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Researches On The Developing Regularity Of Cow Mastitis And Studies Of Pathogens Isolation, Identification And Integrated Control In Huaian

Posted on:2007-03-24Degree:MasterType:Thesis
Country:ChinaCandidate:D Y HeFull Text:PDF
GTID:2143360215462979Subject:Farming
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In order to make a scientific plan to prevent cow mastitis for dairyfarms in Huai'an, from May, 2005 to April, 2006, 1,600 puerperal cowsof 2-8 years old were sampled and studied so as to find the regularity ofcow mastitis in 4 counties of Huaian. 64 samples of latex from cows thatsuffered from mastitis were isolated and identified for bacteria. Eventually,100 parturition cows were sampled for prophylactic trial based on chinesetraditional medicine.The results of investigation and study are as follows:1.In Huai'an, the subclinical mastitis cattle positive incidence was56.06±4.58%on average, the udder region positive incidence was26.06±1.02%on average; the clinical mastitis cattle positive incidence was8.63±1.15%on average, while the udder region positive incidence was3.59±0.57%on average. The cow mastitis is related to seasons anddifferent ways of cultivation, but the differences are not significant.2. In Huai'an, the pathogen which cause the cow mastitis are mainlyinclude Staph,Streptoc,Bacterium entericum, which as follows,Staphylococcus aureus account for 24.3%; Staphylococcus epidermidisaccount for 12.2%; Streptococcus agalactiae account for 16.5%;Streptococcus dysgaIactiae account for 8.7%; Streptococcus uberisaccount for 4.3%; Diapyesis streptoc account for 1.7%; Bacillus E.coliaccount for 14.8%; Bacillus proteus account for 5.2%; Klebsiella speciesaccount for 1.7%; Samonella account for 3.5%; Bacillus aeruginosusaccount for 1.7%; Corynebacterium account for 1.7%; Monilia accountfor 3.5%.3.In different seasons, the pathogenic pathogen is significant in Huai'an,infection of Staph is the main reason in summer and autumn, whileinfection of Bacterium entericum is the main reason in spring and winter.4.The drug sensitive test study showed that, because of drug resistance, often-used drug such as penicilin,ampicil,phytomycin are not satisfied. Butflorfenicol is much better.5.It is evident to prevent the cow mastiffs by the Chinese traditionalmedicine which are mixed by ourselves, the rate of cow mastiffs ofexperiment group is only 12%, while the control group is 42%, thedifference is significant (P<0.05).
Keywords/Search Tags:Cow Mastitis, Causative regulation, pathogen, integrated prevention and cure
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