The colonization of broiler chickens with<i>Campylobacter jejuni</i>: some epidemiological investigations

Humphrey, T. J.; Henley, A.; Lanning, D. G.

doi:10.1017/s0950268800051025

Cited by 167 publications

(132 citation statements)

References 10 publications

Supporting

Mentioning

110

Contrasting

Unclassified

Order By: Relevance

“…Intervention procedures against horizontal transmission have to be studied further and the effectiveness of strict hygienic practices during the whole production period, such as was described as being successful in small scale experiments by Van de Giessen and colleagues [12] and Humphrey and co-workers [22], should be evaluated on a larger scale.…”

Section: Discussionmentioning

confidence: 99%

Epidemiology ofCampylobacterspp. at two Dutch broiler farms

Jacobs-Reitsma¹,

Giessen

Bolder³

et al. 1995

Epidemiol. Infect.

230

191

View full text Add to dashboard Cite

SUMMARYBroiler flocks on two Dutch poultry farms were screened weekly for the presence of campylobacter in fresh caecal droppings during eight consecutive production cycles. Hatchery and fresh litter samples were taken at the start of each new cycle. Water, feed, insects, and faeces of domestic animals, present on the farms were also included in the sampling. Penner serotyping of isolates was used to identify epidemiological factors that contribute to campylobacter colonization in the broiler flocks. Generally, broiler flocks became colonized with campylobacter at about 3-4 weeks of age with isolation percentages of 100 %, and stayed colonized up to slaughter. A similar pattern of serotypes was found within the various broiler houses on one farm during one production cycle. New flocks generally showed also a new pattern of serotypes. Most serotypes isolated from the laying hens, pigs, sheep and cattle were different from those isolated from the broilers at the same time. Campylobacter serotypes from darkling beetles inside the broiler houses were identical to the ones isolated from the broilers. No campylobacter was isolated from any of the hatchery, water, feed or fresh litter samples. Conclusive evidence of transmission routes was not found, but results certainly point towards horizontal transmission from the environment. Horizontal transmission from one broiler flock to the next one via a persistent contamination within the broiler house, as well as vertical transmission from breeder flocks via the hatchery to progeny, did not seem to be very likely.

show abstract

Section: Discussionmentioning

confidence: 99%

Epidemiology ofCampylobacterspp. at two Dutch broiler farms

Jacobs-Reitsma¹,

Giessen

Bolder³

et al. 1995

Epidemiol. Infect.

230

191

View full text Add to dashboard Cite

show abstract

“…Quinolone treatment should not be seen as a means to eradicate Campylobacter contamination from poultry flocks. Horizontal intervention procedures at the farm level have to be studied further, including large-scale experiments under field conditions into the effect of strict hygiene practices during the whole production period, as described in the successful smallscale experiments of Van de Giessen et al (34) and Humphrey et al (9). Special attention has to be given to the influence of different housing systems and effects of transport on…”

Section: Conclusion and Recommendationsmentioning

confidence: 99%

Aspects of epidemiology ofcampylobacterin poultry

Jacobs-Reitsma¹

1997

Veterinary Quarterly

View full text Add to dashboard Cite

ASPECTS OF EPIDEMIOLOGY OF CAMPYLOBACTER IN POULTRY(summary of thesis, Wageningen Agricultural University, 1994) W.F. Jacobs-Reitsmal SUMMARYCampylobacter bacteria, which in humans cause infections with severe symptoms of diarrhoea, are mainly transmitted by food, especially poultry meat products. Several studies on Campylobacter colonization in breeders, laying hens, and broilers were carried out. Isolates were serotyped, using a modification of the Penner system, in order to identify epidemiological factors contributing to the Campylobacter colonization of poultry. No evidence was found for vertical transmission from breeder flocks via the hatchery to progeny, nor for horizontal transmission from one broiler flock to the next via persistent contamination of the broiler house. The major route for Campylobacter colonization of poultry is horizontal transmission from the environment. Pigs and poultry flocks (broilers, laying hens, and breeders), and to a lesser extent sheep and cattle, were found to be potential

show abstract

“…Previous studies showed that Campylobacter spp. were recovered from 76% [11], 18% [13], 67% [12], or 57% [22] of flocks. It seems that the recovery rates differ from one country to another.…”

mentioning

confidence: 99%

Antimicrobial Susceptibilities of Campylobacter Strains Isolated from Broilers in the Southern Part of Japan from 1995 to 1999.

Chuma

Ikeda

Maeda

et al. 2001

The Journal of Veterinary Medical Science

View full text Add to dashboard Cite

ABSTRACT. Cecal contents (16 samples/each flock) of broilers derived from 212 flocks were investigated for colonization of Campylobacter from 1995 to 1999 in the southern part of Japan, and the isolates were tested for antimicrobial susceptibilities. C. jejuni-positive flocks numbered 42 (19.8%) and C. coli-positive ones 26 (12.3%); Campylobacter spp. were recovered from 68 flocks (32.1%) in total. MICs of ampicillin, erythromycin (EM), tetracycline, nalidixic acid (NA), norfloxacin (NFLX), and ofloxacin (OFLX) to these 68 Campylobacter isolates were determined. Quinolone-resistant Campylobacter isolates numbered 22 (32.4%). All the isolates except one were cross-resistant to NA, OFLX, and NFLX. A high frequency of quinolone-resistance was found in both C. jejuni and C. coli, whereas a high level of EM-resistance was found in only C. coli strains. All C. jejuni isolates were sensitive to EM. KEY WORDS: antibiotic resistance, broiler, Campylobacter.

show abstract

The colonization of broiler chickens withCampylobacter jejuni: some epidemiological investigations

Cited by 167 publications

References 10 publications

Epidemiology ofCampylobacterspp. at two Dutch broiler farms

Epidemiology ofCampylobacterspp. at two Dutch broiler farms

Aspects of epidemiology ofcampylobacterin poultry

Antimicrobial Susceptibilities of Campylobacter Strains Isolated from Broilers in the Southern Part of Japan from 1995 to 1999.

Contact Info

Product

Resources

About