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A survey of chlortetracycline concentration in feed and its residue in chicken egg in commercial layer farms.
J Biosci ; 2014 Jun; 39 (3): 425-431
Article in English | IMSEAR | ID: sea-161932
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<0.01) high on the 3rd, 5th and 7th day. On the 9th day and 14th day CTC concentration in feed was significantly (P<0.01) lower compared to the earlier 3 days studied. A highly significant difference (P<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.

Full text: Available Index: IMSEAR (South-East Asia) Language: English Journal: J Biosci Year: 2014 Type: Article

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Full text: Available Index: IMSEAR (South-East Asia) Language: English Journal: J Biosci Year: 2014 Type: Article