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박전홍(J . H . Park),이문한(M . H . Lee) 한국축산학회 1989 한국축산학회지 Vol.31 No.11
Effect of withdrawal time on sulfamethazine residues was investigated in the tissue of treated 12 pigs. A high-pressure liquid chromatographic assay procedure is described at a sensitivity of 2ng. Residual level in pork was 0.07 ppm, 0.10 ppm and 1.00ppm, respectively, of withdrawal times of 3 weeks, 1 week and 1 day after intramuscular administration. Residue in kidney was higher than that of muscle. Violance rate over 0.1ppm was 20.8% in pork and 41.7% in kidney on the market. Withdrawal time of 3 weeks is recommended for intramuscular administrated sulfamethazine in pig.
박전홍(J . H . Park),이문한(M . H . Lee) 한국축산학회 1990 한국축산학회지 Vol.32 No.11
Regulatory analytical methods for sulfonamides residues in pork were put to use by the quarantine laboratory. Violation level is 0.1ppm in pork and violation rate was surveyed as 3.8% in 130 marketed pork samples by HPLC. Sulfamethazine peak was confirmed on 14.6% samples. These violations were due partly to failure to withdraw sulfmethazine properly after treatment.
韓壽南,李文漢,韓弘粟 서울대학교 1975 서울대학교 論文集 Vol.25 No.-
In order to investigate the status of reproductive disturbances, 523 Holstein dairy cows in Chung Nam and Kyengki areas were examined, and 26 heads of normal pregnant cows and 77 heads of sterile cows among these were chosen to determine urinary physicochemical values. For estrogen determination, 2 heads of normal vacant cows in the period of estrus were chosen. These values were statistically and etiologically analysed. The results obtained in this work are summarised as follows: 1. Among 523 heads, 103 (19.4%) were sterile dairy cows and were classified as 19 (18.4%) of follicular cyst, 7 (6.8%) of luteal cyst, 16(15.5%) of endometritis, of unknown etiology, 4 (3.9%) of ovarian hypoplasia, 5(4.85%) of ovarian atrophy, 2(1.94%) of mesosalpingitis, 3(2.9%) of lutein cyst. 2(1.94%) of granulomatic change in ovary, 1(0.97%) of uterine atrophy and 2(1.94%) of pyometra. 2. Significantly hither values of urinary glucose, protein and inorganic phosphorus, and a wide calciumphosphorus ratio of the sterile dairy cow group (77 heads) were observed compare to the normal group. 3. In the follicular cyst group (16 heads), The values of urinary glucose, inorganic phosphorus and urobilinogen were significantly higher than those of normal groups. 4. In the luteal cyst group (6 heads), the urinary values of specific gravity, urobilinogen, total nitrogen and nonprotein nitrogen were significantly lower than those of normal groups. 5. In the endometritis group (10 heads), the urinary values of pH, Specific gravity, nonprotein nitrogen, magnesium, protein and glucose were significantly higher, however, inorganic phosphorus and albuminglobulin ratio of the group were significantly lower than those of normal groups. 6. In the unknown etiology group (40 heads), the values of urinary glucose, ketone bodies and protein were significantly higher than those normal groups. 7. In the other diseases group (5 heads included 2 heads of ovarian hypoplasia and 1 head of ovarian atrophy, mesosalpingitis and granulomatic change of ovary, respectively.), only the specific gravity was lower than that of normal group. 8. The result of determination for three original estrogens; estrone, estradiol and estriol, only estrone content of sterile dairy cow group (5 heads included 4 heads of follicular cyst, 2 heads of luteal cyst and 1 heads of ovarian atrophy) was lower than that of normal vacant cow group.