Abstract
Indiscriminate use of antibiotics in broiler could lead to residue accumulation in food chain. We conducted a study to detect colistin residues in broiler meat in different growth stages, collected from different upazilas of Mymensingh division. A total of 108 samples, were collected from Fulbaria, Mymensingh Sadar, and Trishal Upazila of Mymensingh district and Nakla Upazila of Sherpur district. From each farm, nine samples were collected at the three different growth stages: 14-20 days (Early:E), 21-27 (Middle:M) days and 28-35 (Late:L) days, respectively. Thin layer chromatography (TLC) was used for the qualitative detection colistin residues in broiler meat. A questionnaire survey was carried out with the farmers from whom the samples were collected. Most of the farmers’ had varying degree of knowledge about biosecurity, withdrawal period and residue of antibiotic, and academic qualification varies from primary to graduate level. Out of 108 samples, 50% (18 out of 36) samples were positive for TLC in early samples, whereas 66.67% (24 out of 36) samples for middle and 50% (18 out of 36) for late collected samples. Upazila-wise, the highest concentration was detected in Mymensingh sadar and Nakla (66.67%) and lowest in Fulbaria (33.33%). These result indicates that colistin are being misused in poultry industry especially in middle days of broiler life and withdrawal periods are not maintained when broiler are marketed. Being a Reserve group antibiotics, measures are needed to ensure human safety regarding colistin residue in poultry industry.
 Asian Australas. J. Food Saf. Secur. 2019, 3(1), 43-47
Highlights
The poultry sub-sector is an important avenue in fostering agricultural growth and reduce malnutrition for the people in Bangladesh (Da and Rankin, 2014)
The samples that were collected from Fulbaria, Mymensingh Sadar, Trishal and Nakla Upazila among them 33.33%, 66.67%, 55.56% and 66.67% samples were positive in Thin layer chromatography (TLC) test (Figure 2)
In Vietnam, a study conducted by Thuat et al, 2002 on antibiotic use in animal production and their residues in pork and chicken meat, showed that twenty six different antibiotics were used in pig and chicken production, from which, the seven more frequent were chloramphenicol in 15% of farm, tylosin (15%), colistin (13%), norfloxacin (10%), gentamicin (8%), tetracycline (8%) and ampicillin (7 %)
Summary
The poultry sub-sector is an important avenue in fostering agricultural growth and reduce malnutrition for the people in Bangladesh (Da and Rankin, 2014). Modern animal production practices in Bangladesh and in many countries are associated with regular use of antimicrobials, potentially increasing selection pressure on bacteria to become resistant. Antibiotics that are being used in poultry, could lead to deposit of drug residue in poultry products, when use indiscriminately that may contribute adverse health hazard to the consumers (Sarker et al, 2018). Colistin is a polypeptide antibiotic that is used in veterinary medicine as the sulphate salt for oral preparations and as the methane sulphonate for parental administration (Weiss et al, 2007).
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