Incidence of<i>Campylobacter</i>spp. in broiler flocks monitored from hatching to slaughter

Pokamunski, Shimon; Kass, N.; Borochovich, E.; Marantz, B.; Rogol, M.

doi:10.1080/03079458608436268

Cited by 55 publications

(32 citation statements)

References 14 publications

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“…Once campylobacter was isolated from a flock, all broilers in that particular broiler house became colonized within 1 week, and isolation rates in the flocks remained at 100 % up to the time of slaughter. Similar findings, both on the time of first detection and isolation rates within flocks, have been reported in other longitudinal studies [1,15,16]. However, not all broiler flocks were found to be campylobacter-positive at the end of the production cycle.…”

Section: Discussionsupporting

confidence: 89%

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Epidemiology ofCampylobacterspp. at two Dutch broiler farms

Jacobs-Reitsma¹,

Giessen

Bolder³

et al. 1995

Epidemiol. Infect.

230

191

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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.

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Section: Discussionsupporting

confidence: 89%

“…The majority of campylobacter-positive broiler flocks were colonized with more than one serotype at the same time, as has been observed in other studies [15,18]. The serotype distribution within a flock sometimes changed during the production cycle.…”

Section: Discussionsupporting

confidence: 75%

Epidemiology ofCampylobacterspp. at two Dutch broiler farms

Jacobs-Reitsma¹,

Giessen

Bolder³

et al. 1995

Epidemiol. Infect.

230

191

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“…During the slaughter, poultry carcasses become contaminated by the release of intestinal contents or transfer of contamination from the surface flora of the birds [11]. Some investigators [3,6,12,20] found that C. jejuni had already spread at the farm level; but the epidemiology of C. jejuni in broilers and its ecology in farm practices have not been completely defined. The source of C. jejuni contamination at the broiler-growing level is not clear.…”

Section: Methodsmentioning

confidence: 99%

Analysis of Distribution of Campylobacter jejuni and Campylobacter coli in Broilers by Using Restriction Fragment Length Polymorphism of Flagellin Gene.

Chuma

Makino

Okamoto

et al. 1997

The Journal of Veterinary Medical Science

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ABSTRACT. The incidence of Campylobacter jejuni and Campylobacter coli in broiler farms was 33.9% (19/56). C. jejuni-positive flocks accounted for 20.0% (17/85) and C. coli-positive ones was 4.7% (4/85). There were 14 patterns (fla type) of restriction fragment length polymorphism (RFLP) of flagellin A gene among these 22 strains of C. jejuni and C. coli including the standard strain C. jejuni ATCC 33560. Different fla types of Campylobacter were isolated from broilers in different growing cycles on the same farms. Four strains of C. jejuni were isolated from four breeder farms and four fla types of C. jejuni were detected from their progenies reared on growing farms. Three fla types of C. jejuni detected from the progenies were different from those of each breeder. Also, the other three fla types of C. jejuni were detected from different progenies of each growing farm during the next growing cycle. These findings indicate that the RFLP analysis may contribute to epidemiological studies of C. jejuni and C. coli contamination of broilers and suggest the risk of contamination with different types of Campylobacter in every growing cycle of broilers on the farm even on the same farm. They also supported that there was little likeliness of the vertical transmission of C. jejuni and C. coli from breeders to broilers. -KEY WORDS : broiler, Campylobacter jejuni, flagellin gene typing, PCR, restriction fragment length polymorphism.

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“…C. jejuni contamination of poultry meat during processing has been well documented [3,18,24,34]. It is also well known that broilers on growing farms are often infected with C. jejuni or C. coli [5,6,11,20,26]. The Campylobater-positive rate of broilers turn to increase at ages of 3 to 5 weeks [2].…”

mentioning

confidence: 99%

Detection of Thermophilic Campylobacter from Sparrows by Multiplex PCR: The Role of Sparrows as a Source of Contamination of Broilers with Campylobacter.

2000

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ABSTRACT. The best combination of primers and the annealing temperature of multiplex PCR for Campylobacter jejuni, Campylobacter coli, and Campylobacter lari were examined. The multiplex PCR was able to detect type strains of the three species. All results of identification of wild strains (30 strains of C. jejuni, 20 strains of C. coli, and 4 strains of C. lari) by the multiplex PCR coincided with those of the conventional biochemical identification tests, suggesting that the multiplex PCR can simultaneously differentiate C. jejuni, C. coli, and C. lari from wild strains of campylobacters easily and rapidly. Campylobacters were detected from sparrow feces by the multiplex PCR and antimicrobial sensitivities of the strains were determined to discuss the role of sparrows in contamination of broilers with C. jejuni. Three out of 13 strains of C. jejuni isolated from sparrow feces showed quinolone resistance. From the frequent use of quinolones for treatment of industrial animals like chickens, pigs, and cows, the three strains of quinolone-resistant C. jejuni in sparrows must have been originated from those industrial animals. Sparrows that have quinolone-resistant C. jejuni were considered to have contacted with industrial animals or thier feed. It may be presumed, on the contrary, that C. jejuni in sparrows could be a potential source of contamination of broilers.

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Incidence ofCampylobacterspp. in broiler flocks monitored from hatching to slaughter

Cited by 55 publications

References 14 publications

Epidemiology ofCampylobacterspp. at two Dutch broiler farms

Epidemiology ofCampylobacterspp. at two Dutch broiler farms

Analysis of Distribution of Campylobacter jejuni and Campylobacter coli in Broilers by Using Restriction Fragment Length Polymorphism of Flagellin Gene.

Detection of Thermophilic Campylobacter from Sparrows by Multiplex PCR: The Role of Sparrows as a Source of Contamination of Broilers with Campylobacter.

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