Rous-associated virus type 1 (RAV-1).
Thomas J. Kakuk, Fred R. Frank, Todd E. Weddon, Ben R. Burmester, H. Graham Purchase, Carlos H. Romero   +5 more
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Genes, Viruses, and Avian Leukosis

BioScience, 1981
Viral induction of leukemia and solid tumors in the chicken were reported in the first decade of the 20th century by Ellerman and Bang (1908, 1909) in Denmark and Rous (1911) in the United States. Over the next 50 years, a small group of workers studied a variety of virus-induced neoplasms in the chicken and developed a number of sarcoma and acute ...
S. M. Astrin, L. B. Crittenden
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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.
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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).
Seymour Levine, Walter Olson, A Doris Nelsen   +2 more
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