dc.contributor.author | Orwa, Joy D | |
dc.contributor.author | Matofari, Joseph W | |
dc.contributor.author | Muliro, Patrick S | |
dc.contributor.author | Lamuka, Peter | |
dc.date.accessioned | 2017-04-06T09:14:36Z | |
dc.date.available | 2017-04-06T09:14:36Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Orwa et al. International Journal of Food Contamination (2017) 4:5 DOI 10.1186/s40550-017-0050-1 | en_US |
dc.identifier.uri | http://link.springer.com/article/10.1186/s40550-017-0050-1 | |
dc.identifier.uri | http://hdl.handle.net/11295/100760 | |
dc.description.abstract | Background:
Antibiotic residues are drug substances found in food from plants or animals initially exposed to
antibiotics. In animal husbandry antibiotics have wide
ly been used for the treatment of animal diseases. These
residues have the ability to expose the public to seriou
s health hazards. In Kenya drug residues have not only
been related to lack of withdrawal periods but also to intentional addition to extend milk
’
s shelf life.
Results:
The aim of this study was to investigate the occurrence of 13 veterinary drugs of tetracyclines and
sulphonamides along the dairy sub value chain. The study was carried out in Nakuru County which is the leading
milk producer in the country. A total of 229 samples were analysed from rural and 80 samples from peri-urban. These
were collected from different nodes of the value chain; the farm, milk transporters and at the bulking centers between
January 2014 and November 2015. Screening of samples was done by Charm II Blue -Yellow-test while
confirmation was done by HPLC-UV for sulfachloropyradizine (SCL), sulfadiazine (SDZ), sulfadimidine (SMTZ),
sulfaquinoxaline (SQ), sulfamerazine (SMR), sulfathiaz
ole (STZ), sulfamethoxazole (SMX), sulfadoxin (SDOX),
sulfadimethoxin (SDM), oxytetracycline (OTC), doxycyclin
e hyclate (DC), chlortetracycline hydrochloride (CTC) and
tetracycline hydrochloride (TC). In the rural 72 out of
229 (31.4%) samples were positive after screening while
none of the samples confirmed the presence of tetracyclines after analysis with HPLC-UV. Sulphonamides
confirmed after analysis with HPLC-UV were all above the EU MRL limits. In the peri urban 28.8% (23/80) of the
samples were positive for antibiotic residues. Tetracyclines were not detected in confirmation while 60% of the positive
samples were positive for sulphonamides out of which 71% were above the regulatory limits. Highest percentage of
antibiotics was detected in rural farms (46.7%) and at peri urban bulking centers (50%).
Conclusion:
The study concluded that antibiotic residues along the dairy value chain are majorly from the farm due to
lack of withdrawal periods followed by intentional addition along the value chain. Value chain actors should also be
trained on ways of avoiding antibiotic residues from entering the dairy value chain to protect the public from health
effects related to antibiotic residues. | en_US |
dc.language.iso | en | en_US |
dc.publisher | University of Nairobi | en_US |
dc.subject | Antibiotic residues, Contaminants, Tetracyclines, Sulphonamides, Dairy value chain, Rural, Peri-urban | en_US |
dc.title | Assessment of sulphonamides and tetracyclines antibiotic residue contaminants in rural and peri urban dairy value chains in Kenya | en_US |
dc.type | Article | en_US |