1. Salmonella in native 'village' chickens (Gallus domesticus): prevalence and risk factors from farms in South-Central Peninsular Malaysia
- Author
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Saleha Abdul Aziz, Jalila Abu, Latiffah Hassan, Saleh Mohammed Jajere, Nik M Faiz, Zunita Zakaria, and Fauziah Nordin
- Subjects
Serotype ,Salmonella ,Veterinary medicine ,Farms ,prevalence ,Health benefits ,Biology ,Southeast asian ,medicine.disease_cause ,village chicken ,03 medical and health sciences ,Risk Factors ,medicine ,Animals ,Microbiology and Food Safety ,Water tanks ,Poultry Diseases ,030304 developmental biology ,0303 health sciences ,Salmonella Infections, Animal ,Animal health ,Peninsular Malaysia ,0402 animal and dairy science ,Broiler ,Malaysia ,04 agricultural and veterinary sciences ,General Medicine ,040201 dairy & animal science ,risk factor ,Animal Science and Zoology ,Flock ,Chickens - Abstract
Village chicken or Ayam Kampung, common to Southeast Asian countries, has always been regarded as superior in comparison to commercial broiler chicken in terms of wholesomeness and health benefits. The current study investigates the prevalence and risk factors of Salmonella among village chicken flocks from the central and southern states of Peninsular Malaysia. A total of 35 village flocks were sampled from Selangor (n = 19), Melaka (n = 10), Johor (n = 4), and Negeri Sembilan (n = 2). In total, 1,042 samples were collected; these included cloacal swabs (n = 675), eggs (n = 62), pooled drinking water (n = 175), pooled feeds (n = 70), and pooled flies (n = 60). Isolation of Salmonella from cloacal swabs, poultry drinking water, and feeds was carried out according to the protocols and recommendations of the World Organization for Animal Health (OIE) terrestrial manual. The prevalence of Salmonella at an individual bird-level was 2.5% (17/675, 95% CI: 1.6 to 4.0). All eggs screened were negative; in the case of environmental samples, however, Salmonella was detected in 5.14% (9/175), 7.14% (5/70), and 5.0% (3/60) for water, feed, and flies, respectively. A total of 34 isolates and 8 Salmonella serotypes were identified. Weltevreden (20.6%) was the most common, followed by Typhimurium and Agona (17.6%), Albany and Enteritidis (8.8%), Molade (5.9%), Corvallis and Schleissheim (2.9%), and others grouped as Salmonella spp. (11.8%). Multivariable logistic regression models revealed that Salmonella positivity among flocks could be strongly predicted by storage of feeds (uncovered feeds; OR = 10.38; 95% CI: 1.25 to 86.39; p = 0.030) and uncovered water tanks (uncovered tank; OR = 6.43; 95% CI: 1.02 to 40.60; p = 0.048). The presence of Salmonella in village chickens in the study area was lower than that of commercial chickens in Malaysia.
- Published
- 2019