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학술 1 - 목장 현장에서 수행하는 젖소의 유방건강 모니터링
남향미,Nam, Hyang-Mi 대한수의사회 2012 대한수의사회지 Vol.48 No.5
본고에서는 유방건강에 대한 목장 현장에서의 접근방식이 제시되었다. 유방건강에 대한 모니터링은 정기적인 데이터 수집과 분석 및 관리방법의 정기적인 평가로 이루어진다. 최종 목표는 위생, 신체충실도, 유두끝 상태, 치료 등과 같은 유방건강 관리에 있어서의 중점관리점을 항상 최적의 결과가 나올 수 있도록 관리하는 것이다. 유방염은 많은 요인에 의해 발생하는 질병이어서 현실에서는 모든 유방염 문제를 완전히 예방하기가 불가능하다. 그러므로, 유방건강에 대한 데이터는 문제가 임상형으로 되기 이전에 이상을 감지할 목적으로도 모니터링 된다. 유방건강에 대한 데이터와 관리방식을 정량측정함으로써 하나의 목장이 효율성에 대해 높은 관심을 갖고 각 과정에 대해 생각하고 명백한 목표를 가지고 있으며 각 과정과 결과에 대해 평가를 하는 하나의 사업으로서 접근된다. 전체적인 접근은 구체적이고, 측정가능하며, 용인할만하고, 현실적이며, 기한이 정해진 SMART한 목표를 갖는 것으로부터 시작되며, 이러한 목표들을 실현하기 위한 행동계획이 뒤따른다.
남향미,임숙경,장금찬,정대영,김휘영,이청산,정숙찬 한국예방수의학회 2013 예방수의학회지 Vol.37 No.3
During January-November 2012, a total of 2,041 quarter milk samples were collected from dairy cattle of 82 dairy farms nationwide. About 42%(870/2,041) of the samples that had somatic cell counts(SCC) of ≥200,000 cells/ml were subjected to microbiological examination. No bacteria was isolated from 95 of 870(10.9%) samples. Among 1,237 bacteria isolated from the rest 775 samples, 1,085 were identified with VITEK: more than half(52.1%, 645/1,237) of the isolates were gram negative bacillus. Gram positive cocci including Staphylococcus accounted for 35% of the isolates and almost none of gram positive bacilli isolated. Excluding Coagulase-negative Staphylococcus(CNS), the most frequently isolated bacterial species was Escherichia coli(11.2%,138/1,237), followed by Klebsiella pneumoniae(8.1%,100/1,237), Staphylococcus aureus(7.1%,88/1,237), Enterobacter cloacae(6.0%,74/1,237), Serratia marcescens(3.5%,43/1,237). The most common resistance of S. aureus was to penicillin(77.4%) and ampicillin(73.0%), while no resistance was observed against gentamicin and cephalothin. Although CNS presented resistance to all antimicrobials tested but the most prevalent resistance was to penicillin(35.6%) and ampicillin(37.0%). The pattern of antimicrobial resistance observed in CNS was similar to that of S. aureus, but the rates were much lower than those of S. aureus. E. coli also showed resistance to all the antimicrobials tested, although the rates were not very high. The highest resistance of E.coli was to cephalothin(39.4%) and ampicillin(36.2%), while most of the strains(98.0%) showed sensitivity to amikacin. The results of this study provide information on current situation of bovine mastitis in Korea.
남향미,문진산,주이석,오태호,박용호,한홍율,Nam, Hyang-mi,Moon, Jin-san,Joo, Yi-seok,Oh, Tae-ho,Park, Yong-ho,Han, Hong-ryul 대한수의학회 1999 大韓獸醫學會誌 Vol.39 No.5
This study was carried out to determine the effects of ${\beta}-carotene$ on the control of mastitis in dairy cows during the dry period. The relationship between the levels of plasma ${\beta}-carotene$ and the status of udder health in Holstein dairy cows were investigated. Blood samples were collected from 117 cows to compare the levels of plasma ${\beta}-carotene$ in lactating cows. The levels of plasma ${\beta}-carotene$ were $1.82{\mu}g/ml$ in healthy cows(n = 65) and $1.12{\mu}g/ml$ in mastitic cows(n = 52), respectively(p < 0.01). In the experiment to compare the level of plasma ${\beta}-carotene$ in the cows at different stages of lactation, the plasma ${\beta}-carotene$ levels were $1.73{\mu}g/ml$ in lactating cows(n = 22), $1.29{\mu}g/ml$ in nonlactating cows(n = 35) and $0.43{\mu}g/ml$ in cows after calving(n = 16)(p < 0.05).