Quarter, cow, and farm risk factors for intramammary infections with major pathogens relative to minor pathogens in Thai dairy cows
作者： Kansuda Leelahapongsathon , Ynte Hein Schukken , Witaya Suriyasathaporn
DOI: 10.1007/S11250-014-0603-8
关键词:
摘要: A cross-sectional study was carried out from May to September 2011 on 35 smallholder dairy farms in Chiang Mai, Thailand, identify the quarter, cow, and farm factors that relate intramammary infections (IMI) major specified pathogens, compared minor pathogens. Data general management, milking dry cow management were recorded for each herd. Quarter milk samples collected either clinical or subclinical mastitis quarters. Dependent variables binary data defining including Streptococcus agalactiae (7.1 %), uberis (9.4 dysgalactiae (4.0 other streptococci (16.7 as a case, all pathogens control, dependent variable. The occurrence of S. IMI lower first-parity cows with short time. Cows body condition score (BCS) 500,000 cells/ml) had higher IMI. For streptococci, quarters having mastitis, BCS <2.5, pulling down cluster while increased relative pathogen These results highlight importance individual factors, characteristics, BMSCC determining risk
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