Effects of feeding plant-derived agents on the colonization of Campylobacter jejuni in broiler chickens.
Poult Sci
; 93(9): 2337-46, 2014 Sep.
Article
em En
| MEDLINE
| ID: mdl-25002548
ABSTRACT
The aim of this work was to test the potential use of plant-derived extracts and compounds to control Campylobacter jejuni in broiler chickens. Over a 7-wk feeding period, birds were fed a commercial diet with or without plant extracts (Acacia decurrens, Eremophila glabra), essential oil [lemon myrtle oil (LMO)], plant secondary compounds [terpinene-4-ol and α-tops (including α-terpineol, cineole, and terpinene-4-ol)], and the antibiotic virginiamycin. Traditional culture and real-time quantitative PCR techniques were used to enumerate the numbers of C. jejuni in chicken fecal and cecal samples. In addition, BW and feed intake were recorded weekly for the calculation of BW gain and feed conversion ratio. The mean log10 counts of C. jejuni were similar (P > 0.05) across treatments. However, significantly lower levels of fecal Campylobacter counts (P < 0.05) were recorded at d 41 for the α-tops treatment by culture methods. No differences (P > 0.05) in BW gain were obtained for dietary supplementation, except for the E. glabra extract, which had a negative impact (P < 0.001) on BW, resulting in sporadic death. Results from this study suggest that supplemental natural compounds used in the current study did not reduce the shedding of C. jejuni to desired levels.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
1_ASSA2030
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2_ODS3
Base de dados:
MEDLINE
Assunto principal:
Doenças das Aves Domésticas
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Infecções por Campylobacter
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Extratos Vegetais
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Galinhas
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Campylobacter jejuni
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Virginiamicina
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Suplementos Nutricionais
Limite:
Animals
Idioma:
En
Revista:
Poult Sci
Ano de publicação:
2014
Tipo de documento:
Article