| A study on the drug residues in the raw milk collected over the withdrawal period after mastitis treatment using TTC-II test and delvotest SP |
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Jeong-hun Kang, Jin-suk Kim, Won-chang Lee |
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School of Veterinary Medicine, KonKuk University |
| 유방염 치료후 휴약기간이 지난 원유내 잔류약제에 관한 연구 |
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강정훈, 김진석, 이원창 |
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건국대학교 수의학부 |
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| Abstract |
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From July of 1997 to June of 1998, total 279 raw milk samples over withdrawal period after mastitis treatment from dairy farms located in the provinces of Kyonggi and Choongchung were collected to test drug residues. Each sample was tested by TTC- II test and Delvotest SP. Among the total 152 raw milk samples of cow treated by ${eta}$-lactams, 32 samples(21.2%) were positive on the Delvotest and 15 samples(9.9%) showed positive on the TTC-II test. Also, from the total 37 samples treated by sulfonamides, 5 samples(13.5%) were positive on the Delvotest and 3 samples(8.1%) showed positive on the TTC-II test. For the total 55 raw milk samples of cow treated by tetracyclines, 9 samples(16.4%) were positive on the Delvotest and 5 samples(9.1%) showed positive on the TTC-II test. In addition, from the total 35 samples treated by aminoglycosides, 7 samples(20.0%) were positive on the Delvotest and 5 samples(14.3%) showed positive on the TTC-II test. Our study shows that it is possible that drugs are to be detected by the drug residues test of an individual raw milk even over the withdrawal period after mastitis treatment and the raw milk of bulk tank. |
| Key Words:
TIC-II test, Delvotest SP, drug residue, withdrawal period, milk |
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