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Performance comparison between broilers positive and negative for antibodies against the chicken anemia virus

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Performance comparison between broilers positive and negative for antibodies against the chicken anemia virus

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Título Performance comparison between broilers positive and negative for antibodies against the chicken anemia virus
Autor Rubin, Lauricio Librelotto
Ávila, Luiz Antônio Faccenda de
Ribeiro, Andrea Machado Leal
Wald, Vera Beatriz
Canal, Cláudio Wageck
Abstract The chicken anemia virus (CAV) is present in virtually every country investigated, Brazil including. The aim of this study was to determine what the difference in performance is between positive (progeny of breeders vaccinated or with natural infection) and negative broilers to the presence of antibodies against the CAV in currently intensive raising systems. As a result, it was observed that negative broilers were significantly heavier than positive broilers. Negative males had a final weight 5.43% higher than positive males. There was no significant difference among different treatments in relation to parameters as mortality and feeding conversion. These study indicated that the presence of antibodies against CAV in broilers – may it be through vaccination or natural infection of breeders – did not generate progeny with superior performance under the tested raising conditions.
Contido em Brazilian Journal of Microbiology. São Paulo, SP. Vol. 34, supl. 1, (nov. 2003), p. 88-89
Assunto Avicultura
Doenca animal
Frango de corte
[en] Antibody
[en] Broiler
[en] Chicken anemia virus
[en] Performance
[en] Vaccine
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/19805
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