Inoculação de salmonella enterica subespecie enterica sorovar enteritidis fagotipo 4 em ovos embrionados de duas linhagens de frango de corte
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Data
2005-09-16
Autores
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Universidade Federal de Goiás
Resumo
Two experiments were carried out to evaluate the use of
quaternary ammonia on Salmonella Enteritidis inoculated in eggshell and its
penetration capacities, verify the ability to infect the egg inoculated in eggshell,
determine embryo mortality, infect hatched chicks and affect incubation
parameters of two broiler lines. A total of 302 and 290 fertile eggs of Ross and
ISA Label, respectively, were distributed in six treatments: eggs sanitized with
placebo (Treatment 1- PC) quaternary ammonia inoculated with Salmonella
Enteritidis (Treatment 2-PI); eggs non-sanitized and inoculated placebo
(Treatment 3- NPC) with Salmonella Enteritidis (Treatment 4- NPI); eggs
inoculated in allantoidal cavity with placebo (Treatment 5-CAC) or Salmonella
Enteritidis (Treatment 6- CAI). Immediately after inoculation, the eggs were
hatched and embryo mortality was evaluated after 96, 432 and 528 hours. The
qualitative results were analyzed by non-parametric tests of chi-square and
Kruskall-Wallis. The incubation parameters were not affected when the
pathogen was inoculated in eggshell. It was observed that Salmonella
Enteritidis inoculated in allantoidal cavity determined late embryo mortality in
fast 17,02% and slow growing 13,04% lines, and eggs inoculated in allantoidal
cavity originated chicks with high frequency of intestinal colonization by
Salmonella Enteritidis of 76,67% and 26,67% Ross and ISA Label, respective.
Descrição
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ISA Label , Mortalidade embrionária , Patógeno , Ross , Sanitizante , embryo mortality , pathogen , Ross , sanitizers
Citação
ANDRADE, Maria Auxiliadora. Inoculação de salmonella enterica subespecie enterica sorovar enteritidis fagotipo 4 em ovos embrionados de duas linhagens de frango de corte. 2005. 113 f. Tese (Doutorado em Ciência Animal) - Universidade Federal de Goiás, Goiânia, 2005.