A survey of chlortetracycline concentration in feed and its residue in chicken egg in commercial layer farms

Abstract

The worldwide increase in the use of antibiotics as an integral part of poultry and livestock production industry has recently received increasing attention as a contributory factor in the international emergence of antibiotic-resistant bacteria in human beings. To gauge the presence of the aforementioned scenario in the Indian context, a preliminary survey was conducted to assess the use of chlortetracycline (CTC) in 12 commercial layer farms and to quantify and confirm its residue in the egg. Samples of feed and eggs were collected at day 0 (prior to CTC addition), 3rd, 5th and 7th day during treatment and on the 9th and 14th day (2nd and 7th day after withdrawal of CTC) from each of the 12 commercial poultry farms studied. Concentration of CTC in feed was significantly (P less than 0.01) high on the 3rd, 5th and 7th day. On the 9th day and 14th day CTC concentration in feed was significantly (P less than 0.01) lower compared to the earlier 3 days studied. A highly significant difference (P less than 0.01) of the antibiotic residue in egg was observed in all the 5 days with high residual levels of CTC in egg. CTC in feed and its residue in egg were detected even on the 9th and 14th day respectively.

Phenotypic and genotypic drug resistance profile of Salmonella serovars isolated from poultry farm and processing units located in and around Mumbai city, India

“…Kodimalar et al . [39] reported that occurrence of tetracycline residue in feed samples reflects the extensive use of chlortetracycline agent in chicken production systems. Van Boeckel et al .…”

Antimicrobial Consumption in Medicated Feeds in Vietnamese Pig and Poultry Production

“…Some researchers claim that they are still effective in controlling chronic respiratory infections (Del Pozo Sacristan et al 2012 ). The inclusion of this antimicrobial in poultry feeds is of particular concern because of potential residues in eggs (Kodimalar et al 2014 ). However, in our study it was not possible to determine whether this antimicrobial was included in feed rations aimed at meat or egg chicken production.…”

Exploring alternatives to antibiotics as health promoting agents in poultry- a review

“…Antibiotics are administered to food animals including poultry by several different routes including injections, orally in feed and water. Commonly employed antibiotics for preventative and therapeutic purposes in poultry are chlortetracycline (Athar & Ahmad, 1996;Kodimalar et al, 2014), furazolidones (Oluwasile et al, 2014), fluroroquinolones (Anderson & Macgowan 2003;Luangtongkum et al, 2006;Martinez et al 2006;Billah et al, 2015), oxytetracycline (Adel Feizi, 2013), sulphonamides (Persoons et al, 2012), gentamicin (Alm El Dein & Elhearon, 2010), Quinolones (Naeem et al, 2006).…”