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집중조명 - 저항성 잡초의 화학적 관리방안 - 최적 살포시스템 구축 저항성잡초 출현빈도 줄여야
정창국,Jeong, Chang-Guk 한국작물보호협회 2010 자연과 농업 Vol.263 No.-
농약회사, 대학 및 연구소, 농업기관 농업인으로 HRAC조직을 구성하여, 저항성잡초의 발생원인 규명, 저항성잡초에 대한 대책방안 제시, 저항성잡초관리요령의 대농민 홍보 및 교육, 조기진단 시스템구축, 최적의 농약살포 방법 모색 및 시행 등으로 구성원간의 상호 연계하여 필요시에는 역할을 분담하여 효율적으로 운영할 필요가 있다.
정창국,조충호,성재기,최희인,황우석,남치주,Cheong Chang-Kook,Jo Choong-Ho,Sung Jai-ki,Choi Hee-In,Hwang Woo-Suk,Nam Tchi-Chou 한국임상수의학회 1984 한국임상수의학회지 Vol.1 No.1
Epizootiolosical factors of 166 cows with abomasal displacement were studied and in 21 out of 166 cows, the functions of liver and kidney were also tested. 1. Incidence of abomasal displacement was perdominant in small sized dairy herd less than 15 cows, using area of paddock below 165㎡. 2. Out of 166 cows with abomasal displacement, 116 cows (70%) were found left sided displacement and 50 cows (30%) were right. 3. Generally, one to two weeks were taken before treatment of veterinarian following onset of sign of the diseases. Therefore many cases were found to be severe in their illness. 4, Incidence rate of abomasal displacement was predominant in summer season (June, July and Au-gust). However, occurence of the disease was continuous throughout the year. About 80 percent of abomasal displacement was distributed from first to third purturition. 5. High milk production and feeding with high concentrates and low roughage showed a tendendy to occurs the disease. 6. Approximately 75% of abomasal displacement was distributed within 1 month pre and post partum. 7. Cows with abomasal displacement consumed little concetrates and 75% of cows with abomasal displacement passed abnormal fecal material. 8. Sixty six out of 166 cows with abomsal displacement were coincident with diseases such as retained placenta, metritis, traumatic reticulo-peritonitis and mastitis. 9. In many cass of abomasal displacement, abomasum was extended with gas. 10. Activities of AST ana LDH showed the trends to reduce after surgical intervention comparing with pre-surgery. Bilirubin concentration markedly decreased after surgical treatment comparing with pre-surgery. 11. The concentration of BUN and creatinine moderatly decreased after surgery compared with pre-surgery.