ABSTRACT
Aims@#Psittacine birds such as parrots, macaws, cockatoos, lovebirds and parakeets, are widely reared as household pets or at aviary due to their attractive features. However, the status of virus-causing diseases of psittacine species in Malaysia is fairly under-documented. Therefore, this study was aimed to detect the presence of three common avian viruses that infect psittacine birds, i.e. beak and feather disease virus (BFDV), avian polyomavirus and avian papillomavirus. @*Methodology and results@#Faecal samples from twelve asymptomatic captive psittacine birds of different species were collected from an undisclosed animal garden in Serdang, Selangor, Malaysia. Briefly, the sample was homogenised and resuspended with SM buffer with the ratio 1:1 (weight of sample/g: volume of SM buffer/mL) before centrifugation at 1,000 × g for 20 min. The supernatant was collected and filtered before subjected to genomic DNA extraction using a commercialised kit. Polymerase chain reaction (PCR) technique was used to screen the V1, VP1 and L1 genes of beak and feather disease virus (BFDV), avian polyomavirus and avian papillomavirus, respectively. Findings revealed that the samples were negative for BFDV and avian polyomavirus. However, positive results of 1.5 kbp PCR amplicon were detected for avian papillomavirus in four out of the 12 samples (33.33%), which was from the white-crested cockatoo, African grey parrot, yellow-collared macaw and Senegal parrot. Sequence analysis of the L1 gene from the Senegal parrot Poicephalus senegalus revealed 93% identity to a reference Psittacus erithacus timneh avian papillomavirus.@*Conclusion, significance and impact of study@#This study added to the limited prevalence data of three important avian viruses which infect captive psittacines in Seri Kembangan, Selangor, Malaysia. Avian papillomavirus, but not BFDV and avian polyomavirus, was detected in the collected captive psittacine birds. Therefore, a routine screening can be performed to monitor the health status of birds despite their asymptomatic manifestation, in order to prevent possible virus transmission.
Subject(s)
Virus Diseases , BirdsABSTRACT
Aims@#Campylobacter is a major cause of gastroenteritis in humans worldwide, particularly in developed countries and is reported to show an increased trend in antibiotic resistance. The purpose of this study was to determine the occurrence of Campylobacter in wild birds, poultry and in poultry environments in Selangor, Malaysia as well as to determine the rate of antibiotic resistance among Campylobacter isolates from poultry and wild birds. @*Methodology and results@#The wild birds were trapped near poultry farm areas and in open areas which were more than 5 km away from poultry farms (refered to as open environment). Of 57 wild birds trapped near the farm environment, 17.5% were positive for Campylobacter and out of these, 90% were Campylobacter jejuni. Of a total of 77 birds in the open environment, 22.1% were positive for Campylobacter and of these 88.7% were C. jejuni. The poultry farms consisted of 3 chicken and 2 duck farms. About 60% of the chickens and 44.8% of the ducks were positive for Campylobacter of which 80% were C. jejuni, while 20% were Campylobacter coli. The Campylobacter isolates were subjected to antibiotic susceptibility test using disk diffusion method against 12 antibiotics. All the isolates (100%) from wild birds around poultry houses were resistant to at least one antibiotic. @*Conclusion, significance and impact of study@#The findings showed 93% of the isolates from wild birds were resistant to at least two antibiotics. Campylobacter isolates from poultry in the farms were resistant to at least one antibiotic. The antibiotic resistant Campylobacter is of public health importance.
ABSTRACT
@#Aims:Campylobacter infection is one of the leading bacterial food-borne illness and most frequently reported in humans in developed countries. This study was designed to determine the prevalence of multidrug resistant (MDR) Campylobacterand the risk factors associated with their occurrence in broiler chicken meat retailed in markets. Methodology and results:A total of 210 samples consisting of 140 chicken meat and 70 swabs from weighing scales and cutting boards were collected. Isolates were cultured by passive filtration method, identified by biochemical tests and confirmed using PCR assay.Thirty-two(32/210) 15.2% were positive for Campylobacterof which (25/210) 11.9%, (6/210) 2.9% and (1/210) 0.5% were Campylobacter jejuni, C.coli andC.upsaliensis respectively. The isolates showed high resistance to ampicillin (62.5%), enrofloxacin (56.3%) and nalidixic acid (50.0%), while only 3.1% were resistant to streptomycin. Multidrug resistant isolates (resistance to at least one antibiotics in three classes or more) was high at 71.9%. The risk factors significantly (p<0.05) associated with Campylobactercontamination on chicken’smeat included poor workers hygiene {OR: 5.250 (95% CI: 0.988-27.895)}, wearing improper work attire {OR: 2.700 (95% CI: 1.144-6.374)}, poor protective equipment {OR 38.50 (95% CI: 2.915-508.463)}, poor environment/stall hygiene {OR 44.00 (95% CI: 2.193-882.66)}, and using tiled counter top surface {OR 6.667 (95% CI: 0.597-74.506). Conclusion, significance and impact of study:The finding of this study affirmed that lack or poor work hygiene, unclean environmental stall and protective equipment are associated with high occurrence of multidrug resistant Campylobacterspecies isolated from chicken meat